WorldWideScience
1

Role of Estrogen Receptor-? in the Regulation of Claudin-6 Expression in Breast Cancer Cells  

UK PubMed Central (United Kingdom)

PurposeIn our previous studies we showed that upregulating claudin-6 (CLDN6) expression may contribute to preventing breast cancer, and that 17β-estradiol induces a concentration-...Full Text Available

2011-03-01

2

Concomitant use of ibuprofen and paracetamol and the risk of major clinical safety outcomes  

UK PubMed Central (United Kingdom)

AIMSTo evaluate and compare the risk of specific safety outcomes in patients prescribed ibuprofen and paracetamol concomitantly with those in patients prescribed ibuprofen or paracetamol...Full Text Available

2010-09-01

3

Protocadherin-PC Promotes Androgen-Independent Prostate Cancer Cell Growth  

UK PubMed Central (United Kingdom)

BACKGROUNDProtocadherin-PC (PCDH-PC) expression is upregulated in apoptosis-resistant sublines of the LNCaP human prostate cancer (CaP) cell line. Here, we assess...Full Text Available

2006-07-01

4

Glutamate Transporter EAAT2 Expression is Up-Regulated in Reactive Astrocytes in Human Periventricular Leukomalacia  

UK PubMed Central (United Kingdom)

The major neuropathological correlate of cerebral palsy in premature infants is periventricular leukomalacia (PVL), a disorder of the immature cerebral white matter. Cerebral ischemia leading...Full Text Available

2008-05-10

5

Ethylene Regulates Monomeric GTP-Binding Protein Gene Expression and Activity in Arabidopsis1  

UK PubMed Central (United Kingdom)

Ethylene rapidly and transiently up-regulates the activity of several monomeric GTP-binding proteins (monomeric G proteins) in leaves of Arabidopsis as determined by two-dimensional gel electrophoresis...Full Text Available

2003-04-01

6

Agonist-dependent up-regulation of thyrotrophin-releasing hormone receptor protein.  

UK PubMed Central (United Kingdom)

To study the effect of agonist on the TRH (thyrotrophin-releasing hormone) receptor protein, an epitope-tagged receptor was stably expressed in HEK-293 cells (human embryonic kidney 293 cells) and receptor...Full Text Available

2004-06-15

7

Simvastatin suppresses LPS-induced MMP-1 expression in U937 mononuclear cells by inhibiting protein isoprenylation-mediated ERK activation  

UK PubMed Central (United Kingdom)

Matrix metalloproteinase (MMP) plays a crucial role in periodontal disease and is up-regulated by oral Gram-negative, pathogen-derived LPS. In this study, we reported that simvastatin, a 3-hydroxyl-3-methylglutaryl-CoA...Full Text Available

2008-10-01

8

Hepatitis C virus core upregulates the methylation status of the RASSF1A promoter through regulation of SMYD3 in hilar cholangiocarcinoma cells  

British Library Electronic Table of Contents (United Kingdom)

Increasing evidence has been accumulated indicating the important role of epigenetic regulation in tumor genesis. Previously, we observed that the transfection of hepatitis C virus core (HCVc) protein led to malignant transformation in normal biliary cells, and that tumor suppressor gene RASSF1A was downregulated in many hilar cholangiocarcinoma patients by hypermethylation in the promoter region. In the present study, we found SET and MYND domain-containing protein 3 (SMYD3), a novel histone methyltransferase, was overexpressed in cholangiocarcinoma patients especially in those with HCV infection. Transfection of HCVc into hilar cholangiocarcinoma cell lines QBC939 and FRH0201 could upregulate the expression of SMYD3 and promote cell growth, which was consistent with the results of our cl...

2011-01-01

9

Regulation of Redd1 Expression by Hypoxia  

International Nuclear Information System (INIS)

Redd1, a recently discovered stress-response gene, is regulated by hypoxia via hypoxia-inducible factor 1 (HIF-1) and by DNA damage via p53/p63; however, the signaling pathway by which its expression is induced by hypoxia has not been elucidated. We demonstrated that the up-regulation of Redd1 transcription by hypoxia and high cell density (HCD) depends on cooperation between Sp1 and HIF-1#alpha# downstream of the PI3K/Akt pathway.

2006-05-25

10

Butyrate Induces Expression of 17?-Hydroxysteroid Dehydrogenase Type 1 in HT29 and SW707 Colorectal Cancer Cells  

British Library Electronic Table of Contents (United Kingdom)

Epidemiological studies have revealed that butyrate and 17?-estradiol (E2) may decrease the incidence of colorectal cancer (CRC). In peripheral tissue, E2 can be produced locally by 17?-hydroxysteroid dehydrogenase 1 (HSD17B1) estrone (E1) reduction. Using quantitative real-time polymerase chain reaction and western blotting analysis, we found that sodium butyrate significantly upregulates HSD17B1 long and short transcripts and protein levels in HT29 and SW707 CRC cells. Chromatin immunoprecipitation analysis showed that upregulation of these transcript levels correlated with an increase in binding of Polymerase II to proximal and distal promoters of HSD17B1. Moreover, we observed that upregulation of HSD17B1 protein levels was associated with increased conversion of E1 to E2 in HT29 and S...

2011-01-01

11

Roles for Rat Hepatocyte Malignant Transforming Factor (HMTF) in Late Stage of Hepatocarcinogenesis.  

Science.gov (United States)

In a previous study, to identify genes of importance for hepatocellular carcinogenesis, and especially for processes involved in malignant transformation, the authors investigated differences in gene expression between adenomas and carcinomas by DNA microarray. In the present study, the authors investigated AW434047, one of the sequences that was upregulated in carcinomas. The investigation led to the identification of a novel gene, which the authors named hepatocyte malignant transforming factor (HMTF), of unknown function whose expression was increased in hepatocellular carcinomas. Northern blot and in situ hybridization also demonstrated high levels of HMTF in rat hepatocellular carcinoma (HCC) cell lines, lymphocytes in the spleen, colon mucosal epithelia, spermatocytes, and granule cells of the hippocampus. Reduction of HMTF by RNA interference (RNAi) in N1 cells, an HCC cell line, caused suppression of cell ...

2011-09-20

12

Proteomic Profiling of Mesenchymal Stem Cell Responses to Mechanical Strain and TGF-B1  

Energy Technology Data Exchange (ETDEWEB)

Mesenchymal stem cells (MSCs) are a potential source of smooth muscle cells (SMCs) for constructing tissue-engineered vascular grafts. However, the details of how specific combinations of vascular microenvironmental factors regulate MSCs are not well understood. Previous studies have suggested that both mechanical stimulation with uniaxial cyclic strain and chemical stimulation with transforming growth factor {beta}1 (TGF-{beta}1) can induce smooth muscle markers in MSCs. In this study, we investigated the combined effects of uniaxial cyclic strain and TGF-{beta}1 stimulation on MSCs. By using a proteomic analysis, we found differential regulation of several proteins and genes, such as the up-regulation of TGF-{beta}1-induced protein ig-h3 (BGH3) protein levels by TGF-{beta}1 and up-regulation of calponin 3 protein level by cyclic strain. At the gene expression level, BGH3 was induced by TGF-{beta}1, but calponin 3 was not ...

2009-10-12

13

Doxycycline up-regulates the expression of IL-6 and GM-CSF via MAPK/ERK and NF-kB pathways in mouse thymic epithelial cells  

British Library Electronic Table of Contents (United Kingdom)

Thymic epithelial cells (TECs) constitute a major component of the thymic stroma which provides a microenvironment critical for developing thymocytes. We have previously demonstrated that doxycycline (Dox), a tetracycline derivative, enhances the proliferation of the mouse thymic epithelial cell line 1 (MTEC1) via MAPK/ERK signal pathway. Herein we provide evidence that Dox also has profound impact on the cytokine production by MTEC1. Specifically, the expression of IL-6 and GM-CSF, both at mRNA and protein levels, was found to be increased in a time- and dose-dependent manner with the addition of Dox. Western blotting analysis revealed that treatment with Dox-induced phosphorylation of the p65 subunit of NF-kB and ERK. Notably, Dox-induced up-regulation of IL-6 and GM-CSF was largely abol...

2011-01-01

14

The Differentially Expressed Genes by Radiotherapy in the Patients with Uterine Cervix Cancer  

Energy Technology Data Exchange (ETDEWEB)

Purpose : To detect differentially expressed genes in the patients with uterine cervical cancer during the radiation therapy. Materials and Methods : In patients with biopsy proven uterine cervical cancer, we took a tumor tissue just before radiation therapy and at 40 minutes after external irradiation of 1.8 Gy. Total RNAs isolated from non-irradiated and irradiated tumor tissue samples were analyzed using the differential-display reverse transcription-polymerase chain reaction (DDRT-PCR). Complementary DNA (cDNA) fragments corresponding to differentially expressed messenger RNAs(mRNAs) were eluted, and cloned. The differential expression of the corresponding mRNAs was confirmed by reverse northern blot. Differentially expressed cDNA bands were sequenced. Nucleotide sequence data were analyzed in the Gene Bank and EMBL databases via the BLAST network server to identify homologies to known genes or cDNA ...

2001-12-15

15

Seasonal variation of defense-related gene expression in leaves from Bois noir affected and recovered grapevines.  

Science.gov (United States)

Although Bois noir is one of the main phytoplasma diseases of grapevine, the gene expression and enzyme activities that underlie physiological changes occurring in symptomatic and recovered (with spontaneous or induced symptom remission) plants are mostly unknown. Bois noir symptomatic leaves (September 2006, 2007) and symptomless leaves from infected symptomatic plants (September 2007) of Sangiovese (moderately susceptible) and Chardonnay (highly susceptible) cultivars were collected. Moreover, leaves from infected symptomless plants of both cultivars were harvested in June 2007. Leaves from recovered plants were also collected in the same periods. In recovered plants of both cultivars, class III chitinase and almost every time phenylalanine ammonia-lyase and chalcone synthase expression were increased for all collection periods. In symptomatic leaves of both cultivars, the expressions of the same genes were ...

2011-05-31

16

Profiling gene expression responses of coral larvae (Acropora millepora) to elevated temperature and settlement inducers using a novel RNA-Seq procedure  

British Library Electronic Table of Contents (United Kingdom)

Abstract Elevated temperatures resulting from climate change pose a clear threat to reef-building corals; however, the traits that might influence corals- survival and dispersal during climate change remain poorly understood. Global gene expression profiling is a powerful hypothesis-forming tool that can help elucidate these traits. Here, we applied a novel RNA-Seq protocol to study molecular responses to heat and settlement inducers in aposymbiotic larvae of the reef-building coral Acropora millepora. This analysis of a single full-sibling family revealed contrasting responses between short- (4-h) and long-term (5-day) exposures to elevated temperatures. Heat shock proteins were up-regulated only in the short-term treatment, while the long-term treatment induced the down-regulation of rib...

2011-01-01

17

Effect of Wnt-1 inducible signaling pathway protein-2 (WISP-2/CCN5), a downstream protein of Wnt signaling, on adipocyte differentiation  

British Library Electronic Table of Contents (United Kingdom)

Wnt signaling negatively regulates adipocyte differentiation, and ectopic expression of Wnt-1 in 3T3-L1 cells induces several downstream molecules of Wnt signaling, including Wnt-1 inducible signaling pathway protein (WISP)-2. In this study, we examined the role of WISP-2 in the process of adipocyte differentiation using an in vitro cell culture system. In the differentiation of 3T3-L1 cells, WISP-2 expression was observed in growing cells and declined thereafter. In the mitotic clonal expansion phase of adipocyte differentiation, WISP-2 expression was transiently down-regulated concurrently with up-regulation of CCAAT/enhancer-binding protein d expression. Treatment of 3T3-L1 cells in the differentiation medium with lithium, an activator of Wnt signaling, inhibited the differentiation pro...

2009-01-01

18

Ibuprofen lysine (NeoProfen) for the treatment of patent ductus arteriosus  

UK PubMed Central (United Kingdom)

Patent ductus arteriosus (PDA) affects approximately 31% of infants whose birth weight is between 501 and 1500 g. The ductus arteriosus is a blood vessel that allows blood to bypass the pulmonary vasculature...Full Text Available

2007-01-01

19

Solute carrier transporters as targets for drug delivery and pharmacological intervention for chemotherapy  

British Library Electronic Table of Contents (United Kingdom)

Abstract Many solute carrier transporters that interact with anticancer agents and contribute to their pharmacokinetics have been shown to be differentially upregulated in cancer cells as a result of adaptive response to altered nutritional requirements. This review focuses on pathophysiological function of membrane transporters responsible for the influx of physiological substances including oligopeptides, amino acids, and organic cations and anions, and summarizes the recent knowledge regarding mechanisms in their gene expressions. Broad substrate specificity of enhanced oligopeptide H+/peptide cotransporter 1 activity in cancer cells is useful for tumor tissue-specific delivery of chemotherapeutic agents and positron emission tomography diagnostic probes. Amino acid transporters such as...

2011-01-01

20

Purpurin is a key molecule for cell differentiation during the early development of zebrafish retina  

British Library Electronic Table of Contents (United Kingdom)

Recently, we cloned purpurin cDNA as an upregulated gene in the axotomized fish retina. The retina-specific protein was secreted from photoreceptors to ganglion cell layer during an early stage of optic nerve regeneration in zebrafish retina. The purpurin worked as a trigger molecule for axonal regrowth in adult injured fish retina. During zebrafish development, purpurin mRNA first appeared in ventral retina at 2 days post-fertilization (dpf) and spread out to the outer nuclear layer at 3 dpf. Here, we investigated the role of purpurin for zebrafish retinal development using morpholino gene knockdown technique. Injection of purpurin morpholino into the 1-2 cell stage of embryos significantly inhibited the transcriptional and translational expression of purpurin at 3 dpf. In the purpurin mo...

2009-01-01

21

Gene Regulation of Extracellular Matrix Remodeling in Human Bone Marrow Stem Cell-Seeded Tissue-Engineered Grafts  

British Library Electronic Table of Contents (United Kingdom)

Tissue-engineered heart valves are prone to early structural deterioration. We hypothesize that cell?scaffold interaction and mechanical deformation results in upregulation of genes related to osteogenic/chondrogenic differentiation and thus changes extracellular matrix (ECM) composition in human bone marrow mesenchymal stem cell (hBMSC)-derived tissue-engineered grafts. hBMSC were expanded and seeded onto poly-glycolic acid/poly-lactic acid scaffold for 14 days. Seeded tissue-engineered constructs (TEC) were subjected to cyclic flexure for 24?h, whereas control TEC was maintained in roller bottles for the same duration. hBMSC, TEC, and mechanically deformed TEC were subjected to gene-array and histological analysis. Expression levels of RNA and/or protein markers related to chondrogenesis...

2011-01-01

22

Transforming growth factor-b induces CD44 cleavage that promotes migration of MDA-MB-435s cells through the up-regulation of membrane type 1-matrix metalloproteinase  

British Library Electronic Table of Contents (United Kingdom)

CD44, a transmembrane receptor for hyaluronic acid, is implicated in various adhesion-dependent cellular processes, including cell migration, tumor cell metastasis and invasion. Recent studies demonstrated that CD44 expressed in cancer cells can be proteolytically cleaved at the ectodomain by membrane type 1-matrix metalloproteinase (MT1-MMP) to form soluble CD44 and that CD44 cleavage plays a critical role in cancer cell migration. Here, we show that transforming growth factor-b (TGF-b), a multifunctional cytokine involved in cell proliferation, differentiation, migration and pathological processes, induces MT1-MMP expression in MDA-MB-435s cells. TGF-b-induced MT1-MMP expression was blocked by the specific extracellular regulated kinase-1/2 (ERK1/2) inhibitor PD98059 and the specific pho...

2009-01-01

23

Systemic responses to inhaled ozone in mice: cachexia and down-regulation of liver xenobiotic metabolizing genes  

International Nuclear Information System (INIS)

Rats or mice acutely exposed to high concentrations of ozone show an immediate and significant weight loss, even when allowed free access to food and water. The mechanisms underlying this systemic response to ozone have not been previously elucidated. We have applied the technique of global gene expression analysis to the livers of C57BL mice acutely exposed to ozone. Mice lost up to 14% of their original body weight, with a 42% decrease in total food consumption. We previously had found significant up-regulation of genes encoding proliferative enzymes, proteins related to acute phase reactions and cytoskeletal functions, and other biomarkers of a cachexia-like inflammatory state in lungs of mice exposed to ozone. These results are consistent with a general up-regulation of different gene families responsive to NF-#kappa#B in the lungs of the exposed mice. In the present study, we observed significant down-regulation of ...

2005-10-15

24

cDNA Cloning and mRNA analysis of PGC-1 in epitrochlearis muscle in swimming-exercised rats.  

Science.gov (United States)

Peroxisome proliferator-activated receptor gamma coactivator-1 (PGC-1), a cold-inducible coactivator of nuclear receptors, stimulates mitochondrial biogenesis and respiration in muscle cells. In the present study, we first cloned a rat PGC-1 gene from a brown adipose tissue cDNA library which encodes a predicted 796-amino-acid protein and exhibits respectively 98% and 95% identity with the mouse and human homologues. Next, we examined the effect of swimming exercise training on the level of expression of the PGC-1 gene in rat epitrochlearis (Epi) muscle. PGC-1 mRNA level in Epi muscle in rats that swam 2 h a day for 3 and 7 days increased dramatically by 154% and 163%, respectively, compared to the non-exercised control group. PGC-1 mRNA up-regulation was not observed in an immersion group treated at 35 degrees C during the training program but without swimming exercise. These results demonstrate that expression of the ...

2000-08-01

25

Regulatory role of neuron-restrictive silencing factor in expression of TRPC1  

International Nuclear Information System (INIS)

Neuron-restrictive silencer factor (NRSF) binds its consensus element to repress the transcription of various genes. The dominant-negative form (dnNRSF) has a hypertrophic effect on cardiogenesis through an unidentified mechanism. We examined the involvement of transient receptor potential (TRP) channel proteins, using transgenic mice overexpressing dnNRSF (dnNRSF mice). Electrophoretic mobility-shift assays revealed an interaction between NRSF and a neuron-restrictive silencer element-like sequence in intron 4 of TRPC1 genomic DNA. According to RT-PCR and Western analyses, TRPC1 was up-regulated in dnNRSF mouse heart. Transient overexpression of TRPC1 in HEK 293T cells increased the activity of the nuclear factor in activated T cells (NFAT) promoter and stimulated store-operated Ca"2"+ channel (SOCC)-mediated Ca"2"+ entry. Transfection of TRPC1 into primary cardiomyocytes increased NFAT activity, indicating a major role for TRPC1 in NFAT activation. Our findings ...

2006-12-22

26

K"A"T"P channels in mesenchymal stromal stem cells: Strong up-regulation of Kir6.2 subunits upon osteogenic differentiation  

British Library Electronic Table of Contents (United Kingdom)

The promising use of mesenchymal stromal cells (MSC) in regenerative technologies accounts for necessity of detailed study of their physiology. Proliferation and differentiation of multipotent cells often involve changes in their metabolic state. In the present study, we analyzed the expression of ATP-sensitive potassium (K"A"T"P) channels in MSC and upon in vitro differentiation. K"A"T"P channels are present in many cells and regulate a variety of cellular functions by coupling cell metabolism with membrane potential. Kir6.1, Kir6.2 and SUR2A were expressed in undifferentiated MSC, whereas SUR2B and SUR1 were not detected on cDNA and protein level. Upon adipogenic differentiation Kir6.1 and SUR2A showed a significant reduction of the amount of mRNA by 84% and 95%, respectively, whereas Ki...

2011-01-01

27

A human TERT C-terminal polypeptide sensitizes HeLa cells to H2O2-induced senescence without affecting telomerase enzymatic activity.  

Science.gov (United States)

We have constructed a 27-kDa hTERT C-terminal polypeptide (hTERTC27) devoid of domains required for telomerase activity and demonstrated that it is capable of nuclear translocation/telomere-end targeting. Here we showed that expression of a low level of hTERTC27 renders hTERT positive HeLa cells sensitive to H(2)O(2)-induced oxidative stress and subsequent cell senescence. The senescence-associated gene, the cyclin/cdk inhibitor p21(Waf1), was up-regulated. This occurs without changing the expression of endogenous hTERT, causing significant telomere shortening or inhibiting telomerase activity. Results from this study suggest for the first time that in addition to telomerase activity, the C-terminus of hTERT also plays a role in hTERT-mediated cellular resistance to oxidative stress. PMID:12565825

2003-02-14

28

Protein-coding and non-coding gene expression analysis in differentiating human keratinocytes using a three-dimensional epidermal equivalent.  

Science.gov (United States)

The epidermal compartment is complex and organized into several strata composed of keratinocytes (KCs), including basal, spinous, granular, and cornified layers. The continuous process of self-renewal and barrier formation is dependent on a homeostatic balance achieved amongst KCs involving proliferation, differentiation, and cell death. To determine genes responsible for initiating and maintaining a cornified epidermis, organotypic cultures comprised entirely of stratified KCs creating epidermal equivalents (EE) were raised from a submerged state to an air/liquid (A/L) interface. Compared to the array profile of submerged cultures containing KCs predominantly in a proliferative (relatively undifferentiated) state, EEs raised to an A/L interface displayed a remarkably consistent and distinct profile of mRNAs. Cultures lifted to an A/L interface triggered the induction of gene groups that regulate proliferation, differentiation, and cell death. Next, differentially ...

2010-05-25

29

A Wheat Homolog of MOTHER OF FT AND TFL1 Acts in the Regulation of Germination.  

Science.gov (United States)

Seed dormancy is an adaptive mechanism and an important agronomic trait. Temperature during seed development strongly affects seed dormancy in wheat (Triticum aestivum) with lower temperatures producing higher levels of seed dormancy. To identify genes important for seed dormancy, we used a wheat microarray to analyze gene expression in embryos from mature seeds grown at lower and higher temperatures. We found that a wheat homolog of MOTHER OF FT AND TFL1 (MFT) was upregulated after physiological maturity in dormant seeds grown at the lower temperature. In situ hybridization analysis indicated that MFT was exclusively expressed in the scutellum and coleorhiza. Mapping analysis showed that MFT on chromosome 3A (MFT-3A) colocalized with the seed dormancy quantitative trait locus (QTL) QPhs.ocs-3A.1. MFT-3A expression levels in a dormant cultivar used for the detection of the QTL were higher after ...

2011-09-01

30

Role of narK2X and narGHJI in Hypoxic Upregulation of Nitrate Reduction by Mycobacterium tuberculosis  

UK PubMed Central (United Kingdom)

Mycobacterium tuberculosis is one of the strongest reducers of nitrate in the genus Mycobacterium. Under microaerobic conditions, whole cells exhibit upregulation of...Full Text Available

2003-12-01

32

Transcriptome analysis reveals salt-stress-regulated biological processes and key pathways in roots of cotton (Gossypium hirsutum L.).  

Science.gov (United States)

High salinity is one of the main factors limiting cotton growth and productivity. The genes that regulate salt stress in TM-1 upland cotton were monitored using microarray and real-time PCR (RT-PCR) with samples taken from roots. Microarray analysis showed that 1503 probe sets were up-regulated and 1490 probe sets were down-regulated in plants exposed for 3h to 100mM NaCl, and RT-PCR analysis validated 42 relevant/related genes. The distribution of enriched gene ontology terms showed such important processes as the response to water stress and pathways of hormone metabolism and signal transduction were induced by the NaCl treatment. Some key regulatory gene families involved in abiotic and biotic sources of stress such as WRKY, ERF, and JAZ were differentially expressed. Our transcriptome analysis might provide some useful insights into salt-mediated signal transduction pathways in cotton and offer a number of candidate genes as potential ...

2011-04-30

33

ATF4 and the integrated stress response are induced by ethanol and cytochrome P450 2E1 in human hepatocytes  

British Library Electronic Table of Contents (United Kingdom)

Background & AimsMolecular mechanisms underlying alcoholic liver disease (ALD) are still not fully understood. Activating transcription factor-4 (ATF4) is the master coordinator of the integrated stress response (ISR), an adaptive pathway triggered by multiple stressors. which can promote cell death and induce metabolic dysregulation if the stress is intense or prolonged. The aim of this study was to assess the effect of alcohol on the ISR signaling pathway in human liver cells and to define the role of cytochrome P450 2E1 (CYP2E1) in this response. MethodsPrimary cultured human hepatocytes and human HepG2 cells over-expressing CYP2E1 by adenoviral infection were exposed to ethanol (25-100mM) for 8-48h. ResultsEthanol treatment of both liver cells up-regulated ATF4 as well as the pro-survi...

2011-01-01

34

The Immunity-related GTPase Irgm3 Relieves Endoplasmic Reticulum Stress Response during Coxsackievirus B3 Infection via a PI3K/Akt Dependent Pathway.  

Science.gov (United States)

The IRG protein Irgm3 preserves cell survival during coxsackievirus B3 (CVB3) infection. However, the molecular mechanisms are not clear. Here, we examined the effect of Irgm3 expression on ER stress triggered by pharmacological agents or CVB3 infection. In Tet-On/Irgm3 HeLa cells, Irgm3 expression suppressed either chemical- or CVB3-induced upregulation of glucose-regulated protein78. Further, Irgm3 strongly inhibited the activation of both the PERK and ATF6 pathways of ER stress responses, which further led to the diminished phosphorylation of eIF2?, reduced cleavage/activation of transcription factor SREBP1 and attenuated induction of proapoptotic genes CHOP and GADD34. These data were further supported by experiments using Irgm3 knockout mouse embryonic fibroblasts, in which the ER stress induced by CVB3 was not relieved due to the lack of Irgm3 expression. In addition, the tunicamycin-triggered ER ...

2011-10-10

35

Sida rhomboidea. Roxb Leaf Extract Down-Regulates Expression of PPAR?2 and Leptin Genes in High Fat Diet Fed C57BL/6J Mice and Retards in Vitro 3T3L1 Pre-Adipocyte Differentiation.  

Science.gov (United States)

Sida rhomboidea. Roxb leaf extract (SRLE) is being used by the populace of North-East India to alleviate symptoms of diabetes and obesity. We have previously reported its hypolipidemic and anti-diabetic properties. In this study, we report the effect of SRLE on (i) in vivo modulation of genes controlling high fat diet (HFD) induced obesity and (ii) in vitro 3T3L1 pre-adipocyte differentiation and leptin release. Supplementation with SRLE significantly prevented HFD induced increment in bodyweight, plasma lipids and leptin, visceral adiposity and adipocyte hypertrophy. Also, SRLE supplementation reduced food intake, down regulated PPAR?2, SREBP1c, FAS and LEP expressions and up-regulated CPT-1 in epididymal adipose tissue compared to obese mice. In vitro adipogenesis of 3T3L1 pre-adipocytes was significantly retarded in the presence of SRLE extract. Also decreased triglyceride accumulation, leptin release and glyceraldehyde-3-Phosphate ...

2011-07-19

36

Increased expression after x-irradiation of MUC1 in cultured human colon carcinoma HT-29 cells  

International Nuclear Information System (INIS)

The effect of X-irradiation on production of MUC1 was studied with human colon carcinoma HT-29 cells. As evaluated by immunocytochemical staining, the percentages or MUC1-positive cells in cells at 4 days after 6 Gy irradiation and in unirradiated control cells were 52#+-#3.5% (n=6) and 26#+-#2.8% (n=6), respectively. Flow-cytometric analysis of living cells showed that MUC1 began to rise from day 1, reaching a plateau by day 4 after 6 Gy irradiation. Western blot analysis with monoclonal antibody MY.1E12 against glycosylated MUC1 (mature form) showed dose-dependent increases of two bands (500 and 390 kDa) corresponding to two polymorphic MUC1 alleles. Premature forms of MUC1 (350 and 240 kDa) were detectable with monoclonal antibody HMFG-2 only in irradiated cells, suggesting that new core protein synthesis had been induced. The transcriptional activity of the MUC1 gene was analyzed in terms of transient expression of MUC1-CAT reporter plasmids containing ...

2000-03-01

37

Surface modification of functional self-assembled monolayers on 316L stainless steel via lipase catalysis.  

Science.gov (United States)

Lipase catalyzed esterification of therapeutic drugs to functional self-assembled monolayers (SAMs) on 316L stainless steel (SS) after assembly has been demonstrated. SAMs of 16-mercaptohexadecanoic acid (-COOH SAM) and 11-mercapto-1-undecanol (-OH SAM) were formed on 316L SS, and lipase catalysis was used to attach therapeutic drugs, perphenazine and ibuprofen, respectively, on these SAMs. The reaction was carried out in toluene at 60 degrees C for 5 h using Novozyme-435 as the biocatalyst. The FTIR spectra after surface modification of -OH SAMs showed the presence of the C=O stretching bands at 1745 cm(-1), which was absent in the FTIR spectra of -OH SAMs. Similarly, the FTIR spectra after the reaction of the -COOH SAM with perphenazine showed two peaks in the carbonyl region, a peak at 1764 cm(-1), which is the representative peak for the C=O stretching for esters. The second peak at 1681 cm(-1) is assigned to the C=O stretching of the remaining unreacted ...

2006-01-31

38

Disruption of contact inhibition in rat liver epithelial cells by various types of AhR ligands  

Energy Technology Data Exchange (ETDEWEB)

The maintenance of a balance between cell gain and cell loss is essential for proper liver function. The exact role of aryl hydrocarbon receptor (AhR) in regulating cell proliferation and apoptosis of liver cells remains unclear, since ligand-dependent activation of AhR has been shown to induce cell cycle arrest, proliferation, differentiation or apoptosis, depending on the cellular model used. AhR can directly interact with retinoblastoma protein in hepatic cells, forming protein complexes that can efficiently block cell cycle progression by inducing G1 arrest, or to induce the expression of inhibitors of cyclin-dependent kinases, such as p271. On the other hand, it has been suggested that AhR could play a stimulatory role in cell proliferation, either directly or by mediating a release from contact inhibition. It is now generally accepted that progenitor cells exist in the liver, are activated in various liver diseases and can form a potential target cell ...

2004-09-15

39

Antisense-mediated suppression of C-hordein biosynthesis in the barley grain results in correlated changes in the transcriptome, protein profile, and amino acid composition  

DEFF Research Database (Denmark)

Antisense- or RNAi-mediated suppression of the biosynthesis of nutritionally inferior storage proteins is a promising strategy for improving the amino acid profile of seeds. However, the potential pleiotropic effects of this on interconnected pathways and the agronomic quality traits need to be addressed. In the current study, a transcriptomic analysis of an antisense C-hordein line of barley was performed, using a grain-specific cDNA array. The C-hordein antisense line is characterized by marked changes in storage protein and amino acid profiles, while the seed weight is within the normal range and no external morphological irregularities were observed. The results of the transcriptome analysis showed excellent correlation with data on changes in the relative proportions of storage proteins and amino acid composition. The antisense line had a lower C-hordein level and down-regulated transcript encoding C-hordein. The production of the S-rich B/gamma- and D-hordeins was increased and ...

2007-01-01

40

Antisense-mediated suppression of C-hordein biosynthesis in the barley grain results in correlated changes in the transcriptome, protein profile and amino acid composition  

DEFF Research Database (Denmark)

Antisense- or RNAi-mediated suppression of the biosynthesis of nutritionally inferior storage proteins is a promising strategy for improving the amino acid profile of seeds. However, the potential pleiotropic effects of this on interconnected pathways and the agronomic quality traits need to be addressed. In the current study, a transcriptomic analysis of an antisense C-hordein line of barley was performed, using a grain-specific cDNA array. The C-hordein antisense line is characterized by marked changes in storage protein and amino acid profiles, while the seed weight is within the normal range and no external morphological irregularities were observed. The results of the transcriptome analysis showed excellent correlation with data on changes in the relative proportions of storage proteins and amino acid composition. The antisense line had a lower C-hordein level and down-regulated transcript encoding C-hordein. The production of the S-rich B/ - and D-hordeins was increased and ...

2007-01-01

41

Wnt3a Induces Myofibroblast Differentiation by Upregulating TGF-? Signaling Through SMAD2 in a ?-Catenin-Dependent Manner  

UK PubMed Central (United Kingdom)

Growing evidence suggests the Wnt family of secreted glycoproteins and their associated signaling pathways, linked to development, are recapitulated during wound repair and regeneration events. However,...Full Text Available

42

Vitamin A Enhances Antitumor Effect of a Green Tea Polyphenol on Melanoma by Upregulating the Polyphenol Sensing Molecule 67-kDa Laminin Receptor  

UK PubMed Central (United Kingdom)

BackgroundGreen tea consumption has been shown to have cancer preventive qualities. Among the constituents of green tea, (-)-Epigallocatechin-3-O-gallate (EGCG)...Full Text Available

43

Upregulation of prolylcarboxypeptidase (PRCP) in lipopolysaccharide (LPS) treated endothelium promotes inflammation  

UK PubMed Central (United Kingdom)

BackgroundProlylcarboxypeptidase (Prcp) gene, along with altered PRCP and kallikrein levels, have been implicated in inflammation pathogenesis. PRCP regulates angiotensin...Full Text Available

44

Tobacco Upregulates P. gingivalis Fimbrial Proteins Which Induce TLR2 Hyposensitivity  

UK PubMed Central (United Kingdom)

BackgroundTobacco smokers are more susceptible to periodontitis than non-smokers but exhibit reduced signs of clinical inflammation. The underlying mechanisms are unknown. We have...Full Text Available

45

The selective hypoxia inducible factor-1 inhibitor PX-478 provides in vivo radiosensitization through tumor stromal effects  

UK PubMed Central (United Kingdom)

Hypoxia inducible factor-1 (HIF-1) promotes tumor cell adaptation to microenvironmental stress. HIF-1 is up-regulated in irradiated tumors and serves as a promising target for radiosensitization....Full Text Available

2009-04-01

46

Serum Prohepcidin Levels in Helicobacter Pylori Infected Patients with Iron Deficiency Anemia  

UK PubMed Central (United Kingdom)

Background/AimsHelicobacter pylori (H. pylori) infection appears to subvert the human iron regulatory mechanism and thus upregulates hepcidin, resulting...Full Text Available

2010-06-01

47

Intact A?-fibers up-regulate TRPA1 and contribute to cold hypersensitivity in neuropathic rats  

UK PubMed Central (United Kingdom)

Mechanisms underlying cold hypersensitivity in neuropathic states are unclear. Recent data indicate both TRPM8 and TRPA1 play a role. In relation to TRPA1, there are reported increases in mRNA....Full Text Available

2008-06-26

48

IL-18 stimulates IL-13-mediated IFN-?-sensitive host resistance in vivo  

UK PubMed Central (United Kingdom)

IL-4 and IL-13 are up-regulated during in vivo responses to many nematode parasites, but increasing evidence suggests that increases in IL-13 can also occur independently of...Full Text Available

2006-05-01

49

Dual Roles of Nrf2 in Cancer  

UK PubMed Central (United Kingdom)

In response to oxidative stress, the transcription factor NF-E2-related factor 2 (Nrf2) controls the fate of cells through transcriptional upregulation of antioxidant response element (ARE)-bearing...Full Text Available

2008-01-01

50

Augmented behavioral response and enhanced synaptosomal calcium transport induced by repeated cocaine administration are decreased by calcium channel blockers  

UK PubMed Central (United Kingdom)

Recent studies suggest that calcium influx via L-type calcium channels is necessary for psychostimulant-induced behavioral sensitization. In addition, chronic amphetamine upregulates subtype...Full Text Available

2007-07-26

51

Atrial natriuretic peptide signal pathway upregulated in stomach of streptozotocin-induced diabetic mice  

UK PubMed Central (United Kingdom)

AIM: To investigate atrial natriuretic peptide (ANP) secretion from gastric mucosa and the relationship between the ANP/natriuretic peptide receptor type A (NPR-A) pathway and diabetic gastroparesis.METHODS:...Full Text Available

2010-01-07

52

Inhibition of tau fibrillization by oleocanthal via reaction with the amino groups of tau  

Science.gov (United States)

Tau is a microtubule-associated protein that promotes microtubule assembly and stability. In Alzheimer's disease and related tauopathies, tau fibrillizes and aggregates into neurofibrillary tangles. Recently, oleocanthal isolated from extra virgin olive oil was found to display non-steroidal anti-inflammatory activity similar to ibuprofen. Since our unpublished data indicates an inhibitory effect of oleocanthal on A? fibrillization, we reasoned that it might inhibit tau fibrillization as well. Herein we demonstrate that oleocanthal abrogates fibrillization of tau by locking tau into the naturally unfolded state. Using PHF6 consisting of the amino acid residues VQIVYK, a hexapeptide within the third repeat of tau that is essential for fibrillization, we show that oleocanthal forms an adduct with the lysine via initial Schiff base formation. Structure and function studies demonstrate that the two aldehyde groups of oleocanthal are required for the inhibitory ...

2009-06-15

53

Highly Porous, Water-Soluble, Superparamagnetic, and Biocompatible Magnetite Nanocrystal Clusters for Targeted Drug Delivery.  

Science.gov (United States)

Magnetic particles have become very promising materials for drug delivery. However, preparation of magnetite particles with high surface area, biocompatibility, strong magnetic response, and suitable particle size still remains a major challenge. In this report, magnetite nanocrystal clusters with high surface areas were fabricated through a solvothermal process by introducing ammonium acetate as a porogen and trisodium citrate as a surface modification agent. The porosity, which was controlled by the reactant concentration, has been investigated in detail. The surface area of the nanocrystal clusters was as high as 141?m(2) g(-1) . Ibuprofen, as a model drug, was entrapped into the magnetite carriers. The interfacial interaction between the carboxylic groups on the drug molecules and the carboxylate groups on the carriers enhanced the loading efficiency. Low cytotoxicity in MCF-7 cell and in vitro constant drug release behavior combined with the high drug loading ...

2011-09-27

54

Up-Regulation of the RhoA/Rho-Kinase Signaling Pathway in Corpus Cavernosum from Endothelial Nitric-Oxide Synthase (NOS), but Not Neuronal NOS, Null Mice  

UK PubMed Central (United Kingdom)

We tested the hypothesis that the basal release of nitric oxide (NO) from endothelial cells modulates contractile activity in the corpus cavernosum (CC) via inhibition of the RhoA/Rho-kinase signaling...Full Text Available

2010-04-01

55

Selective control of amino acid metabolism by the GCN2 eIF2 kinase pathway in Saccharomyces cerevisiae  

UK PubMed Central (United Kingdom)

BackgroundWhen eukaryotic cells are deprived of amino acids, uncharged tRNAs accumulate and activate the conserved GCN2 protein kinase. Activated Gcn2p up-regulates the general amino...Full Text Available

56

Initial Evaluation of 11C-DPA-713, a Novel TSPO PET Ligand, in Humans  

UK PubMed Central (United Kingdom)

Translocator protein (TSPO) is upregulated in activated microglia and thus can serve as a marker of neuroinflammation. Recently, a novel radioligand, 11C-N,N-diethyl-2-[2-(4-methoxyphenyl)-5,7-dimethyl-pyrazolo[1,5-a]pyrimidin-3-yl]-acetamide...Full Text Available

2009-08-01

57

Heat stress upregulates chaperone heat shock protein 70 and antioxidant manganese superoxide dismutase through reactive oxygen species (ROS), p38MAPK, and Akt  

UK PubMed Central (United Kingdom)

Chinese hamster lung fibroblasts V79 cells were treated with heat stress for 4 weeks with short duration (15 min) heat shock every alternate day in culture. It was observed that Hsp...Full Text Available

2009-11-01

61

Simultaneous determination of the 10 major components of Da-Cheng-Qi decoction in dog plasma by liquid chromatography tandem mass spectrometry.  

Science.gov (United States)

A liquid chromatography tandem mass spectrometry (LC-MS/MS) method was developed for the simultaneous determination of the 10 major components of Da-Cheng-Qi decoction (rhein, emodin, aloe-emodin, chrysophanol, rheochrysidin, naringin, naringenin, hesperidin, magnolol and honokiol) in dog plasma. Plasma samples were spiked with internal standard (ibuprofen), acidified with HCl and extracted twice by liquid-liquid extraction using ethyl acetate. Separation was performed on a YMC-Pack ODS-A C(18) column (5 microm, 150 mm x 4.6 mm) and a C(18) guard column (5 microm, 4.0 mm x 2.0 mm) with methanol-water (92:8, v/v) at a flow rate of 0.3 mL/min. The LC/MS system was operated under the multiple reaction monitoring mode using electrospray ionization in the negative ion mode. All analytes showed good linearity over a wide concentration range (r>0.99). The linear range of the calibration curves was 5000-19.53 ng/mL for rhein; 400-3.13 ng/mL for emodin; 800-3.13 ng/mL ...

2009-05-21

62

Tuning and controlling gene expression noise in synthetic gene networks  

UK PubMed Central (United Kingdom)

Synthetic gene networks can be used to control gene expression and cellular phenotypes in a variety of applications. In many instances, however, such networks can behave unreliably due to gene expression...Full Text Available

2010-05-01

63

Growth-Phase-Dependent Expression of Virulence Factors in an M1T1 Clinical Isolate of Streptococcus pyogenes  

UK PubMed Central (United Kingdom)

The effect of growth phase on expression of virulence-associated factors was studied by Northern hybridization in an M1T1 clinical isolate of Streptococcus pyogenes. Expression of M...Full Text Available

1999-10-01

64

Expression of p53 in leukoplakia and squamous cell carcinoma of the oral mucosa: correlation with expression of Ki67  

UK PubMed Central (United Kingdom)

Aim—To study p53 expression in relation to proliferative status in normal and nondysplastic, dysplastic and malignant lesions of the oral mucosa.Method—The...Full Text Available

1996-06-01

65

EDISA: extracting biclusters from multiple time-series of gene expression profiles  

UK PubMed Central (United Kingdom)

BackgroundCells dynamically adapt their gene expression patterns in response to various stimuli. This response is orchestrated into a number of gene expression modules consisting...Full Text Available

66

Detecting microRNA activity from gene expression data  

UK PubMed Central (United Kingdom)

BackgroundMicroRNAs (miRNAs) are non-coding RNAs that regulate gene expression by binding to the messenger RNA (mRNA) of protein coding genes. They control gene expression by either...Full Text Available

67

Antisense Expression of the CK2 ?-Subunit Gene in Arabidopsis. Effects on Light-Regulated Gene Expression and Plant Growth1  

UK PubMed Central (United Kingdom)

The protein kinase CK2 (formerly casein kinase II) is thought to be involved in light-regulated gene expression in plants because...Full Text Available

1999-03-01

68

A statistical framework for modeling gene expression using chromatin features and application to modENCODE datasets  

UK PubMed Central (United Kingdom)

We develop a statistical framework to study the relationship between chromatin features and gene expression. This can be used to predict gene expression of protein coding genes, as well as microRNAs....Full Text Available

2011-01-01

69

A retinoid responsive cytokine gene, MK, is preferentially expressed in the proximal tubules of the kidney and human tumor cell lines.  

UK PubMed Central (United Kingdom)

The aim of this study was to survey the expression of an embryonic cytokine gene, MK, in the normal organs and neoplastic tissues of adults. Northern analysis showed that MK mRNA was exclusively expressed...Full Text Available

1993-02-01

70

Up-regulation of sucrose metabolizing enzymes in Oncidium goldiana grown under elevated carbon dioxide  

Energy Technology Data Exchange (ETDEWEB)

Experiments were conducted in controlled growth chambers to evaluate how increase in CO{sub 2} concentration affected sucrose metabolizing enzymes, especially sucrose phosphate synthase (SPS; EC 2.4.1.14) and sucrose synthase (SS; EC 2.4.1.13), as well as carbon metabolism and partitioning in a tropical epiphytic orchid species (Oncidium goldiana). Response of ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco; EC 4.1.1.39) to elevated CO{sub 2} was determined along with dry mass production, photosynthesis rate, chlorophyll content, total nitrogen and total soluble protein content. After 60 days of growth, there was a 80% and 150% increase in dry mass production in plants grown at 750 and 1100 {mu} l{sup -}1 CO{sub 2}, respectively, compared with those grown at ambient CO{sub 2} (about 370 {mu} l{sup -}1). A similar increase in photosynthesis rate was detected throughout the growth period when measured under growth CO{sub 2} conditions. Concomitantly, there was a decline in leaf ...

2001-07-01

71

The Notch ligand Delta-like 1 integrates inputs from TGFbeta/Activin and Wnt pathways  

British Library Electronic Table of Contents (United Kingdom)

Unlike the well-characterized nuclear function of the Notch intracellular domain, it has been difficult to identify a nuclear role for the ligands of Notch. Here we provide evidence for the nuclear function of the Notch ligand Delta-like 1 in colon cancer (CC) cells exposed to butyrate. We demonstrate that the intracellular domain of Delta-like 1 (Dll1icd) augments the activity of Wnt signaling-dependent reporters and that of the promoter of the connective tissue growth factor (CTGF) gene. Data suggest that Dll1icd upregulates CTGF promoter activity through both direct and indirect mechanisms. The direct mechanism is supported by co-immunoprecipitation of endogenous Smad2/3 proteins and Dll1 and by chromatin immunoprecipitation analyses that revealed the occupancy of Dll1icd on CTGF promot...

2011-01-01

72

Proteomic analysis of apoptosis induction in human lung cancer cells by recombinant MVL  

British Library Electronic Table of Contents (United Kingdom)

Lung cancer is still difficult to treat by current chemotherapeutic procedures. We recently found that MVL, an anti-HIV lectin from blue-green algae Microcystis viridis, also has antitumor activity. The objective of this study was to investigate apoptosis-inducing activity of recombinant MVL (R-MVL) and proteomic changes in A549 cells, and to identify the molecular pathways responsible for the anti-cancer action of R-MVL. We found that R-MVL induces A549 cells apoptosis in a dose-dependent manner by using MTT assay, fluorescent microscope (FM) and flow cytometry (FCM), and the IC50 was calculated to be 24.12??g/ml. Subsequently, 7 altered proteins in R-MVL-treated A549 cells were identified, including upregulated aldehyde dehydrogenase 1 and ?-actin, and five downregulated proteins: heat s...

2011-01-01

73

Cancers | Special Issue: Advances and Research Progress in Hepatocellular Carcinoma  

Wastenet

...comAbstract: Hepatocellular carcinoma (HCC), once thought to be a rare tumor in North America, is a rapidly increasing type of cancer in recent years in the United States. Current treatment modalities to halt the disease progression are only marginally effective. The mainstay treatment ...In addition, NM was shown to down-regulate urokinase plasminogen activator (by fibrin zymography) and up-regulate tissue inhibitors of metalloproteinases (by reverse zymography) in another HCC cell line, Sk-Hep-1. MMP-2 and MMP-9 activities were further modulated by cytokines, inducers and inhibitors, including NM. In ... Our results suggest that NM is an excellent candidate for therapeutic use in the treatment HCC by inhibiting critical parameters in cancer development and progression, such as proliferation, invasion and metastasis, and by inducing apoptosis. Last update: 2 September 2011 JavaScript seems ...

74

Stochastic gene expression and its consequences  

UK PubMed Central (United Kingdom)

Gene expression is a fundamentally stochastic process, with randomness in transcription and translation leading to significant cell-to-cell variations in mRNA and protein levels. This variation...Full Text Available

2008-10-17

75

Molecular Cloning and Characterization of Three Novel Lysozyme-Like Genes, Predominantly Expressed in the Male ...  

Science.gov (United States)

... 041889 Molecular Cloning and Characterization of Three Novel Lysozyme-Like Genes, Predominantly Expressed in the Male Reproducti...

76

Localised breast cancers may have systemic influences on skin and hair  

UK PubMed Central (United Kingdom)

HypothesisBiomarkers, commonly expressed in breast cancer cells, may be correlated with their expression in breast skin of the same subjects.MethodsThe...Full Text Available

2007-02-01

77

Expression of cell proliferation and apoptosis biomarkers in pterygia and normal conjunctiva  

UK PubMed Central (United Kingdom)

PurposeTo analyze the expression of apoptosis and cell proliferation molecules in pterygium tissues of Chinese patients.MethodsThirty-three pterygia...Full Text Available

78

ERG Expression Levels in Prostate Tumors Reflect Functional ...  

Science.gov (United States)

... Title : ERG Expression Levels in Prostate Tumors Reflect Functional Status of the Androgen Receptor (AR) as a Consequence of Fusion of ERG ...

79

Cis-regulatory mutations in human disease  

UK PubMed Central (United Kingdom)

Cis-acting regulatory sequences are required for the proper temporal and spatial control of gene expression. Variation in gene expression is highly heritable and a significant determinant...Full Text Available

2009-07-01

86

Immunohistochemical expression of p63 in human prenatal tooth primordia  

DEFF Research Database (Denmark)

development, histochemical, human, malformation, p63 gene, tooth

2005-01-01

94

Selective changes of retroelement expression in human prostate cancer  

British Library Electronic Table of Contents (United Kingdom)

Retroelements constitute a large part of the human genome. These sequences are mostly silenced in normal cells, but genome-wide DNA hypomethylation in cancers might lead to their re-expression. Whether this re-expression really occurs in human cancers is largely unkown. We therefore investigated expression and DNA methylation of several classes of retroelements in human prostate cancer tissues and cell lines by quantitative reverse transcription-polymerase chain reaction and pyrosequencing, respectively. The most striking finding was strong and generalized increased expression of the HERV-K_22q11.23 provirus in cancers, including de novo expression of a spliced accessory Np9 transcript in some tumors. In parallel, DNA methylation in the long terminal repeat (LTR) decreased. Conversely, HER...

2011-01-01

95

Quercetin-induced downregulation of phospholipase D1 inhibits proliferation and invasion in U87 glioma cells  

British Library Electronic Table of Contents (United Kingdom)

Phospholipase D (PLD) has been recognized as a regulator of cell proliferation and tumorigenesis, but little is known about the molecules regulating PLD expression. Thus, the identification of small molecules inhibiting PLD expression would be an important advance in PLD-mediated physiology. Quercetin, a ubiquitous bioactive flavonoid, is known to inhibit proliferation and induce apoptosis in a variety of cancer cells. In the present study, we examined the effect of quercetin on the expression of PLD in U87 glioma cells. Quercetin significantly suppressed the expression of PLD1 at the transcriptional level. Moreover, quercetin abolished the protein expression of PLD1 in a time and dose-dependent manner, as well as inhibited PLD activity. Quercetin suppressed NFkB-induced PLD1 expression vi...

2011-01-01

96

Reactive oxygen species production and Bax/Bcl-2 regulation in honokiol-induced apoptosis in human hepatocellular carcinoma SMMC-7721 cells.  

Science.gov (United States)

We investigated possible mechanism(s) where honokiol induces apoptosis in human hepatocellular carcinoma SMMC-7721 cells. MTT assay showed that honokiol has strong inhibition on SMMC-7721 cells in a dose-dependent manner. SMMC-7721 cells after honokiol treatment display morphological characteristics such as cell shrinkage, detachment from the culture plate, formation of apoptotic bodies, change to a round shape, and marked nuclear condensation and fragmentation after 32258 staining. Cell apoptosis was measured by Annexin-V/PI staining and alternatively, by the subG0/G1 percentage of the cell cycle analysis followed by FACS. An obvious loss of ??(m) and a quick burst of ROS was detected when honokiol reached 4?g/ml, which was coincident with the high apoptosis percentage in our previous research. Up-regulation of Bax and down-regulation of Bcl-2 were observed, suggesting that honokiol-induced apoptosis was associated with reactive oxygen species (ROS) production and ...

2009-03-17

97

Proteomic Analysis of Proteins Secreted by HepG2 Cells Treated with Butyl Benzyl Phthalate  

British Library Electronic Table of Contents (United Kingdom)

Proteomic changes in proteins secreted by human hepatocellular carcinomas (HepG2) cells exposed to butyl benzyl phthalate (BBP) were evaluated. HepG2 cells were treated with three different concentrations of BBP (0, 10, or 25 ?M) for 24 or 48 h. Following incubation, the cells were subjected to proteomic analysis using two different pI ranges (4-7 and 6-9) and large-size two-dimensional gel electrophoresis. Results showed resolution of a total of 2776 protein spots. Of these, 29, including 19 upregulated and 10 downregulated proteins, were identified by electrospray ionization-mass spectrometry-mass spectrometry (ESI-MS/MS). Among these, the identities of cystatin C, Rho guanine nucleotide dissociation inhibitor, gelsolin, DEK protein, Raf kinase inhibitory protein, triose phosphate ...

2010-01-01

98

Boron-Dependent Degradation of NIP5;1 mRNA for Acclimation to Excess Boron Conditions in Arabidopsis.  

Science.gov (United States)

Boron (B) is an essential plant micronutrient that is toxic at higher levels. NIP5;1 is a boric acid channel required for B uptake and growth under B deficiency. Accumulation of the NIP5;1 transcript is upregulated under B deficiency in Arabidopsis thaliana roots. To elucidate the mechanism of regulation, the 5' untranslated region (UTR) of NIP5;1 was tested for its ability to confer B-dependent regulation using ?-glucuronidase and green fluorescent protein as reporters. This analysis showed that the 5' UTR was involved in NIP5;1 transcript accumulation in response to B conditions. We also found that high-B conditions trigger NIP5;1 mRNA degradation and that the sequence from +182 to +200 bp in the 5' UTR is required for this mRNA destabilization. In the nip5;1-1 mutant background, a NIP5;1 complementation construct without the 5' UTR produced high levels of mRNA accumulation, increased B concentrations in tissues, and reduced growth under high-B conditions. These ...

2011-09-01

99

Transcription regulation of caspase-1 by R393 of HIPPI and its molecular partner HIP-1  

UK PubMed Central (United Kingdom)

Earlier we have shown that exogenous expression of HIPPI, a molecular partner of Huntingtin interacting protein HIP-1, induces apoptosis and increases expression of caspases-1, -8 and -10 in HeLa and...Full Text Available

2010-01-01

100

The complexity of gene expression dynamics revealed by permutation entropy  

UK PubMed Central (United Kingdom)

BackgroundHigh complexity is considered a hallmark of living systems. Here we investigate the complexity of temporal gene expression patterns using the concept of Permutation Entropy...Full Text Available

101

The URE2 protein regulates nitrogen catabolic gene expression through the GATAA-containing UASNTR element in Saccharomyces cerevisiae.  

UK PubMed Central (United Kingdom)

Many of the gene products that participate in nitrogen metabolism are sensitive to nitrogen catabolite repression (NCR), i.e., their expression is decreased to low levels when readily used nitrogen...Full Text Available

1994-12-01

102

Specific expression profile and prognostic significance of peroxiredoxins in grade II-IV astrocytic brain tumors  

UK PubMed Central (United Kingdom)

BackgroundPeroxiredoxins (Prxs) have recently been suggested to have a role in tumorigenesis.MethodsWe studied the expression of Prx I-VI and their...Full Text Available

103

Site specific effects of anosmia and cloacal gland anesthesia on Fos expression induced in male quail brain by sexual behavior  

UK PubMed Central (United Kingdom)

In rats, expression of the immediate early gene, c-fos observed in the brain following male copulatory behavior relates mostly to the detection of olfactory information originating...Full Text Available

2008-12-01

104

Sex determines the expression level of one third of the actively expressed genes in bovine blastocysts  

UK PubMed Central (United Kingdom)

Although genetically identical for autosomal Chrs (Chr), male and female preimplantation embryos could display sex-specific transcriptional regulation. To illustrate sex-specific differences at the...Full Text Available

2010-02-23

105

Sequence and expression of the zebrafish alpha-actinin gene family reveals conservation and diversification among vertebrates  

UK PubMed Central (United Kingdom)

alpha-actinins are actin microfilament crosslinking proteins. Vertebrate actinins fall into two classes: the broadly-expressed actinins 1 and 4 (actn1 and actn4)...Full Text Available

2009-11-01

106

Robust consensus clustering for identification of expressed genes linked to malignancy of human colorectal carcinoma  

UK PubMed Central (United Kingdom)

Previous studies have been conducted in gene expression profiling to identify groups of genes that characterize the colorectal carcinoma disease. Despite the success of previous attempts to identify...Full Text Available

107

Rhythmic expression of an egr-1 transgene in rats distinguishes two populations of photoreceptor cells in the retinal outer nuclear layer  

UK PubMed Central (United Kingdom)

PurposeNocturnal rhythms of gene expression in the retina are known to be both darkness- and circadian clock-dependent, but their role and cellular location are not well defined....Full Text Available

108

Reduced thermal sensitivity and Nav1.8 and TRPV1 channel expression in sensory neurons of aged mice  

UK PubMed Central (United Kingdom)

Sensory neurons in aging mammals undergo changes in anatomy, physiology and gene expression that correlate with reduced sensory perception. In this study we compared young and aged mice to identify...Full Text Available

2006-06-01

109

Recent Applications of DNA Microarray Technology to Toxicology and Ecotoxicology  

UK PubMed Central (United Kingdom)

Gene expression is a unique way of characterizing how cells and organisms adapt to changes in the external environment. The measurements of gene expression levels upon exposure to a chemical can be...Full Text Available

2006-01-01

110

Prostaglandin H2 synthase-1 and -2 expression in guinea pig gestational tissues during late pregnancy and parturition  

UK PubMed Central (United Kingdom)

Increased intrauterine prostaglandin (PG) production is crucial for the initiation of parturition. To investigate the mechanisms controlling intrauterine PG synthesis, we examined the expression of...Full Text Available

2005-12-15

111

Prognostic evaluation of metallothionein expression in human colorectal neoplasms.  

UK PubMed Central (United Kingdom)

AIM: To investigate the role of metallothionein in colorectal tumours and the possible relation with other factors associated with tumour progression: expression of cathepsin D (CD), CD44, p53, Rb,...Full Text Available

1999-12-01

112

Parent-Child Interactions in Relation to Critical and Emotionally Overinvolved Expressed Emotion (EE): Is EE a Proxy for Behavior?  

UK PubMed Central (United Kingdom)

Expressed emotion measures, encompassing dimensions of criticism (CRIT), and emotional overinvolvement (EOI) are increasingly being used to assess the parent–child relationship in child...Full Text Available

2004-02-01

113

PKC expression is regulated by dietary K intake and mediates internalization of SK channels in the CCD  

UK PubMed Central (United Kingdom)

We have used Western blot analysis and immunocytochemistry to determine the effect of dietary K intake on the expression of protein kinase C (PKC) isoforms in the kidney. Western blot has demonstrated...Full Text Available

2004-06-01

114

PET imaging of heat-inducible suicide gene expression in mice bearing head and neck squamous cell carcinoma xenografts  

UK PubMed Central (United Kingdom)

The ability to achieve tumor selective expression of therapeutic genes is an area that needs improvement for cancer gene therapy to be successful. One approach to address this is through the...Full Text Available

2009-02-01

115

Neuronatin: A New Inflammation Gene Expressed on the Aortic Endothelium of Diabetic Mice  

UK PubMed Central (United Kingdom)

OBJECTIVE—Identification of arterial genes and pathways altered in obesity and diabetes.RESEARCH DESIGN AND METHODS—Aortic gene expression profiles of...Full Text Available

2008-10-01

116

Neoplastic transformation of prostatic and urogenital epithelium by the polyoma virus middle T gene.  

UK PubMed Central (United Kingdom)

Male transgenic mice expressing the polyomavirus middle T (PyV-MT) gene exhibited growth and developmental abnormalities in prostatic and other urogenital epithelium. Expression of PyV-MT was directed...Full Text Available

1996-10-01

117

NOTCH3 expression is induced in mural cells through an autoregulatory loop that requires endothelial-expressed JAGGED1  

UK PubMed Central (United Kingdom)

Endothelial cells and mural cells (smooth muscle cells, pericytes, or fibroblasts) are known to communicate with one another. Their interactions not only serve to support fully functional blood...Full Text Available

2009-02-27

118

Molecular and clinico-pathological markers in rectal cancer: a tissue micro-array study  

UK PubMed Central (United Kingdom)

AimsThe aims of the study were to study the effect of pre-operative treatment on the expression of tumour-related proteins and to correlate the expression of these...Full Text Available

2009-02-01

119

Modulation of Expression of the ToxR Regulon in Vibrio cholerae by a Member of the Two-Component Family of Response Regulators  

UK PubMed Central (United Kingdom)

The ToxRS system in Vibrio cholerae plays a central role in the modulation of virulence gene expression in response to environmental stimuli. An integration of multiple signalling inputs...Full Text Available

1998-12-01

120

Modulation of Aire regulates the expression of tissue-restricted antigens  

UK PubMed Central (United Kingdom)

AbstractIntrathymic expression of tissue-restricted antigens (TRAs) has been viewed as the key element in the induction of central tolerance and recently, a central role for the autoimmune...Full Text Available

2008-01-01

121

Mechanisms of confluence-dependent expression of CD26 in colon cancer cell lines  

UK PubMed Central (United Kingdom)

BackgroundCD26 (dipeptidyl peptidase IV, DPPIV) is a 110 kDa surface glycoprotein expressed in most normal tissues, and is a potential novel therapeutic target for selected cancers....Full Text Available

122

Linking Gene Expression and Functional Network Data in Human Heart Failure  

UK PubMed Central (United Kingdom)

BackgroundGene expression profiling and the analysis of protein-protein interaction (PPI) networks may support the identification of disease bio-markers and potential drug targets....Full Text Available

123

Leptin receptor gene expression and number in the brain are regulated by leptin level and nutritional status  

UK PubMed Central (United Kingdom)

Hormone potency depends on receptor availability, regulated via gene expression and receptor trafficking. To ascertain how central leptin receptors are regulated, the effects of leptin challenge, high-fat...Full Text Available

2009-07-15

124

Lameness, Activity Time-Budgets, and Estrus Expression in Dairy Cattle  

UK PubMed Central (United Kingdom)

The aim of the present study was to identify specific behavioral patterns that contribute to diminished estrus expression in lame cows. Behavioral scan and focal sampling were used to examine...Full Text Available

2008-12-01

125

Intrinsic expression of host genes and intronic miRNAs in prostate carcinoma cells  

UK PubMed Central (United Kingdom)

BackgroundRecent data show aberrant and altered expression of regulatory noncoding micro (mi) RNAs in prostate cancer (PCa). A large number of miRNAs are encoded in organized intronic...Full Text Available

126

Insecticidal properties of genetically engineered baculoviruses expressing an insect juvenile hormone esterase gene.  

UK PubMed Central (United Kingdom)

Exploring the possibility of enhancing the properties of baculoviruses as biological control agents of insect pests, we tested the effect of expressing an insect gene (jhe) encoding juvenile hormone...Full Text Available

1992-05-01

127

Indoleamine 2,3-dioxygenase-expressing leukemic dendritic cells impair a leukemia-specific immune response by inducing potent T regulatory cells  

UK PubMed Central (United Kingdom)

BackgroundThe immunoregulatory enzyme indoleamine 2,3-dioxygenase, which catalyzes the conversion of tryptophan into kynurenine, is expressed in a significant subset of patients...Full Text Available

2010-12-01

128

Increased expression of cholesterol transporter ABCA1 is highly correlated with severity of dementia in AD hippocampus  

UK PubMed Central (United Kingdom)

To gain insight into ATP-binding cassette transporter A1 (ABCA1) function and its potential role in AD pathology, we analyzed the expression of the cholesterol transporter ABCA1...Full Text Available

2010-03-08

129

Immature cell populations and an erythropoiesis gene-expression signature in systemic juvenile idiopathic arthritis: implications for pathogenesis  

UK PubMed Central (United Kingdom)

IntroductionPrevious observations suggest that active systemic juvenile idiopathic arthritis (sJIA) is associated with a prominent erythropoiesis gene-expression signature. The aim...Full Text Available

2010-01-01

130

Identification of Achaete-scute complex-like 1 (ASCL1) target genes and evaluation of DKK1 and TPH1 expression in pancreatic endocrine tumours  

UK PubMed Central (United Kingdom)

BackgroundASCL1 role in pancreatic endocrine tumourigenesis has not been established. Recently it was suggested that ASCL1 negatively controls expression of the...Full Text Available

131

Identification and expression of differentially expressed genes in the hard clam, Mercenaria mercenaria, in response to quahog parasite unknown (QPX)  

UK PubMed Central (United Kingdom)

BackgroundThe hard clam, Mercenaria mercenaria, has been affected by severe mortality episodes associated with the protistan parasite QPX (Quahog Parasite Unknown)...Full Text Available

132

Gene expression analysis of interferon ? in laser capture microdissected cervical epithelium  

UK PubMed Central (United Kingdom)

Optimal sample handling techniques for tissue preparation and storage, RNA extraction and quantification, and target gene detection are crucial for reliable gene expression analysis. Methods...Full Text Available

2008-10-01

133

Fusion expression of pedA gene to obtain biologically active pediocin PA-1 in Escherichia coli *  

UK PubMed Central (United Kingdom)

Two heterologous expression systems using thioredoxin (trxA) as a gene fusion part in Escherichia coli were developed to produce recombinant pediocin PA-1. Pediocin...Full Text Available

2011-01-01

134

Full genome gene expression analysis of the heat stress response in Drosophila melanogaster  

UK PubMed Central (United Kingdom)

The availability of full genome sequences has allowed the construction of microarrays, with which screening of the full genome for changes in gene expression is possible. This method can provide a wealth...Full Text Available

2005-10-01

135

Expression of embryonic hemoglobin genes in. cap alpha. -thalassemic and in. beta. -duplication mice  

Science.gov (United States)

The results of a study of the expression of embryonic hemoglobin genes in mice which show an imbalance of alpha and non-alpha chain synthesis are reported. (ACR)

1979-01-01

136

Expression of calbindin-D28k and its regulation by estrogen in the human endometrium during the menstrual cycle  

UK PubMed Central (United Kingdom)

Human endometrium resists embryo implantation except during the 'window of receptivity'. A change in endometrial gene expression is required for the development of receptivity. Uterine calbindin-D28k...Full Text Available

137

Expression of SV40 virus large T antigen by recombinant adenoviruses activates proliferation of corneal endothelium in vitro.  

UK PubMed Central (United Kingdom)

Infection with the Ad5-SVR4 virus was used to introduce the large T antigen encoding region of the SV40 virus into bovine and human corneal endothelial cells. Expression of large T antigen occurred...Full Text Available

1993-04-01

138

Expression of Fc receptors is suppressed in alveolar macrophages from patients with sarcoidosis.  

UK PubMed Central (United Kingdom)

To study the expression of Fc receptors in human alveolar macrophages (AM), the cells were collected from 12 healthy controls and 22 patients with sarcoidosis and the activity involved in binding to...Full Text Available

1988-09-01

139

Expression and Characterization of the Mycobacterium tuberculosis Serine/Threonine Protein Kinase PknB  

UK PubMed Central (United Kingdom)

PknB is a member of the newly discovered eukaryotic-like protein serine/threonine kinase (PSTK) family of proteins. The pknB gene was cloned and expressed in Escherichia coli....Full Text Available

1999-11-01

140

Establishment and expression of cellular polarity in fucoid zygotes.  

UK PubMed Central (United Kingdom)

Zygotes of fucoid algae have long been studied as a paradigm for cell polarity. Polarity is established early in the first cell cycle and is then expressed as localized growth and invariant cell division....Full Text Available

1992-06-01

141

Essential Role of Phox2b-Expressing Ventrolateral Brainstem Neurons in the Chemosensory Control of Inspiration and Expiration  

UK PubMed Central (United Kingdom)

Phox2b-expressing neurons of the retrotrapezoid nucleus (RTN) located in the ventrolateral brainstem are sensitive to changes in PCO2/pH, have excitatory projections...Full Text Available

2010-09-15

142

Endogenous expression of HrasG12V induces developmental defects and neoplasms with copy number imbalances of the oncogene  

UK PubMed Central (United Kingdom)

We developed mice with germline endogenous expression of oncogenic Hras to study effects on development and mechanisms of tumor initiation. They had high perinatal mortality, abnormal...Full Text Available

2009-05-12

143

Effect of pH and Temperature on Denitrification Gene Expression and Activity in Pseudomonas mandelii?  

UK PubMed Central (United Kingdom)

Pseudomonas mandelii liquid cultures were studied to determine the effect of pH and temperature on denitrification gene expression, which was quantified by quantitative reverse transcription-PCR....Full Text Available

2009-06-01

144

Differential expression of prostaglandin-H synthase isoenzymes in normal and activated keratinocytes in vivo and in vitro.  

UK PubMed Central (United Kingdom)

Normal mouse epidermis constitutively expresses prostaglandin-H synthase 1 (PGHS-1) but no PGHS-2. Acute inflammation and epidermal hyperplasia, (hyperplastic transformation), as evoked in adult mouse...Full Text Available

1995-07-01

145

Differential Regulation of PDE5 Expression in Left and Right Ventricles of Feline Hypertrophy Models  

UK PubMed Central (United Kingdom)

BackgroundThough long known to affect smooth muscle biology, recent studies indicate that phosphodiesterase 5 (PDE5) is also expressed in myocardium. Recognizing that the regulation...Full Text Available

146

Dexamethasone and nitric oxide synthase gene expression in brain.  

UK PubMed Central (United Kingdom)

Systemic administration of lipopolysaccharide (LPS), which causes endotoxemia and systemic inflammation, has been reported to induce expression of the gene for type II inducible nitric oxide synthase...Full Text Available

1997-03-01

147

Development and evaluation of a virtual microscopy application for automated assessment of Ki-67 expression in breast cancer  

UK PubMed Central (United Kingdom)

BackgroundThe aim of the study was to develop a virtual microscopy enabled method for assessment of Ki-67 expression and to study the prognostic value of the automated analysis in...Full Text Available

148

Defective major histocompatibility complex class I expression on lymphoid cells in autoimmunity.  

UK PubMed Central (United Kingdom)

Lymphocytes from patients with insulin-dependent diabetes mellitus (IDDM), a chronic autoimmune disease, have recently been shown to have decreased surface expression of MHC class I antigens. Since...Full Text Available

1993-05-01

149

DIFFERENTIAL EXPRESSION OF HPA AXIS HOMOLOG IN THE SKIN  

UK PubMed Central (United Kingdom)

SummaryHuman skin expresses elements of the hypothalamo-pituitary-adrenal (HPA) axis including pro-opiomelanocortin (POMC), corticotropin releasing hormone (CRH), the CRH receptor-1...Full Text Available

2007-02-01

150

Coordination of PAD4 and HDAC2 in the regulation of p53 target gene expression  

UK PubMed Central (United Kingdom)

Histone Arg methylation and Lys acetylation have been found to cooperatively regulate the expression of p53 target genes. Peptidylarginine deiminase 4 (PAD4) is an enzyme that citrullinates...Full Text Available

2010-05-27

151

Cloning and expression of recombinant, functional ricin B chain.  

UK PubMed Central (United Kingdom)

The cDNA encoding the B chain of the plant toxin ricin has been cloned and expressed in monkey kidney COS-M6 cells. The recombinant B chain was detected by labeling the transfected cells with [35S]methionine...Full Text Available

1987-08-01

152

Clinical significance of Fas and FasL protein expression in gastric carcinoma and local lymph node tissues  

UK PubMed Central (United Kingdom)

AIM: To investigate the relation of Fas and Fas ligand (FasL) protein expression with carcinogenesis and metastasis of gastric carcinoma.METHODS: Immunohistochemistry was used to detect Fas and...Full Text Available

2010-03-14

153

Characterisation of the Expression of NMDA Receptors in Human Astrocytes  

UK PubMed Central (United Kingdom)

Astrocytes have long been perceived only as structural and supporting cells within the central nervous system (CNS). However, the discovery that these glial cells may potentially express receptors capable...Full Text Available

154

Characterisation of CYP3A gene subfamily expression in human gastrointestinal tissues.  

UK PubMed Central (United Kingdom)

The human CYP3A subfamily is of interest due to its multiplicity, activity toward known carcinogens, and extrahepatic expression. In situ hybridisation analysis of formalin fixed, routinely processed...Full Text Available

1995-02-01

155

Biotin binders selected from a random peptide library expressed on phage.  

UK PubMed Central (United Kingdom)

Recombinant biotin-binding phages were affinity-selected from a random peptide library expressed on the surface of filamentous phage. Phage binding to biotinylated proteins was half-maximally inhibited...Full Text Available

1993-08-01

156

Antisense imaging of gene expression in the brain in vivo  

UK PubMed Central (United Kingdom)

Antisense radiopharmaceuticals could be used to image gene expression in the brain in vivo, should these polar molecules be made transportable through the blood–brain barrier....Full Text Available

2000-12-19

157

A supervised approach for predicting patient survival with gene expression data  

UK PubMed Central (United Kingdom)

Rapid development in genomics in recent years has allowed the simultaneous measurement of the expression levels of thousands of genes using DNA microarrays. This has offered tremendous potential...Full Text Available

2010-01-01

158

A highly conserved regulatory element controls hematopoietic expression of GATA-2 in zebrafish  

UK PubMed Central (United Kingdom)

BackgroundGATA-2 is a transcription factor required for hematopoietic stem cell survival as well as for neuronal development in vertebrates. It has been shown that specific expression...Full Text Available

159

A Predictive Risk Probability Approach for Microarray Data with Survival as an Endpoint  

UK PubMed Central (United Kingdom)

Gene expression profiling has played an important role in cancer risk classification and has shown promising results. Since gene expression profiling often involves determination of a set of...Full Text Available

2008-01-01

160

Update of the Navy Contract Writing Guide  

Science.gov (United States)

... These requirements may be expressed in terms of MIL-STD-2073-1, DoD Material Procedures for Development and Application of Packaging ...

2004-06-01

163

The Measurement of Air-Sea Fluxes  

Science.gov (United States)

... The micrometeorological community often expresses these relations in resistance law terms (Garratt and Hicks, 1973; Hicks et al., 1985) ...

1990-10-09

165

Feynman-Wiener path integral representation for scalar advected diffusion  

Energy Technology Data Exchange (ETDEWEB)

We write a path-integral expression for the Green function of a advected scalar on a fluid flux. (author)

2000-07-01

167

Regulatory circuit for responses of nitrogen catabolic gene expression to the GLN3 and DAL80 proteins and nitrogen catabolite repression in Saccharomyces cerevisiae.  

UK PubMed Central (United Kingdom)

We demonstrate that expression of the UGA1, CAN1, GAP1, PUT1, PUT2, PUT4, and DAL4 genes is sensitive to nitrogen catabolite repression. The expression of all these genes, with the exception of UGA1...Full Text Available

1993-01-01

168

Prolactin and Its Receptor Are Expressed in Murine Hair Follicle Epithelium, Show Hair Cycle-Dependent Expression, and Induce Catagen  

UK PubMed Central (United Kingdom)

Here, we provide the first study of prolactin (PRL) and prolactin receptor (PRLR) expression during the nonseasonal murine hair cycle, which is, in contrast to sheep, comparable with the human scalp...Full Text Available

2003-05-01

169

High-cell Density Shake-flask Expression and Rapid Purification of the Large Fragment of Thermus aquaticus DNA Polymerase I Using a New Chemically and Temperature Inducible Expression Plasmid in Escherichia coli*  

UK PubMed Central (United Kingdom)

We have developed a new expression vector, pcIts ind+, based upon the powerful rightward promoter of bacteriophage lambda, which is controlled by a temperature-sensitive...Full Text Available

2009-02-01

170

The Significance of PITX2 Overexpression in Human Colorectal Cancer  

British Library Electronic Table of Contents (United Kingdom)

Purpose The paired-like homeodomain transcription factor 2 (PITX2) gene encodes a transcription factor controlled by the WNT/Dvl/CTNNB1 and Hedgehog/TGFB pathways in the pathogenesis of colorectal cancer (CRC). Although PITX2 is reportedly involved in various functions, including tissue development by controlling cell growth, its significance in CRC remains unclear. We report our findings regarding abnormal PITX2 expression in human CRC. Methods PITX2 expression was evaluated in 5 human CRC cell lines and 92 primary CRC samples. Cell growth was evaluated after inhibition of PITX2 expression or after exogenous introduction of PITX2. Results PITX2 expression was seen in all the five CRC cell lines. The study of tissue samples indicated that PITX2 expression was significantly higher in cancer...

2011-01-01

171

Cyclin-Dependent Kinase Inhibitor p16 and p21 Expression, and Cell Cycle Change in Human Lens Epithelial Cell Line SRA 01/04 following Contact Inhibition in Normal Culture  

British Library Electronic Table of Contents (United Kingdom)

Abstract Purpose: To describe the pattern of expression of the cyclin-dependent kinase inhibitors (CDKIs) p16, p21 and p27, and the cell cycle in SRA 01/04 cells relative to contact inhibition. Methods: SRA 01/04 cells were grown to overconfluence under normal conditions. At various phases of the cell growth, cells were assayed by flow cytometry and Western blotting for the expression of CDKIs. Results: Expression of p16 was detected from early logarithmic growth to stationary phases, during which the number of cells in G0/G1 increased from 46 to 69%. Expression of p21 was detected only during the overgrowth phase, when 60% of the cells were in G0/G1. Expression of p27 was not observed in SRA 01/04 cells. Conclusions: p16 expression was likely mediated by G0/G1 arrest to induce contact inh...

2011-01-01

172

Expression of fully functional tetrameric human hemoglobin in Escherichia coli  

International Nuclear Information System (INIS)

Synthesis genes encoding the human #alpha#- and #beta#-globin polypeptides have been expressed from a single operon in Escherichia coli. The #alpha#- and #beta#-globin polypeptides associate into soluble tetramers, incorporate heme, and accumulate to >5% of the total cellular protein. Purified recombinant hemoglobin has the correct stoichiometry of #alpha#- and #beta#-globin chains and contains a full complement of heme. Each globin chain also contains an additional methionine as an extension to the amino terminus. The recombinant hemoglobin has a C_4 reversed-phase HPLC profile essentially identical to that of human hemoglobin A_0 and comigrates with hemoglobin A_0 on SDS/PAGE. The visible spectrum and oxygen affinity are similar to that of native human hemoglobin A_0. The authors have also expressed the #alpha#- and #beta#-globin genes separately and found that the expression of the #alpha#-globin gene alone results in ...

173

Ectopic expression of Cux1 is associated with reduced p27 expression and increased apoptosis during late stage cyst progression upon inactivation of Pkd1 in collecting ducts  

British Library Electronic Table of Contents (United Kingdom)

Abstract Polycystic kidney diseases (PKD) are inherited disorders characterized by fluid-filled cysts primarily in the kidneys. We previously reported differences between the expression of Cux1, p21, and p27 in the cpk and Pkd1 null mouse models of PKD. Embryonic lethality of Pkd1 null mice limits its study to early stages of kidney development. Therefore, we examined mice with a collecting duct specific deletion in the Pkd1 gene. Cux1 was ectopically expressed in the cyst lining epithelial cells of newborn, P7 and P15 Pkd1CD mice. Cux1 expression correlated with cell proliferation in early stages of cystogenesis, however, as the disease progressed, fewer cyst lining cells showed increased cell proliferation. Rather, Cux1 expression in late stage cystogenesis was associated with increased ...

2011-01-01

174

Spin-Lattice Relaxation in Metal-Organic Platinum; 3, Complexes  

CERN Document Server

The dynamics of spin-lattice relaxation (slr) of metal-organic Pt(II) compounds is studied. Often, such systems are characterized by pronounced zero-field splittings (zfs) of the lowest-lying triplets. Previous expressions for the Orbach slr process do not allow to treat such splitting patterns properly. We discuss the behavior of a modified Orbach expression for a model system and present results of a fit of the temperature dependence of the spin-lattice relaxation rate of Pt(2-thpy)$_2$ based on the modified expression.

1999-01-01

175

On the Expressive Power of Polyadic Synchronisation in ?- calculus  

DEFF Research Database (Denmark)

We extend the pi-calculus with polyadic synchronisation, a generalisation of the communication mechanism which allows channel names to be composite. We show that this operator embeds nicely in the theory of pi-calculus, we suggest that it permits divergence-free encodings of distributed calculi, and we show that a limited form of polyadic synchronisation can be encoded weakly in pi-calculus. After showing that matching cannot be derived in pi-calculus, we compare the expressivity of polyadic synchronisation, mixed choice and matching. In particular we show that the degree of synchronisation of a language increases its expressive power by means of a separation result in the style of Palamidessi's result for mixed choice.

2002-01-01

176

Analytic description of X-ray fluorescence intensity as a function of the particle size in powder samples and pulp upon X-ray fluorescence analysis  

International Nuclear Information System (INIS)

Analytic expression is derived for X-ray fluorescence dependence on the particle size of powder and slurry media. The expression is obtained for a model of powder medium containing particles of different size and random distribution in the bulk of the sample. Limiting cases of homogeneous and slurry-like media are considered and expressions for calculation of the fluorescence intensity are derived. The results reasonably match the experiment for binary powder mixtures and thus provide evaluation of the powder particle size on the fluorescence intensity for multicomponent polydisperse powder medium

2007-11-01

177

Variability in Melanoma Metalloproteinase Expression Profiling  

UK PubMed Central (United Kingdom)

The proteolytic activities of a disintegrin and metalloproteinase (ADAM); a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS), and matrix metalloproteinase (MMP) families play important...Full Text Available

2010-12-01

178

Unmasking Stem/Progenitor Cell Properties in Differentiated ...  

Science.gov (United States)

... In addition to changes in BrdU, we also observed transient changes in p63 gene expression in the myoepithelial/stem cell layer. ...

2007-08-01

179

Unified Analysis of the Average Gaussian Error Probability for a Class of Fading Channels  

CERN Document Server

This paper focuses on the analysis of average Gaussian error probabilities in certain fading channels, i.e. we are interested in E[Q((p {\\gamma})^(1/2))] where Q(.) is the Gaussian Q-function, p is a positive real number and {\\gamma} is a nonnegative random variable. We present a unified analysis of the average Gaussian error probability, derive a compact expression in terms of the Lauricella FD^(n) function that is applicable to a broad class of fading channels, and discuss the relation of this expression and expressions of this type recently appeared in literature. As an intermediate step in our derivations, we also obtain a compact expression for the outage probability of the same class of fading channels. Finally, we show how this unified analysis allows us to obtain novel performance analytical results.

2011-01-01

180

Tumor necrosis factor-? is associated with positive lymph node status in patients with recurrence of colorectal cancer?indications for anti-TNF-? agents in cancer treatment  

British Library Electronic Table of Contents (United Kingdom)

Introduction The progressive growth of malignancies is accompanied by a decline in the immune response through mechanisms which are poorly understood. Apoptosis and induction of inflammation by tumor released cytokines as tumor escape mechanisms have been proposed to play an important role in colorectal carcinogenesis. Methods Expression of Tumor necrosis factor-alpha (TNF-?) was analyzed in colorectal cancer specimen and the cancer cell line HT-29 by immunohistochemistry and RT-PCR. TNF-? expression on protein and mRNA level were correlated with clinical characteristics and impact on survival. TNFR-1 was co-labelled with TNF-? and CD8+ cytotoxic T cells in immunofluorescence double staining experiments. Results: 94% (n?=?98/104) of the patients with CRC expressed TNF-?. High TNF-? express...

2011-01-01

181

The role of fatty acid desaturases in epidermal metabolism  

UK PubMed Central (United Kingdom)

The lipid composition of skin is important to a variety of functions served by this organ. Therefore, skin expresses multiple enzymes that synthesize and metabolize lipids. An important class of lipid...Full Text Available

2011-04-01

182

The expression pattern of scygonadin during the ontogenesis of Scylla paramamosain predicting its potential role in reproductive immunity  

British Library Electronic Table of Contents (United Kingdom)

The antimicrobial peptide scygonadin (Scy) was first isolated from the gonad of Scylla serrata and its gene is predominantly expressed in the ejaculatory duct of adult males. Thus, its function was predicted to be associated with reproductive immunity, but this is still unclear and needs further investigation. In our study, the expression pattern of Scy at different developmental stages of both male and female S. paramamosain was investigated, so that the potential function of this peptide could be examined. Using real-time quantitative PCR, Scy mRNA transcripts were demonstrated obviously in the vulnerable embryos and larvae-zoea I but very weakly detected in the larvae-zoea III, megalops and juveniles. The gene expression pattern showed a decreasing trend during the early developmental s...

2011-01-01

184

Significance of Aurora B overexpression in hepatocellular carcinoma. Aurora B Overexpression in HCC  

UK PubMed Central (United Kingdom)

BackgroundTo investigate the significance of Aurora B expression in hepatocellular carcinoma (HCC).MethodsThe Aurora B and Aurora...Full Text Available

185

Selective downregulation of retinoic acid-inducible gene I within the intestinal epithelial compartment in crohn's disease  

British Library Electronic Table of Contents (United Kingdom)

AbstractBackground: A defective innate immune response may contribute to the pathogenesis of Crohn's disease (CD) and ulcerative colitis (UC). Employing a global gene expression analysis, this study was aimed at identifying specifically regulated genes within the epithelial compartment in inflammatory bowel disease (IBD). Methods: The epithelial fraction of human ileal mucosa samples from surgical specimens was obtained by laser microdissection. Gene expression was examined by global expression profiling (n = 18, Affymetrix), quantitative reverse-transcription polymerase chain reaction (RT-PCR) (n = 35), immunoblot analysis (n = 9), and immunohistochemistry (n = 25). Results: Global expression profiling revealed a pronounced downregulation of the retinoic acid-inducible gene I (RIG-I) with...

2011-01-01

186

Role of Fgf receptor 2c in adipocyte hypertrophy in mesenteric white adipose tissue  

British Library Electronic Table of Contents (United Kingdom)

Fgf receptor 2c (Fgfr2c) was expressed in mature adipocytes of mouse white adipose tissue (WAT). To examine the role of Fgfr2c in mature adipocytes, we generated adipocyte-specific Fgfr2 knockout (Fgfr2 CKO) mice. The hypertrophy impairment of adipocytes in the mesenteric WAT but not in the subcutaneous WAT and decreased plasma free fatty acid (FFA) levels were observed in Fgfr2 CKO mice. Although the expression of genes involved in adipocyte differentiation and lipid metabolism in the mesenteric WAT was essentially unchanged, the expression of uncoupling protein 2 potentially involved in energy dissipation was significantly increased. Among potential Fgf ligands for Fgfr2c, Fgf9 was preferentially expressed in the mesenteric WAT. The present findings indicate that Fgfr2c potentially activ...

2008-01-01

187

Ras activation of genes: Mob-1 as a model.  

UK PubMed Central (United Kingdom)

The ras oncogenes function by indirectly controlling expression of a subset of yet-undefined genes that are crucial for cell growth and differentiation. In a differential display strategy, numerous...Full Text Available

1994-12-20

189
191

Physiologic changes during growth and development.  

UK PubMed Central (United Kingdom)

To express growth-related changes in physiologic or other functions in forms usable for kinetic modeling, we are interested in identifying regular relationships that take the form of simple mathematical...Full Text Available

1994-12-01

192

Overexpression of MAD2 predicts clinical outcome in primary lung cancer patients  

British Library Electronic Table of Contents (United Kingdom)

High-level expression of mitotic arrest defective protein 2 (MAD2), a central component of the spindle assembly checkpoint, has been observed in a variety of human malignancies. Aim of the present study was to observe the expression of MAD2 in human non-small-cell lung cancer (NSCLC) and explore its clinicopathologic significance and evaluate MAD2 expression as a prognostic marker. MAD2 transcript was found to be overexpressed in the great majority of lung cancers by semi-quantitative RT-PCR. A total of 358 NSCLCs were analyzed immunohistochemically on tissue microarrays. High-level MAD2 expression was observed in 26.3% (94 of 358 cases), and correlated with male sex (P=0.0002), tumor progression (pT status) (P=0.0009), visceral or parietal pleural invasion (P=0.0151), non-adenocarcinoma, ...

2011-01-01

193

Ovarian Gene Expression is Stable after Exposure to Trichloroethylene  

UK PubMed Central (United Kingdom)

Exposure of female rats to trichloroethylene (TCE), an environmental toxicant commonly found in ground and surface waters throughout the United States, reduces the fertilizability of oocytes...Full Text Available

2008-02-28

194

Norepinephrine represses the expression of toxA and the siderophore genes in Pseudomonas aeruginosa  

UK PubMed Central (United Kingdom)

Among the different extracellular virulence factors produced by Pseudomonas aeruginosa are exotoxin A (ETA) and the pyoverdine and pyochelin siderophores. Production of ETA...Full Text Available

2009-10-01

195

Molecular cloning and analysis of lymphokines. Volume 13  

Energy Technology Data Exchange (ETDEWEB)

These proceedings collect papers on the subject of lymphokines. Topics include: DNA-cloning of mouse and human lymphokine genes, inteferons, interleukins, gene expression, tumor necrosis factors, and recombinant DNA.

1987-01-01

196

Microarray-based gene expression profiles of silkworm brains  

UK PubMed Central (United Kingdom)

BackgroundMolecular genetic studies of Bombyx mori have led to profound advances in our understanding of the regulation of development. Bombyx mori brain,...Full Text Available

198

IGF 2 expression in 3T3 adipocytes in response to serum from hypophysectomized or diabetic swine  

Energy Technology Data Exchange (ETDEWEB)

Expression of IGF-2 and changes in its expression in response to systemic endocrine alterations have not been demonstrated for adipocytes. Adipocytes were induced to develop within cultures of 3T3-L1 cells using a medium containing 0.5mM isobutylmethylxanthine, 1uM insulin and 100ng hydrocortisone/ml for 48 hours of exposure. Cultures containing developing adipocytes were incubated with 10% pig serum and 1 uM insulin for several days. The resultant adipocyte cultures were then treated with either 10% pig serum, diabetic pig serum or hypophysectomized pig serum in DMEM for 48 hours. Adipocytes within the cultures were separated from undifferentiated cells using percoll density gradient centrifugation. Total RNA was isolated from adipocytes and dot blotted. Blots were probed with a {sup 32}P-cDNA probe for rat IGF-2. IGF-2 was expressed by the adipocytes and the pattern of expression showed specific ...

1990-02-26

199

Hypoxia decreases sclerostin expression and increases Wnt signaling in osteoblasts  

British Library Electronic Table of Contents (United Kingdom)

Mutations in sclerostin function or expression cause sclerosing bone dysplasias, involving decreased antagonism of Wnt/Lrp5 signaling. Conversely, deletion of the VHL tumor suppressor in osteoblasts, which stabilize HIF-a isoforms and thereby enables HIF-a/b-driven gene transcription, increases bone mineral content and cross-sectional area compared to wild-type controls. We examined the influence of cellular hypoxia (1% oxygen) upon sclerostin expression and canonical Wnt signaling. Osteoblasts and osteocytes cultured under hypoxia revealed decreased sclerostin transcript and protein, and increased expression and nuclear localization of activated b-catenin. Similarly, both hypoxia and the hypoxia mimetic DFO increased b-catenin gene reporter activity. Hypoxia and its mimetics increased exp...

2010-01-01

200

Hypothyroidism Enhances Tumor Invasiveness and Metastasis Development  

UK PubMed Central (United Kingdom)

BackgroundWhereas there is increasing evidence that loss of expression and/or function of the thyroid hormone receptors (TRs) could result in a selective advantage for tumor development,...Full Text Available

201

Gpnmb is a Melanoblast-Expressed, MITF-Dependent Gene  

UK PubMed Central (United Kingdom)

SUMMARYExpression profile analysis clusters Gpnmb with known pigment genes, Tyrp1, Dct, and Si. During development,...Full Text Available

2009-02-01

202

Global Transcriptional Responses of Fission Yeast to Environmental Stress  

UK PubMed Central (United Kingdom)

We explored transcriptional responses of the fission yeast Schizosaccharomyces pombe to various environmental stresses. DNA microarrays were used to characterize changes in expression...Full Text Available

2003-01-01

203

Genomic imprinting and the social brain  

UK PubMed Central (United Kingdom)

Genomic imprinting refers to the parent-of-origin-specific epigenetic marking of a number of genes. This epigenetic mark leads to a bias in expression between maternally and paternally inherited imprinted...Full Text Available

2006-12-29

205

Expression and regulation of the NALP3 inflammasome complex in periodontal diseases  

UK PubMed Central (United Kingdom)

Periodontitis is an infectious process characterized by inflammation affecting the supporting structures of the teeth. Porphyromonas gingivalis is a major oral bacterial species implicated...Full Text Available

2009-09-01

206

Endogenous expression of Hras(G12V) induces developmental defects and neoplasms with copy number imbalances of the oncogene.  

Science.gov (United States)

We developed mice with germline endogenous expression of oncogenic Hras to study effects on development and mechanisms of tumor initiation. They had high perinatal mortality, abnormal cranial dimensions, defective dental ameloblasts, and nasal septal deviation, consistent with some of the features of human Costello syndrome. These mice developed papillomas and angiosarcomas, which were associated with Hras(G12V) allelic imbalance and augmented Hras signaling. Endogenous expression of Hras(G12V) was also associated with a higher mutation rate in vivo. Tumor initiation by Hras(G12V) likely requires augmentation of signal output, which in papillomas and angiosarcomas is achieved via increased Hras-gene copy number, which may be favored by a higher mutation frequency in cells expressing the oncoprotein. PMID:19416908

2009-04-29

207

Coreference and Lexical Repetition: Mechanisms of Discourse Integration  

UK PubMed Central (United Kingdom)

The use of repeated expressions to establish coreference allows an investigation of the relationship between basic processes of word recognition and higher-level...Full Text Available

2007-06-01

208

Conditional Circadian Regulation of PHYTOCHROME A Gene Expression  

UK PubMed Central (United Kingdom)

The phytochrome photoreceptors and the circadian clock control many of the same developmental processes, in all organs and throughout the growth of Arabidopsis plants. Phytochrome A (phyA) provides...Full Text Available

2001-12-01

209

Comparative profiling of the transcriptional response to soybean cyst nematode infection of soybean roots by deep sequencing  

British Library Electronic Table of Contents (United Kingdom)

To gain insight into the changes in the transcriptome of soybean roots during soybean cyst nematode (SCN) infection, we conducted genome-wide gene expression profiling using serial analysis of gene expression (SAGE) combined with Solexa sequencing. More than 3 million tags were generated from the SCN-infected and uninfected roots, and 366941 and 314591 clean UniTags were obtained from SCN-infected and uninfected samples, respectively. In the SCN-infected sample, 48249 UniTags represented 18114 reference genes. In the uninfected control, 46290 UniTags represented 19323 reference genes. Comparison of tag frequencies identified 1405 genes that were expressed at greater levels in SCN-infected roots than in uninfected roots, and 1191 genes that were expressed at lower levels. Quantitative real-...

2011-01-01

210

Characterization of lymphocyte receptors for glycosaminoglycans.  

UK PubMed Central (United Kingdom)

This paper describes attempts to isolate and characterize glycosaminoglycan (GAG)-binding molecules on the surface of lymphocytes and lymphoma cell lines and relate their expression to splenic and lymph...Full Text Available

1991-02-01

211

Bioengineered bugs expressing oligosaccharide receptor mimics  

UK PubMed Central (United Kingdom)

Many microbial pathogens recognize oligosaccharides displayed on the surface of host cells as receptors for toxins and adhesins. These ligand-receptor interactions are critical for disease pathogenesis,...Full Text Available

2010-05-01

212

Association and expression study of synapsin III and schizophrenia  

UK PubMed Central (United Kingdom)

The synapsin III gene, SYN3, which belongs to the family of synaptic vesicle-associated proteins, has been implicated in the modulation of neurotransmitter...Full Text Available

2009-11-20

213

An oral nervous necrosis virus vaccine using Vibrio anguillarum as an expression host provides early protection  

British Library Electronic Table of Contents (United Kingdom)

Oral vaccination is the most desirable immunization method by which to prevent fish disease occurring at the early larval stage. We developed an Escherichia coli-based oral nervous necrosis virus (NNV) subunit vaccine and demonstrated its effectiveness in orange spotted grouper (Epinephelus coioides) fry. However, the incubation period was determined to be over 2weeks. To enhance the efficacy and shorten the incubation period, a safe and digestible biological adjuvant should be found. Vibrio anguillarum, a common marine bacterium with immune-stimulatory capability was selected as an expression host. An expression vector containing its heat shock protein 60 gene (groE) as an inducible promoter was constructed to express recombinant NNV coat protein as an antigen. The recombinant V. anguilla...

2011-01-01

214

The neuroendocrine hormone norepinephrine increases Pseudomonas aeruginosa PA14 virulence through the las quorum-sensing pathway.  

Science.gov (United States)

It has been proposed that the gastrointestinal tract environment containing high levels of neuroendocrine hormones is important for gut-derived Pseudomonas aeruginosa infections. In this study, we report that the hormone norepinephrine increases P. aeruginosa PA14 growth, virulence factor production, invasion of HCT-8 epithelial cells, and swimming motility in a concentration-dependent manner. Transcriptome analysis of P. aeruginosa exposed to 500 microM, but not 50 microM, norepinephrine for 7 h showed that genes involved in the regulation of the virulence determinants pyocyanin, elastase, and the Pseudomonas quinolone signal (PQS, 2-heptyl-3-hydroxy-4-quinolone) were upregulated. The production of rhamnolipids, which are also important in P. aeruginosa infections, was not significantly altered in suspension cultures upon exposure to 500 microM norepinephrine but decreased on semisolid surfaces. Swarming motility, a phenotype that is directly influenced by ...

2009-06-11

215

Role of E-cadherin in the induction of apoptosis of HPV16-positive CaSki cervical cancer cells during multicellular tumor spheroid formation.  

Science.gov (United States)

Multicellular tumor spheroids (MCTS) are three dimensional cell culture systems induced by suspension culture. MCTS are widely used in cancer research because of their similarity to solid tumors. CaSki cells are derived from a metastatic cervical cancer containing human papillomavirus 16 (HPV16). Cell death of CaSki cells in MCTS has been previously reported, and our model is used to better characterize the mechanisms of cell death of HPV16-positive keratinocytes. In this study, we found that apoptosis of CaSki cells was induced by suspension culture along with the formation of MCTS after 24 h of incubation. In suspended CaSki cells, monoclonal antibodies blocking E-cadherin function inhibited MCTS formation and suppressed suspension-induced apoptosis in a dose-dependent manner. Western blot for E-cadherin detected upregulation of the authentic 120 kDa band from MCTS of CaSki cells as well as a shorter 100 kDa band. Addition of EGF, whose receptor is known to form ...

2008-01-01

216

The spoIIE homolog of Epulopiscium sp. type B is expressed early in intracellular offspring development.  

Science.gov (United States)

Epulopiscium sp. type B is an enormous intestinal symbiont of the surgeonfish Naso tonganus. Intracellular offspring production in Epulopiscium shares features with endospore formation. Here, we characterize the spoIIE homolog in Epulopiscium. The timing of spoIIE gene expression and presence of interacting partners suggest that the activation of ?(F) occurs early in Epulopiscium offspring development. PMID:21398534

2011-03-11

217

The Phenomics and Expression Quantitative Trait Locus Mapping of Brain Transcriptomes Regulating Adaptive Divergence in Lake Whitefish Species Pairs (Coregonus sp.)  

UK PubMed Central (United Kingdom)

We used microarrays and a previously established linkage map to localize the genetic determinants of brain gene expression for a backcross family of lake whitefish species pairs (Coregonus sp.). Our...Full Text Available

2008-09-01

218

TGFB1-Induced Extracellular Expression of TGFBIp and Inhibition of TGFBIp Expression by RNA Interference in a Human Corneal Epithelial Cell Line  

UK PubMed Central (United Kingdom)

Purpose.To report the increased production of extracellular transforming growth factor β-induced protein (TGFBIp) by human corneal epithelial cells (HCECs) after induction...Full Text Available

2011-02-01

219

Regulation of expression of a soybean storage protein subunit gene. Progress report  

Energy Technology Data Exchange (ETDEWEB)

We have found that the methionine repression of the ..beta..-subunit gene expression is not due to degradation of the ..beta..-subunit but is due to an effect on synthesis of the ..beta..-subunit. The effect of methionine on the synthesis of the ..beta..-is due to an inhibition of ..beta..-subunit mRNA synthesis. 3 references, 1 figure.

1984-04-23

220

Quox-1, a quail homeobox gene expressed in the embryonic central nervous system, including the forebrain.  

UK PubMed Central (United Kingdom)

This paper reports the cloning and sequencing of a quail homeobox-containing gene, Quox-1, and its expression pattern in embryos from 3 to 6 days (E3 to E6) of development as determined by in situ hybridization....Full Text Available

1991-03-15

221

Pteromalus puparum venom impairs host cellular immune responses by decreasing expression of its scavenger receptor gene.  

Science.gov (United States)

Insect host/parasitoid interactions are co-evolved systems in which host defenses are balanced by parasitoid mechanisms to disable or hide from host immune effectors. Although there is a rich literature on these systems, parasitoid immune-disabling mechanisms have not been fully elucidated. Here we report on a newly discovered immune-disabling mechanism in the Pieris rapae/Pteromalus puparum host/parasitoid system. Because venom injections and parasitization suppresses host phagocytosis, we turned attention to the P. rapae scavenger receptor (Pr-SR), posing the hypothesis that P. puparum venom suppresses expression of the host Pr-SR gene. To test our hypothesis, we cloned a full-length cDNA of the Pr-SR. Multiple sequences alignment showed the deduced amino acid sequence of Pr-SR is similar to scavenger receptors of other lepidopterans. Bacterial and bead injections induced Pr-SR mRNA and protein expression, which peaked at 4h post-bead ...

2011-07-22

222

Protein expression in white spot syndrome virus infected Penaeus monodon fabricius.  

Science.gov (United States)

White spot syndrome virus (WSSV) is the causative agent of the white spot disease of shrimp. Penaeus monodon were captured from Muttukadu Estuary in Chennai, India, transported to the laboratory and maintained in an aerated system with continuous water circulation-biofiltration. WSSV-free P. monodon were challenged by feeding them only once with WSSV-infected tissues of P. monodon. Cumulative mortality (100%) of the infected individuals was determined. Tissues from infected and uninfected shrimp such as muscles, hepatopancreas, heart, gills and eye tissues (100mg of each) and haemolymph (50 microl) were subjected to SDS-PAGE. In infected muscle tissue, six newly expressed proteins were detected. In infected haemolymph, four new proteins and three intensely expressed high molecular weight proteins were observed. Three intensely expressed high molecular weight proteins were detected in infected heart tissue and two new ...

2005-06-01

223

Propofol induces ERK-dependant expression of c-Fos and Egr-1 in neuronal cells  

UK PubMed Central (United Kingdom)

This study explored the effects of propofol on c-Fos and Egr-1 in neuroblastoma (N2A) cells. We demonstrate that propofol induced the expression of c-Fos and Egr-1 within 30 and 60 min of exposure...Full Text Available

2009-05-06

224

Population-Level Retrospective Study of Neurologically Expressed Disorders in Ruminants before the Onset of Bovine Spongiform Encephalopathy (BSE) in Belgium, a BSE Risk III Country  

UK PubMed Central (United Kingdom)

A retrospective epidemiological study (n = 7,875) of neurologically expressed disorders (NED) in ruminants before the onset of the bovine spongiform encephalopathy epidemic...Full Text Available

2005-02-01

225

Plasmids for the cloning and expression of full-length double-stranded cDNAs under control of the SV40 early or late gene promoter.  

UK PubMed Central (United Kingdom)

Okayama and Berg (1) have recently described a technique for the high efficiency cloning of full-length dscDNAs. We have constructed eukaryotic expression vectors compatible both with this technique...Full Text Available

1983-10-25

226

Open Reading Frame all0601 from Anabaena sp. Strain PCC 7120 Represents a Novel Gene, cnaT, Required for Expression of the Nitrate Assimilation nir Operon  

UK PubMed Central (United Kingdom)

Expression of the nitrate assimilation nir operon in the filamentous, heterocyst-forming cyanobacterium Anabaena sp. strain PCC 7120 requires the action of both the...Full Text Available

2003-09-01

227

Multiway real-time PCR gene expression profiling in yeast Saccharomyces cerevisiae reveals altered transcriptional response of ADH-genes to glucose stimuli  

UK PubMed Central (United Kingdom)

BackgroundThe large sensitivity, high reproducibility and essentially unlimited dynamic range of real-time PCR to measure gene expression in complex samples provides the opportunity...Full Text Available

228

Infinitesimal symmetries and conservation laws of the DNLSE hierarchy and the Noether's theorem  

Energy Technology Data Exchange (ETDEWEB)

The hierarchy of integrable nonlinear equations associated with the quadratic bundle is considered. The expressions for the solution of linearization of these equations and their conservation law in the terms of solutions of corresponding Lax pairs are found. It is shown for the first member of the hierarchy that the conservation law is connected with the solution of linearized equation due to the Noether's theorem. The local hierarchy and three nonlocal ones of the infinitesimal symmetries and conservation laws explicitly expressed through the variables of the nonlinear equations are derived. (author)

2007-08-15

229

Hypoxia down-regulates sFlt-1 (sVEGFR-1) expression in human microvascular endothelial cells by a mechanism involving mRNA alternative processing  

UK PubMed Central (United Kingdom)

sFlt-1 (soluble Flt-1) potently inhibits angiogenesis by binding extracellularly to VEGF (vascular endothelial growth factor). In the present paper, we report that hypoxia down-regulates sFlt-1 expression...Full Text Available

2011-06-01

230

Forkhead Box Transcription Factor FOXO3a Regulates Estrogen Receptor Alpha Expression and Is Repressed by the Her-2/neu/Phosphatidylinositol 3-Kinase/Akt Signaling Pathway  

UK PubMed Central (United Kingdom)

The expression status of the estrogen receptor alpha (ERα) and that of the epidermal growth factor receptor Her-2/neu frequently correlate inversely in breast cancers. While ERα-dependent...Full Text Available

2004-10-01

231

Expression of alternatively spliced human T-lymphotropic virus type I pX mRNA in infected cell lines and in primary uncultured cells from patients with adult T-cell leukemia/lymphoma and healthy carriers.  

UK PubMed Central (United Kingdom)

Although human T-cell lymphotropic virus type I (HTLV-I) is the etiologic agent of adult T-cell leukemia/lymphoma (ATL), the role of viral gene expression in the progression to and maintenance of the...Full Text Available

1992-04-01

232

Elimination of L-A double-stranded RNA virus of Saccharomyces cerevisiae by expression of gag and gag-pol from an L-A cDNA clone.  

UK PubMed Central (United Kingdom)

We report that expression of a nearly full-length cDNA clone of the L-A double-stranded RNA virus causes virus loss in a wild-type strain of Saccharomyces cerevisiae. We show that in this system exclusion...Full Text Available

1993-05-01

233

Distribution and threshold expression of the tRNA(Lys) mutation in skeletal muscle of patients with myoclonic epilepsy and ragged-red fibers (MERRF).  

UK PubMed Central (United Kingdom)

We investigated the distribution and expression of mutant mtDNAs carrying the A-to-G mutation at position 8344 in the tRNA(Lys) gene in the skeletal muscle of four patients with myoclonus epilepsy and...Full Text Available

1992-12-01

234

Cumulus expansion, nuclear maturation and connexin 43, cyclooxygenase-2 and FSH receptor mRNA expression in equine cumulus-oocyte complexes cultured in vitro in the presence of FSH and precursors for hyaluronic acid synthesis  

UK PubMed Central (United Kingdom)

The aim of this study was to investigate cumulus expansion, nuclear maturation and expression of connexin 43, cyclooxygenase-2 and FSH receptor transcripts in equine cumuli oophori during in vivo and...Full Text Available

235

Context-Driven Cocaine-Seeking in Abstinent Rats Increases Activity-Regulated Gene Expression in the Basolateral Amygdala and Dorsal Hippocampus Differentially following Short and Long Periods of Abstinence  

UK PubMed Central (United Kingdom)

In this study, the expression patterns of zif268 and arc were investigated in the basolateral amygdala (BLA) and dorsal hippocampal (dHPC) subregions during context-induced...Full Text Available

2010-10-13

236

Communicating Mathematics on the Internet: Synchronous and Asynchronous Tools  

British Library Electronic Table of Contents (United Kingdom)

Communicating and collaborating online are becoming common requirements in education. The specialized notations and symbols necessary for some content areas where mathematical expressions are part of the conversation require that users select appropriate communication tools. The purpose of this article is to describe tools that can be used for online, asynchronous or synchronous communication involving mathematical expressions.

2011-01-01

237

Calculation of the imaginary part of the heavy ion potential  

Energy Technology Data Exchange (ETDEWEB)

The paper contains a numerical evaluation of the expressions for the absorptive potential in heavy ion reactions given earlier. With a standard folding expression for the real part of the ion-ion potential general good agreement is found with experimental data for the angular distributions of elastic and inelastic scattering. Special interest is attached to the case of /sup 16/O + /sup 28/Si where the calculated imaginary potential is very small at low bombarding energies.

1983-09-19

238

Calculation of the imaginary part of the heavy ion potential  

International Nuclear Information System (INIS)

The paper contains a numerical evaluation of the expressions for the absorptive potential in heavy ion reactions given earlier. With a standard folding expression for the real part of the ion-ion potential general good agreement is found with experimental data for the angular distributions of elastic and inelastic scattering. Special interest is attached to the case of "1"6O + "2"8Si where the calculated imaginary potential is very small at low bombarding energies. (orig.).

239

Attenuation of oxidant-induced lung injury by 21-aminosteroids (lazaroids): correlation with the mRNA expression for E-selectin, P-selectin, ICAM-1, and VCAM-1.  

UK PubMed Central (United Kingdom)

We compared the effects of treatment with methylprednisolone or the 21-aminosteroids, U-74389 and U-74006F (Tirilizad mesylate), on hyperoxic lung injury and the associated expression of mRNA for several...Full Text Available

1994-12-01

240

A Nonparametric Mean-Variance Smoothing Method to Assess Arabidopsis Cold Stress Transcriptional Regulator CBF2 Overexpression Microarray Data  

UK PubMed Central (United Kingdom)

Microarray is a powerful tool for genome-wide gene expression analysis. In microarray expression data, often mean and variance have certain relationships. We present a non-parametric mean-variance smoothing...Full Text Available

241

Thymidylate synthase expression and genotype have no major impact on the clinical outcome of colorectal cancer patients treated with 5-fluorouracil  

British Library Electronic Table of Contents (United Kingdom)

Background and objectives.Thymidylate synthase (TS) expression levels appear to be related to response to 5-fluorouracil-(5-FU)-based chemotherapy in colorectal cancer (CRC) patients. Three polymorphisms have been proposed as modulators of TS expression: a tandemly repeated sequence (2R/3R) in the 5? UTR, a SNP (G > C) within the 3R allele and a 6 bp deletion in the 3' UTR.To evaluate the influence of TS expression and polymorphisms on clinical outcome of 5-FU-treated patients we performed a comprehensive genetic analysis on 63 CRC patients.Methods.TS expression levels were analyzed in normal and tumor tissues. TS coding sequence and UTR polymorphisms were investigated on DNA from normal tissue. LOH analysis was performed to determine tumor genotype.Results.A difference in disease-free sur...

2011-01-01

242

Functional expression of anti-hepatitis B virus (HBV) preS2 antigen scFv by cspA promoter system in Escherichia coli and application as a recognition molecule for single-walled carbon nanotube (SWNT) field effect transistor (FET)  

British Library Electronic Table of Contents (United Kingdom)

The preS2 antigens of hepatitis B virus (HBV), which causes a serious health problem in the world, have been implicated in hepatocyte cell binding and viral penetration. Therefore, the importance of antibody production against preS2 antigen for early diagnosis of HBV has been well established. In this study, the recombinant HBV preS2 single chain variable fragment (scFv) antibody was successfully expressed in E. coli with the novel cold shock vector (pCold) under the cspA promoter, and its expression level was compared with the pET vector under the T7 promoter. Additionally, a host with an oxidizing cytoplasm, E. coli trxB/gor double mutant, was used to improve the soluble expression. The anti-HBV preS2 scFv using pCold vector was successfully expressed in a soluble and functional form in ...

2010-01-01

243

Cotton plants expressing CYP6AE14 double-stranded RNA show enhanced resistance to bollworms  

British Library Electronic Table of Contents (United Kingdom)

RNA interference (RNAi) plays an important role in regulating gene expression in eukaryotes. Previously, we generated Arabidopsis and tobacco plants expressing double-stranded RNA (dsRNA) targeting a cotton bollworm (Helicoverpa armigera) P450 gene, CYP6AE14. Bollworms fed on transgenic dsCYP6AE14 plants showed suppressed CYP6AE14 expression and reduced growth on gossypol-containing diet (Mao et?al., in Nat Biotechnol 25: 1307?1313, 2007). Here we report generation and analysis of dsRNA-expressing cotton (Gossypium hirsutum) plants. Bollworm larvae reared on T2 plants of the ds6-3 line exhibited drastically retarded growth, and the transgenic plants were less damaged by bollworms than the control. Quantitative reverse-transcription polymerase chain reaction (RT-PCR) showed that the CYP6AE1...

2011-01-01

244

Increased oxidative stress and antioxidant expression in mouse keratinocytes following exposure to paraquat  

International Nuclear Information System (INIS)

Paraquat (1,1'-dimethyl-4,4'-bipyridinium) is a widely used herbicide known to induce skin toxicity. This is thought to be due to oxidative stress resulting from the generation of cytotoxic reactive oxygen intermediates (ROI) during paraquat redox cycling. The skin contains a diverse array of antioxidant enzymes which protect against oxidative stress including superoxide dismutase (SOD), catalase, glutathione peroxidase-1 (GPx-1), heme oxygenase-1 (HO-1), metallothionein-2 (MT-2), and glutathione-S-transferases (GST). In the present studies we compared paraquat redox cycling in primary cultures of undifferentiated and differentiated mouse keratinocytes and determined if this was associated with oxidative stress and altered expression of antioxidant enzymes. We found that paraquat readily undergoes redox cycling in both undifferentiated and differentiated keratinocytes, generating superoxide anion and hydrogen peroxide as well as increased protein oxidation which ...

2008-09-15

245

Apoptotic pathways as regulators of recombination  

International Nuclear Information System (INIS)

Apoptosis, or programmed cell death (PCD), is a fundamental process that protects organismal integrity. In earlier work, we demonstrated that over-expression of either of two anti-apoptotic members of the BCL-2 family (BCL-2 or BCL-X L could elevate the frequency of radiation-induced mutations at the autosomal TK1 locus in human TK6 lymphoblasts that express wild-type TP53. Ectopic expression of BCL-X L also elevated the frequencies of double-strand break-induced gene conversion. The purpose of this study is to determine if BCL-2 family proteins promote radiation mutagenesis indirectly through their suppression of PCD, or whether the 'pro-mutagenic' function of these proteins can be separated from their anti-apoptotic function. We developed stable transfectants of TK6 cells that express a mutated form of BCL-X L with a single amino acid substitution in the BH1 domain that is known to interfere with the ...

2003-08-17

246

Modulation of neuronal differentiation by CD40 isoforms  

International Nuclear Information System (INIS)

Neuron differentiation is a complex process involving various cell-cell interactions, and multiple signaling pathways. We showed previously that CD40 is expressed and functional on mouse and human neurons. In neurons, ligation of CD40 protects against serum withdrawal-induced injury and plays a role in survival and differentiation. CD40 deficient mice display neuron dysfunction, aberrant neuron morphologic changes, and associated gross brain abnormalities. Previous studies by Tone and colleagues suggested that five isoforms of CD40 exist with two predominant isoforms expressed in humans: signal-transducible CD40 type I and a C-terminal truncated, non-signal-transducible CD40 type II. We hypothesized that differential expression of CD40 isoform type I and type II in neurons may modulate neuron differentiation. Results show that adult wild-type, and CD40"-"/"- deficient mice predominantly express CD40 ...

2008-05-02

247

Vascular ATP-sensitive potassium channels are over-expressed and partially regulated by nitric oxide in experimental septic shock  

British Library Electronic Table of Contents (United Kingdom)

Purpose To study the activation and expression of vascular (aorta and small mesenteric arteries) potassium channels during septic shock with or without modulation of the NO pathway. Methods Septic shock was induced in rats by peritonitis. Selective inhibitors of vascular KATP (PNU-37883A) or BKCa [iberiotoxin (IbTX)] channels were used to demonstrate their involvement in vascular hyporeactivity. Vascular response to phenylephrine was measured on aorta and small mesenteric arteries mounted on a wire myograph. Vascular expression of potassium channels was studied by PCR and Western blot, in the presence or absence of 1400W, an inducible NO synthase (iNOS) inhibitor. Aortic activation of the transcriptional factor nuclear factor-kappaB (NF-?B) was assessed by electrophoretic mobility shift as...

2011-01-01

248

Tissue-specific expression of Fgfr2b and Fgfr2c isoforms, Fgf10 and Fgf9 in the developing chick mandible  

British Library Electronic Table of Contents (United Kingdom)

SummaryExperimental evidence has demonstrated the importance of FGF signalling in morphogenesis of the mandibular processes. FGFs transmit their signals through four tyrosine kinase transmembrane receptors (FGFRs). Alternative splicing in FGFRs including FGFR2 generates different isoforms that exhibit different ligand-specificities, exclusive tissue distributions and specific biological functions. Despite extensive information regarding the isoform-specific patterns of expression Fgfr2c and Fgfr2b during morphogenesis of many organs, a comparative analysis of these specific isoforms in the chick mandible has not been reported. To better understand the function of FGFR2 in mandibular morphogenesis, we have analysed the expression Fgfr2b, Fgfr2c and their putative ligands Fgf10 and Fgf9, in ...

2006-01-01

249

The Art of Articulation: Political Engagement and Social Movements in the Making among Young Adults in Multicultural Settings in Norway  

British Library Electronic Table of Contents (United Kingdom)

Participation in conventional politics, such as elections, membership of organizations and political parties, is relatively low among young adults of ethnic minority background. Instead, engagement seems to find its way through aesthetic and other expressive channels of influence drawing on new technologies, impulses from transnational youth culture traditions, and both street riots and less conflictual actions. The aim of this article is to grasp a potential social movement in the making, by exploring the processes of articulation through which young people from immigrant families in Norway express their political engagement. The phenomenon of articulation is understood as a process comprising three steps or modes: (i) becoming conscious; (ii) generating expressions and (iii) collective a...

2011-01-01

250

SEPT9_i1 and genomic instability: Mechanistic insights and relevance to tumorigenesis  

British Library Electronic Table of Contents (United Kingdom)

Abstract Septins are highly conserved cytoskeletal GTP-binding proteins implicated in numerous cellular processes from apoptosis to vesicle trafficking. Septins have been associated with leukemia and solid tumor malignancies, including breast, ovarian, and prostate. We previously reported that high SEPT9_i1 expression in human mammary epithelial cell lines (HMECs) led to malignant cellular phenotypes such as increased cell proliferation, invasiveness, motility, and genomic instability. Our goal here was to better understand how SEPT9_i1 expression might contribute to genomic instability and malignant progression. First, we confirmed that even transient expression of SEPT9_i1 was sufficient to increase aneuploidy in HMECs. We then analyzed SEPT9_i1 by immunoprecipitation and immunofluoresce...

2011-01-01

251

Regulation of C-type natriuretic peptide expression  

British Library Electronic Table of Contents (United Kingdom)

C-type natriuretic peptide (CNP) is a member of the small family of natriuretic peptides that also includes atrial natriuretic peptide (ANP) and brain, or B-type natriuretic peptide (BNP). Unlike them, it performs its major functions in an autocrine or paracrine manner. Those functions, mediated through binding to the membrane guanylyl cyclase natriuretic peptide receptor B (NPR-B), or by signaling through the non-enzyme natriuretic peptide receptor C (NPR-C), include the regulation of endochondral ossification, reproduction, nervous system development, and the maintenance of cardiovascular health. To date, the regulation of CNP gene expression has not received the attention that has been paid to regulation of the ANP and BNP genes. CNP expression in vitro is regulated by TGF-b and recepto...

2011-01-01

252

On the curvature in logarithmic plots of rate coefficients for chemical reactions  

Science.gov (United States)

In terms of the reduced potential energy barrier ? = ?uTS/kT, the rate coefficients for chemical reactions are usually expressed as proportional to e-?. The coupling between vibrational modes of the medium to the reaction coordinate leads to a proportionality of the regularized gamma function of Euler Q(a,?) = ?(a,?)/?(a), with a being the number of modes coupled to the reaction coordinate. In this work, the experimental rate coefficients at various temperatures for several chemical reactions were fitted to the theoretical expression in terms of Q(a,?) to determine the extent of its validity and generality. The new expression affords lower deviations from the experimental points in 29 cases out of 38 and it accounts for the curvature in the logarithmic plots of rate coefficients versus inverse temperature. In the absence of tunneling, conventional theories predict the curvature of these plots to be identically zero.

2011-05-06

253

Intermediate-conductance calcium-activated potassium channels participate in neurovascular coupling  

British Library Electronic Table of Contents (United Kingdom)

BACKGROUND AND PURPOSE Controlling vascular tone involves K+ efflux through endothelial cell small- and intermediate-conductance calcium-activated potassium channels (KCa2.3 and KCa3.1, respectively). We investigated the expression of these channels in astrocytes and the possibility that, by a similar mechanism, they might contribute to neurovascular coupling. EXPERIMENTAL APPROACH Transgenic mice expressing enhanced green fluorescent protein (eGFP) in astrocytes were used to assess KCa2.3 and KCa3.1 expression by immunohistochemistry and RT-PCR. KCa currents in eGFP-positive astrocytes were determined in situ using whole-cell patch clamp electrophysiology. The contribution of KCa3.1 to neurovascular coupling was investigated in pharmacological experiments using electrical field stimulatio...

2011-01-01

254

Interlattice displacements and elastic constants of the A-15 compounds V_3Si, V_3Ge and Nb_3Sn  

International Nuclear Information System (INIS)

General expressions for the interlattice displacements of the A-15 structure compounds are obtained in terms of the strain components making use of the deformation theory. The nature of the interlattice displacements of all the 8 atoms in the unit cell is discussed. It is found that the interlattice displacements occur in such a way that the pair of atoms along any linear chain move in opposite directions with equal magnitudes. Expression for the strain energy of these compounds is developed using deformation theory and this is compared with the strain energy expression from continuum theory to obtain the elastic constants. The theoretical values of the elastic constants fairly agree with the experimental values for V_3Si, V_3Ge and Nb_3Sn. (author).

255

Interlattice displacements and elastic constants of the A-15 compounds V3Si, V3Ge and Nb3Sn  

Science.gov (United States)

General expressions for the interlattice displacements of the A-15 structure compounds are obtained in terms of the strain components making use of the deformation theory. The nature of the interlattice displacements of all the 8 atoms in the unit cell is discussed. It is found that the interlattice displacements occur in such a way that the pair of atoms along any linear chain move in opposite directions with equal magnitudes. Expression for the strain energy of these compounds is developed using deformation theory and this is compared with the strain energy expression from continuum theory to obtain the elastic constants. The theoretical values of the elastic constants fairly agree with the experimental values for V3Si, V3Ge and Nb3Sn.

1978-03-01

256

Hypomethylation and induction of retinoic acid receptor beta 2 by concurrent action of adenosine analogues and natural compounds in breast cancer cells  

British Library Electronic Table of Contents (United Kingdom)

DNA methylation is considered as a potential cause of aberrations in regulation of gene expression during carcinogenesis. Therefore, changes in DNA methylation patterns may be targets for chemoprevention. In the present study, we investigated effects of all-trans retinoic acid (ATRA), vitamin D3, and resveratrol alone and in combination with adenosine analogues: 2-chloro-2'-deoxyadenosine (2CdA) and 9-beta-d-arabinosyl-2-fluoroadenine (F-ara-A), on methylation and expression of retinoic acid receptor beta 2 (RARbeta2) in MCF-7 and MDA-MB-231 breast cancer cell lines. Alterations in methylation and expression levels after treatment of cells with the tested compounds were evaluated by methylation-sensitive restriction analysis (MSRA) and real-time PCR, respectively. RARbeta2 promoter in the ...

2010-01-01

257

Gene expression analysis identifies potential biomarkers of phenanthrene in human hepatocytes (HepG2)  

British Library Electronic Table of Contents (United Kingdom)

Polycyclic aromatic hydrocarbons (PAHs) are ubiquious in the environment both as natural products and as environmental contaminants. Among PAHs, phenanthrene (PH) that is ubiquitously distributed throughout the environment was subjected in this study. Although environmental distribution and metabolism of PH have been well reported, there are only a few studies examined the expression of mRNA and their functions on PH-induced toxicity. A new paradigm in toxicity screening, toxicogenomic technology represents a useful approach for evaluating the toxic properties of environmental pollutants. In this respect, we elicited the genes which were changed more than 2-fold by analysis of gene expression profiles in human hepatocellular carcinoma (HepG2) cells, exposed to PH by using human oligonucleo...

2011-01-01

258

Food-grade gene expression in lactic acid bacteria  

British Library Electronic Table of Contents (United Kingdom)

Abstract In the 1990s, significant efforts were invested in the research and development of food-grade expression systems in lactic acid bacteria (LAB). At this time, Lactococcus lactis in particular was demonstrated to be an ideal cell factory for the food-grade production of recombinant proteins. Steady progress has since been made in research on LAB, including Lactococcus, Lactobacillus and Streptococcus, in the areas of recombinant enzyme production, industrial food fermentation, and gene and metabolic pathway regulation. Over the past decade, this work has also led to new approaches on chromosomal integration vectors and host/vector systems. These newly constructed food-grade gene expression systems were designed with specific attention to self-cloning strategies, food-grade selection...

2011-01-01

259

Expression of suppressor of cytokine signaling 1 and 3 in ligature-induced periodontitis in rats  

British Library Electronic Table of Contents (United Kingdom)

Objective: : Evaluate expression of inducible negative regulators of JAK/STAT pathway and their target proteins during the course of ligature-induced experimental periodontal disease in rats. Design: : Rats were sacrificed 07, 15 and 30days after disease induction for histological evaluation of periodontal inflammation and macroscopic analysis of alveolar bone loss. SOCS expression and the activation status of STAT1 and STAT3 were evaluated in gingival biopsies by real time PCR and Western blot. Results: : Ligature-induced model presented significant progressive bone loss from 7 to 30days. Inflammation was evident and similar for 07 and 15days; however, a decrease on severity at the end of the experimental period was observed. There was a significant (p<0.05) increase on SOCS1 and SOCS3 ge...

2011-01-01

260

Expression of Distal-less, dachshund, and optomotor blind in Neanthes arenaceodentata (Annelida, Nereididae) does not support homology of appendage-forming mechanisms across the Bilateria  

British Library Electronic Table of Contents (United Kingdom)

The similarity in the genetic regulation of arthropod and vertebrate appendage formation has been interpreted as the product of a plesiomorphic gene network that was primitively involved in bilaterian appendage development and co-opted to build appendages (in modern phyla) that are not historically related as structures. Data from lophotrochozoans are needed to clarify the pervasiveness of plesiomorphic appendage-forming mechanisms. We assayed the expression of three arthropod and vertebrate limb gene orthologs, Distal-less (Dll), dachshund (dac), and optomotor blind (omb), in direct-developing juveniles of the polychaete Neanthes arenaceodentata. Parapodial Dll expression marks pre-morphogenetic notopodia and neuropodia, becoming restricted to the bases of notopodial cirri and to ventral ...

2010-01-01

261

Epigenetic regulation of autosomal gene expression by sex chromosomes  

British Library Electronic Table of Contents (United Kingdom)

Males and females display differences in physiology, behaviour and susceptibility to many diseases. Genome-wide transcription profiling studies have uncovered large-scale sex differences in autosomal gene expression in somatic tissues that are thought to underlie such 'sexual dimorphisms'. Because males and females differ genetically mainly in their sex chromosome complement, most sex differences can be traced back to the X and Y chromosomes. Although sex hormones are usually considered the main architects of sexual dimorphisms, recent studies have demonstrated that sex chromosomes can also induce sex differences in somatic gene expression in the absence of hormonal differences. The recent discovery of epigenetic sex differences that are not hormone-induced brings us closer to understandin...

2011-01-01

262

Cyclooxygenase expression and prostaglandin levels in central nervous system tissues during the course of chronic relapsing experimental autoimmune encephalomyelitis (EAE)  

British Library Electronic Table of Contents (United Kingdom)

Objective Multiple sclerosis (MS) and its animal counterpart experimental autoimmune encephalomyelitis (EAE) have a major inflammatory component that drives and orchestrates both diseases. One particular group of mediators are the prostaglandins (PGs), which we have previously shown, through quantitation and pharmacological intervention, to be closely involved in the pathology of MS and EAE. The aim of the current study was to determine the expression of the PG-generating cyclooxygenase (COX) enzymes and the profile of PGE2 and PGD2, in selected central nervous system (CNS) tissues, with the development of the chronic relapsing (CR) form of EAE. In particular, the work investigates the possible relationship between the expression of COX isoenzymes and PG levels during the neurological phas...

2011-01-01

263

Aldehyde dehydrogenase (ALDH) 3A1 expression by the human keratocyte and its repair phenotypes  

British Library Electronic Table of Contents (United Kingdom)

Transparency is essential for normal corneal function. Recent studies suggest that corneal cells express high levels of so-called corneal crystallins, such as aldehyde dehydrogenase (ALDH) and transketolase (TKT) that contribute to maintaining cellular transparency. Stromal injury leads to the appearance of repair phenotype keratocytes, the corneal fibroblast and myofibroblast. Previous studies on keratocytes from species such as bovine and rabbit indicate that the transformation from the normal to repair phenotype is accompanied by a loss of corneal crystallin expression, which may be associated with loss of cellular transparency. Here we investigated if a similar loss occurs with human keratocyte repair phenotypes. Human corneal epithelial cells were collected by scraping and keratocytes...

2006-01-01

264

A Hybrid Multi Objective Particle Swarm Optimization Method to Discover Biclusters in Microarray Data  

CERN Document Server

In recent years, with the development of microarray technique, discovery of useful knowledge from microarray data has become very important. Biclustering is a very useful data mining technique for discovering genes which have similar behavior. In microarray data, several objectives have to be optimized simultaneously and often these objectives are in conflict with each other. A Multi Objective model is capable of solving such problems. Our method proposes a Hybrid algorithm which is based on the Multi Objective Particle Swarm Optimization for discovering biclusters in gene expression data. In our method, we will consider a low level of overlapping amongst the biclusters and try to cover all elements of the gene expression matrix. Experimental results in the bench mark database show a significant improvement in both overlap among biclusters and coverage of elements in the gene expression matrix.

2009-01-01

265

var gene transcription and PfEMP1 expression in the rosetting and cytoadhesive Plasmodium falciparum clone FCR3S1.2  

UK PubMed Central (United Kingdom)

BackgroundThe pathogenicity of Plasmodium falciparum is in part due to the ability of the parasitized red blood cell (pRBC) to adhere to intra-vascular host cell...Full Text Available

266

piggyBac Transposon-mediated Long-term Gene Expression in Mice  

UK PubMed Central (United Kingdom)

Transposons are promising systems for somatic gene integration because they can not only integrate exogenous genes efficiently, but also be delivered to a variety of organs using a range of transfection...Full Text Available

2010-04-01

267

chipD: a web tool to design oligonucleotide probes for high-density tiling arrays  

UK PubMed Central (United Kingdom)

chipD is a web server that facilitates design of DNA oligonucleotide probes for high-density tiling arrays, which can be used in a number of genomic applications such as ChIP-chip or gene-expression...Full Text Available

2010-07-01

268

cDNA-AFLP analysis reveals differential gene expression in compatible interaction of wheat challenged with Puccinia striiformis f. sp. tritici  

UK PubMed Central (United Kingdom)

BackgroundPuccinia striiformis f. sp. tritici is a fungal pathogen causing stripe rust, one of the most important wheat diseases worldwide. The...Full Text Available

269

Variable domain I of nematode CLEs directs post-translational targeting of CLE peptides to the extracellular space  

UK PubMed Central (United Kingdom)

Effector proteins expressed in the esophageal gland cells of cyst nematodes are delivered into plant cells through a hollow, protrusible stylet. Although evidence indicates that effector proteins function...Full Text Available

2010-12-01

270

Using Regulatory and Epistatic Networks to Extend the Findings of a Genome Scan: Identifying the Gene Drivers of Pigmentation in Merino Sheep  

UK PubMed Central (United Kingdom)

Extending genome wide association analysis by the inclusion of gene expression data may assist in the dissection of complex traits. We examined piebald, a pigmentation phenotype in both human and Merino...Full Text Available

271

Urinary Outflow Obstruction Increases Apoptosis and Deregulates Bcl-2 and Bax Expression in the Fetal Ovine Bladder  

UK PubMed Central (United Kingdom)

During organogenesis, net growth of tissues is determined by a balance between proliferation, hypertrophy, and apoptotic death. Human fetal bladder outflow obstruction is a major cause of end-stage...Full Text Available

2003-04-01

272

Unraveling gene regulatory networks from time-resolved gene expression data -- a measures comparison study  

UK PubMed Central (United Kingdom)

BackgroundInferring regulatory interactions between genes from transcriptomics time-resolved data, yielding reverse engineered gene regulatory networks, is of paramount importance...Full Text Available

273

Ubiquitin over-expression phenotypes and ubiquitin gene molecular misreading during aging in Drosophila melanogaster  

UK PubMed Central (United Kingdom)

Molecular Misreading (MM) is the inaccurate conversion of genomic information into aberrant proteins. For example, when RNA polymerase II transcribes a GAGAG motif it synthesizes at low frequency RNA...Full Text Available

274

Transplantation of allogeneic T cells alters iron homeostasis in NOD/SCID mice  

UK PubMed Central (United Kingdom)

Iron overload is common in patients undergoing allogeneic hematopoietic cell transplantation (HCT), but the mechanisms leading to overload are unknown. Here, we determined iron levels and the expression...Full Text Available

2009-02-19

275

Transcriptome Profiling of a Toxic Dinoflagellate Reveals a Gene-Rich Protist and a Potential Impact on Gene Expression Due to Bacterial Presence  

UK PubMed Central (United Kingdom)

BackgroundDinoflagellates are unicellular, often photosynthetic protists that play a major role in the dynamics of the Earth's oceans and climate. Sequencing of dinoflagellate nuclear...Full Text Available

276

Transcriptional repression and developmental functions of the atypical vertebrate GATA protein TRPS1  

UK PubMed Central (United Kingdom)

Known vertebrate GATA proteins contain two zinc fingers and are required in development, whereas invertebrates express a class of essential proteins containing one GATA-type zinc finger. We isolated...Full Text Available

2001-04-02

277

Time-Dependent Expression of Arc and Zif268 after Acquisition of Fear Conditioning  

UK PubMed Central (United Kingdom)

Memory consolidation requires transcription and translation of new protein. Arc, an effector immediate early gene, and zif268, a regulatory transcription factor, have been implicated in synaptic plasticity...Full Text Available

2010-01-01

278

Time contour expression of limited range phenomena on stack chart; Jugo chart jo deno kyokuchi gensho jikan contour  

Energy Technology Data Exchange (ETDEWEB)

Time contour expression of limited range phenomena on stack chart is examined for further improvement on the result of the ultimate interpretation in the seismic reflection survey. The policy is made clear from the beginning that local phenomena are to be discussed, and data prior CMP stacking is interpreted in detail. For this purpose, it is effective to make use of the time contour expression in the midpoint-offset plane simultaneously with the CMP and COP panels. For the review of data prior to CMP stacking, it is convenient to use the CMP (CDP) stacking chart in which the data is arranged methodically. In this chart, all the channels which are crude data prior to stacking are plotted on midpoint-offset coordinates, which plane is called the MOD (Midpoint Offset Domain) panel. Various panels can be chosen unrestrictedly, and their mutual relations can be easily grasped. When data points are given a time axis, they can be ...

1997-05-27

279

The role of gene expression in ecological speciation  

UK PubMed Central (United Kingdom)

Ecological speciation is the process by which barriers to gene flow between populations evolve due to adaptive divergence via natural selection. A relatively unexplored area in ecological speciation...Full Text Available

2010-09-01

280

The protein encoded by the rolB plant oncogene hydrolyses indole glucosides.  

UK PubMed Central (United Kingdom)

The rolB gene of Agrobacterium rhizogenes, whose expression stimulates the formation of roots by transformed plant tissues and other growth alterations in transgenic plants, codes for a beta-glucosidase...Full Text Available

1991-11-01

281

The plant oncogene rolC is responsible for the release of cytokinins from glucoside conjugates.  

UK PubMed Central (United Kingdom)

The rolC gene of Agrobacterium rhizogenes, which drastically affects growth and development of transgenic plants, codes for a cytokinin-beta-glucosidase. Indeed, rolC protein expressed in Escherichia...Full Text Available

1991-10-01

282

The p14 FAST Protein of Reptilian Reovirus Increases Vesicular Stomatitis Virus Neuropathogenesis?  

UK PubMed Central (United Kingdom)

The fusogenic orthoreoviruses express nonstructural fusion-associated small transmembrane (FAST) proteins that induce cell-cell fusion and syncytium formation. It has been speculated that the FAST proteins...Full Text Available

2009-01-01

283

The luxS Gene of Streptococcus pyogenes Regulates Expression of Genes That Affect Internalization by Epithelial Cells  

UK PubMed Central (United Kingdom)

The gram-positive pathogen Streptococcus pyogenes was recently reported to possess a homologue of the luxS gene that is responsible for the production of autoinducer...Full Text Available

2003-10-01

284

The effect of lipopolysaccharide on bovine mammary macrophage function.  

UK PubMed Central (United Kingdom)

The effect of Escherichia coli lipopolysaccharide (LPS) on the expression of major histocompatibility complex (MHC) class II molecules by bovine mammary macrophages was examined. The ability of LPS-treated...Full Text Available

1991-07-01

285

The Specificity of Innate Immune Responses Is Enforced by Repression of Interferon Response Elements by NF-?B p50  

UK PubMed Central (United Kingdom)

The specific binding of transcription factors to cognate sequence elements is thought to be critical for the generation of specific gene expression programs. Members of the nuclear factor κB...Full Text Available

286

The Pregnane X Receptor: From Bench to Bedside  

UK PubMed Central (United Kingdom)

BackgroundThe pregnane X receptor (PXR; NR1I2), a member of the nuclear receptor superfamily, regulates the expression of metabolic enzymes and transporters involved...Full Text Available

2008-07-01

287

The Melanocortin 3 Receptor: A Novel Mediator of Exercise-Induced Inflammation Reduction in Postmenopausal Women?  

UK PubMed Central (United Kingdom)

The purpose of this study was to determine whether resistance exercise training-induced reductions in inflammation are mediated via melanocortin 3 receptor expression in obese (BMI 32.7 ± 3.7)...Full Text Available

288

The Differential Expression of Aqueous Soluble Proteins in Breast Normal and Cancerous Tissues in Relation to Stage and Grade of Patients  

UK PubMed Central (United Kingdom)

Breast cancer is a leading cause of female deaths worldwide. In Malaysia, it is the most common form of female cancer while Infiltrating ductal carcinoma (IDC) is the most common form of breast cancer....Full Text Available

2010-01-01

289

The Anopheles gambiae glutathione transferase supergene family: annotation, phylogeny and expression profiles  

UK PubMed Central (United Kingdom)

BackgroundTwenty-eight genes putatively encoding cytosolic glutathione transferases have been identified in the Anopheles gambiae genome. We manually annotated these...Full Text Available

290

Temporal and Tissue-Specific Patterns of Pon3 Expression in Mouse: In situ Hybridization Analysis  

UK PubMed Central (United Kingdom)

PON3 is a member of the paraoxonase gene family that includes PON1 and PON2. For example, PON3 and PON1 share...Full Text Available

2010-01-01

291

Targeted Deletion of Somatotroph Insulin-Like Growth Factor-I Signaling in a Cell-Specific Knockout Mouse Model  

UK PubMed Central (United Kingdom)

The role of IGF-I in the negative regulation of GH expression and release is demonstrated by in vitro and in vivo models; however, the targets and mechanisms of IGF-I...Full Text Available

2010-05-01

292

TFIIH Operates through an Expanded Proximal Promoter To Fine-Tune c-myc Expression  

UK PubMed Central (United Kingdom)

A continuous stream of activating and repressing signals is processed by the transcription complex paused at the promoter of the c-myc proto-oncogene. The general transcription factor...Full Text Available

2005-01-01

293

Syk Tyrosine Kinase Acts as a Pancreatic Adenocarcinoma Tumor Suppressor by Regulating Cellular Growth and Invasion  

UK PubMed Central (United Kingdom)

We have identified the nonreceptor tyrosine kinase syk as a marker of differentiation/tumor suppressor in pancreatic ductal adenocarcinoma (PDAC). Syk expression is lost in poorly differentiated PDAC...Full Text Available

2009-12-01

294

Survey of transcripts expressed by the invasive juvenile stage of the liver fluke Fasciola hepatica  

UK PubMed Central (United Kingdom)

BackgroundThe common liver fluke Fasciola hepatica is the agent of a zoonosis with significant economic consequences in livestock production worldwide, and increasing...Full Text Available

295

Surfactant protein A, an innate immune factor, is expressed in the vaginal mucosa and is present in vaginal lavage fluid  

UK PubMed Central (United Kingdom)

Surfactant protein A (SP-A), first identified as a component of the lung surfactant system, is now recognized to be an important contributor to host defence mechanisms. SP-A can facilitate phagocytosis...Full Text Available

2004-01-01

296

Studying bacterial transcriptomes using RNA-seq  

UK PubMed Central (United Kingdom)

Genome-wide studies of bacterial gene expression are shifting from microarray technology to second generation sequencing platforms. RNA-seq has a number of advantages over hybridization-based techniques,...Full Text Available

2010-10-01

297

Structure of the Taz2 domain of p300: insights into ligand binding  

UK PubMed Central (United Kingdom)

CBP and its paralog p300 are histone acetyl transferases that regulate gene expression by interacting with multiple transcription factors via specialized domains. The structure...Full Text Available

2009-12-01

298

Structural Characterization and Expression Analysis of the SERK/SERL Gene Family in Rice (Oryza sativa)  

UK PubMed Central (United Kingdom)

Somatic embryogenesis (SE) is the developmental restructuring of somatic cells towards the embryogenic pathway and forms the basis of cellular totipotency in angiosperms. With the availability of full-length...Full Text Available

2009-01-01

299

Spontaneous expression of the interleukin 2 receptor gene and presence of functional interleukin 2 receptors on T lymphocytes in the blood of individuals with active pulmonary sarcoidosis.  

UK PubMed Central (United Kingdom)

Current concepts of the pathogenesis of sarcoidosis suggest that the expanded numbers of activated T-helper/inducer cells at sites of disease activity result, at least in part, from their proliferation...Full Text Available

1988-09-01

300

Species-specific microRNA roles elucidated following astrocyte activation  

UK PubMed Central (United Kingdom)

MicroRNAs (miRNAs) are short non-coding RNAs that play a central role in regulation of gene expression by binding to target genes. Many miRNAs were associated with the function of the central nervous...Full Text Available

2011-05-01

301

Simultaneous expression of different transgenes in neurons and glia by combining in utero electroporation with the Tol2 transposon-mediated gene transfer system  

UK PubMed Central (United Kingdom)

In utero electroporation is widely used to study neuronal development and function by introducing plasmid DNA into neural progenitors during embryogenesis. This is an effective and...Full Text Available

2010-05-01

302

SELF-RENEWAL AND DIFFERENTIATION OF MOUSE EMBRYONIC STEM CELLS AS MEASURED BY Oct4 GENE EXPRESSION: EFFECTS OF LIF, ...  

Science.gov (United States)

... from Dr. Austin Smith of the Institute for Stem Cell Research, University of Edinburgh) was modified from the CGR8 ... to thank Dr. Austin Smith, the Institute for Stem Cell Research, University of Edinbu...

303

S1 nuclease analysis of #alpha#-globin gene expression in preleukemic patients with acquired hemoglobin H disease after transfer to mouse erythroleukemia cells  

International Nuclear Information System (INIS)

The loss of #alpha#-globin gene transcriptional activity rarely occurs as an acquired abnormality during the evolution of myeloproliferative disease or preleukemia. To test whether the mutation responsible for the loss of #alpha#-globin gene expression (hemoglobin H disease) in these patients is linked with the #alpha#-globin genes on chromosome 16, the authors transferred chromosome 16 from preleukemic patients with acquired hemoglobin H disease to mouse erythroleukemia cells and measured the transcriptional activity of the human #alpha#-globin genes. After transfer to mouse erythroleukemia cells, the expression of human #alpha#-globin genes from the peripheral blood or marrow cells of preleukemic patients with acquired hemoglobin H disease was similar to that of human #alpha#-globin genes transferred to mouse erythroleukemia cells from normal donors. These data showed that factor(s) in the mouse erythroleukemia cell can genetically complement ...

304

Role of the sar locus of Staphylococcus aureus in induction of endocarditis in rabbits.  

UK PubMed Central (United Kingdom)

A regulatory locus on the Staphylococcus aureus chromosome, designated sar, is involved in the expression of cell wall proteins, some of which are potentially important in the pathogenesis of endocarditis....Full Text Available

1994-05-01

305

Role of plasma membrane calcium ATPase 2 in spinal cord pathology  

UK PubMed Central (United Kingdom)

A number of studies have indicated that plasma membrane calcium ATPases (PMCAs) are expressed in the brain and spinal cord and could play important roles not only in the maintenance of cellular calcium...Full Text Available

2010-05-26

306

Reverse Engineering of Gene Regulatory Networks: A Comparative Study  

UK PubMed Central (United Kingdom)

Reverse engineering of gene regulatory networks has been an intensively studied topic in bioinformatics since it constitutes an intermediate step from explorative to causative gene expression...Full Text Available

2009-01-01

307

Retinal channelrhodopsin-2-mediated activity in vivo evaluated with manganese-enhanced magnetic resonance imaging  

UK PubMed Central (United Kingdom)

PurposeEctopic expression of light-sensitive proteins, such as channelrhodopsin-2, represent a novel approach for restoring light-detection capabilities to degenerated retina. A...Full Text Available

308

Regulation of the brown and white fat gene programs through a PRDM16/CtBP transcriptional complex  

UK PubMed Central (United Kingdom)

Brown fat is a specialized tissue that can dissipate energy and counteract obesity through a pattern of gene expression that greatly increases mitochondrial content and uncoupled respiration. PRDM16...Full Text Available

2008-05-15

309

Regulation of rat hepatic low density lipoprotein receptors. In vivo stimulation by growth hormone is not mediated by insulin-like growth factor I.  

UK PubMed Central (United Kingdom)

Growth hormone (GH) has an important role in the regulation of hepatic LDL receptor expression and plasma lipoprotein levels. This investigation was undertaken to evaluate if these effects of GH on...Full Text Available

1996-01-15

310

Regulation of macrophage accessory cell activity by mycobacteria. I. Ia expression in normal and irradiated mice infected with Mycobacterium mycroti  

International Nuclear Information System (INIS)

CBA/Ca mice were infected by either the intravenous or intraperitoneal route with Mycobacterium microti and the subsequent changes in local macrophage populations examined. Following infection, the number of macrophages increased and they showed greater expression of both MHC Class II molecules. This response was not dependent on viability of the mycobacteria, in contrast to reports with other microorganisms such as Listeria. Studies in sublethally irradiated mice indicated that persistent antigen could give rise to a response after a period of host recovery which was radiation dose dependent. This procedure also highlighted differences in the regulation of different murine class II antigens in vivo, as seen by delayed re-expression of I-E antigens. Macrophage accessory cell function, as assessed by an in vitro T cell proliferation assay, correlated with Ia expression after fixation, but not after indomethacin treatment; ...

311

RNA expression in a cartilaginous fish cell line reveals ancient 3? noncoding regions highly conserved in vertebrates  

UK PubMed Central (United Kingdom)

We have established a cartilaginous fish cell line [Squalus acanthias embryo cell line (SAE)], a mesenchymal stem cell line derived from the embryo of an elasmobranch, the spiny dogfish...Full Text Available

2007-01-23

312

Quantitative Analysis of Endocytosis and Turnover of Epidermal Growth Factor (EGF) and EGF Receptor  

UK PubMed Central (United Kingdom)

Binding of epidermal growth factor (EGF) to the EGF receptor (EGFR) initiates signal transduction, ultimately leading to altered gene expression. Ligand-activated EGFR is also rapidly internalized...Full Text Available

2010-03-01

313

Proteomic approach with LCMS-IT-TOF identified an increase of Rab33B after transient focal cerebral ischemia in mice  

UK PubMed Central (United Kingdom)

BackgroundSeveral proteins are known to be markedly expressed in the brain during cerebral ischemia; however, the changes in protein profiles within the ischemic brain after an ischemic...Full Text Available

314

Protein expression based multimarker analysis of breast cancer samples  

UK PubMed Central (United Kingdom)

BackgroundTissue microarray (TMA) data are commonly used to validate the prognostic accuracy of tumor markers. For example, breast cancer TMA data have led to the identification...Full Text Available

315

Proliferative Hypothalamic Neurospheres Express NPY, AGRP, POMC, CART and Orexin-A and Differentiate to Functional Neurons  

UK PubMed Central (United Kingdom)

Some pathological conditions with feeding pattern alterations, including obesity and Huntington disease (HD) are associated with hypothalamic dysfunction and neuronal cell death. Additionally, the hypothalamus...Full Text Available

316

Profiling highly conserved microrna expression in recombinant IgG-producing and parental Chinese hamster ovary cells  

British Library Electronic Table of Contents (United Kingdom)

Abstract MicroRNAs (miRNAs) play important roles in global gene regulation. Researchers in recombinant protein production have proposed miRNAs as biomarkers and cell engineering targets. However, miRNA expression remains understudied in Chinese Hamster Ovary cells, one of the most commonly used host cell systems for therapeutic protein production. To profile highly conserved miRNA expression, we used the miRCURY- miRNA array for screening miRNAs in CHO cells. The selection criteria for further miRNA profiling included positive hybridization signals and experimentally validated predicted regulatory targets. On the basis of screening, we selected 16 miRNAs for quantitative RT-PCR profiling. We profiled miR expression in parental CHO DG44 and CHO K1 cell lines as well as four recombinant DG44...

2011-01-01

317

Problems for clinical judgement: 2. Obtaining a reliable past medical history  

UK PubMed Central (United Kingdom)

ORDINARY HUMAN REASONING MAY LEAD PATIENTS to provide an unreliable history of past experiences because of errors in comprehension, recall, evaluation and expression. Comprehension of a question may...Full Text Available

2001-03-20

318

Probiotics inhibit enteropathogenic E. coli adherence in vitro by inducing intestinal mucin gene expression.  

Science.gov (United States)

Probiotic agents, live microorganisms with beneficial effects for the host, may offer an alternative to conventional antimicrobials in the treatment and prevention of enteric infections. The probiotic agents Lactobacillus plantarum 299v and Lactobacillus rhamnosus GG quantitatively inhibited the adherence of an attaching and effacing pathogenic Escherichia coli to HT-29 intestinal epithelial cells but did not inhibit adherence to nonintestinal HEp-2 cells. HT-29 cells were grown under conditions that induced high levels of either MUC2 or MUC3 mRNA, but HEp-2 cells expressed only minimal levels of MUC2 and no MUC3 mRNA. Media enriched for MUC2 and MUC3 mucin were added exogenously to binding assays and were shown to be capable of inhibiting enteropathogen adherence to HEp-2 cells. Incubation of L. plantarum 299v with HT-29 cells increased MUC2 and MUC3 mRNA expression levels. From these in vitro studies, we propose the hypothesis that the ...

1999-04-01

319

Primary structure and regulation of vegetative specific genes of Dictyostelium discoideum.  

UK PubMed Central (United Kingdom)

We have examined the expression and structure of several genes belonging to two classes of vegetative specific genes of the simple eukaryote, Dictyostelium discoideum. In amebae grown on bacteria, deactivation...Full Text Available

1989-12-11

320

Precise temporal control of the eye regulatory gene Pax6 via enhancer-binding site affinity  

UK PubMed Central (United Kingdom)

How transcription factors interpret the cis-regulatory logic encoded within enhancers to mediate quantitative changes in spatiotemporally restricted expression patterns during animal...Full Text Available

2010-05-15

321

Phosphorylated PmrA Interacts with the Promoter Region of ugd in Salmonella enterica Serovar Typhimurium  

UK PubMed Central (United Kingdom)

The Salmonella PmrA-PmrB system controls the expression of genes necessary for polymyxin B resistance. Four loci were previously identified as part of the regulon, and interaction of...Full Text Available

2000-07-01

322

Phosphatase of Regenerating Liver-3 Promotes Motility and Metastasis of Mouse Melanoma Cells  

UK PubMed Central (United Kingdom)

Recent reports suggested that phosphatase of regenerating liver (PRL)-3 might be involved in colorectal carcinoma metastasis with an unknown mechanism. Here we demonstrated that PRL-3 expression was...Full Text Available

2004-06-01

323

Phenotypic Anchoring of Acetaminophen-Induced Oxidative Stress with Gene Expression Profiles in Rat Liver  

UK PubMed Central (United Kingdom)

Toxicogenomics provides the ability to examine in greater detail the underlying molecular events that precede and accompany toxicity, thus allowing prediction of adverse events at much earlier...Full Text Available

2006-09-01

324

Pathophysiological, Genetic and Gene Expression Features of a Novel Rodent Model of the Cardio-Metabolic Syndrome  

UK PubMed Central (United Kingdom)

BackgroundComplex etiology and pathogenesis of pathophysiological components of the cardio-metabolic syndrome have been demonstrated in humans and animal models.Methodology/Principal...Full Text Available

325

PEG-conjugated PAMAM Dendrimers Mediate Efficient Intramuscular Gene Expression  

UK PubMed Central (United Kingdom)

Generations 5 and 6 (G5 and G6) poly(amidoamine) (PAMAM) dendrimers have been shown to be highly efficient nonviral carriers in in vitro gene delivery. However, their high toxicity...Full Text Available

326

Overexpression of human virus surface glycoprotein precursors induces cytosolic unfolded protein response in Saccharomyces cerevisiae  

UK PubMed Central (United Kingdom)

BackgroundThe expression of human virus surface proteins, as well as other mammalian glycoproteins, is much more efficient in cells of higher eukaryotes rather than yeasts. The limitations...Full Text Available

327

Overexpression of bacterial ethylene-forming enzyme gene in Trichoderma reesei enhanced the production of ethylene  

UK PubMed Central (United Kingdom)

In order to efficiently utilize natural cellulose materials to produce ethylene, three expression vectors containing the ethylene-forming enzyme (efe) gene from Pseudomonas...Full Text Available

328

Orp1, a member of the Cdc18/Cdc6 family of S-phase regulators, is homologous to a component of the origin recognition complex.  

UK PubMed Central (United Kingdom)

cdc18+ of Schizosaccharomyces pombe is a periodically expressed gene that is required for entry into S phase and for the coordination of S phase with mitosis. cdc18+ is related to the Saccharomyces...Full Text Available

1995-12-19

329

Ontogenetic Profile of the Expression of Thyroid Hormone Receptors in Rat and Human Corpora Cavernosa of the Penis  

UK PubMed Central (United Kingdom)

IntroductionIn the last few years, various studies have underlined a correlation between thyroid function and male sexual function, hypothesizing a direct action of thyroid hormones...Full Text Available

2010-04-01

330

Once more: gravity is not an entropic force  

CERN Document Server

We argue that neutron interference experiments and experiments on gravitational bound states of neutron unambiguously disprove entropic origin of gravitation. The criticism expressed in a recent paper [arXiv:1104.4650] concerning our arguments against entropic gravity is shown to be invalid.

2011-01-01

331

OPERATION CASTLE. Radiological Safety. Volume 2.  

Science.gov (United States)

This report is designed to cover the overall Operation Castle radiological safety matters from the viewpoint of those issues of direct concern to Headquarters, Joint Task Force Seven. It was written for the express purpose of assisting in the development ...

1985-01-01

332

OPERATION CASTLE. Radiological Safety. Volume 1.  

Science.gov (United States)

This report is designed to cover the overall Operation Castle radiological safety matters from the viewpoint of those issues of direct concern to Headquarters, Joint Task Force Seven. It was written for the express purpose of assisting in the development ...

1985-01-01

333

Nuclear Organization and Dynamics of 7SK RNA in Regulating Gene Expression  

UK PubMed Central (United Kingdom)

Noncoding RNAs play important roles in various aspects of gene regulation. We have identified 7SK RNA to be enriched in nuclear speckles or interchromatin granule clusters (IGCs), a subnuclear domain...Full Text Available

2010-12-01

334

Nuclear ? catenin as a potential prognostic and diagnostic marker in patients with colorectal cancer from Hong Kong  

UK PubMed Central (United Kingdom)

Aims: To study the expression of nuclear β catenin in patients with colorectal cancer, colorectal adenoma, and colorectal polyps to elucidate its role in carcinogenesis, and its...Full Text Available

2003-12-01

335

Ntk: a Csk-related protein-tyrosine kinase expressed in brain and T lymphocytes.  

UK PubMed Central (United Kingdom)

The activity of Src-related protein-tyrosine kinases is repressed by the phosphorylation of a conserved carboxyl-terminal tyrosine by another cytoplasmic protein-tyrosine kinase termed p50csk. In this...Full Text Available

1994-05-24

336

Nonnative Proteins Induce Expression of the Bacillus subtilis CIRCE Regulon  

UK PubMed Central (United Kingdom)

The chaperone-encoding groESL and dnaK operons constitute the CIRCE regulon of Bacillus subtilis. Both operons are under negative control of the repressor...Full Text Available

1998-06-01

337

Neutron stars in massive binary systems. I. Classification and evolution  

Energy Technology Data Exchange (ETDEWEB)

A study of the joint evolution of the normal- and neutron-star components of massive binaries opens with a classification scheme and the analytic expressions to be applied in Paper II for computer simulation of the observable properties of such systems.

1983-03-01

338

Neutral endopeptidase inhibits prostate cancer cell migration by blocking focal adhesion kinase signaling  

UK PubMed Central (United Kingdom)

Neutral endopeptidase 24.11 (NEP, CD10) is a cell-surface enzyme expressed by prostatic epithelial cells that cleaves and inactivates neuropeptides implicated in the growth of androgen-independent prostate...Full Text Available

2000-12-01

339

Neurotensin Receptor 1 Is Expressed in Gastrointestinal Stromal Tumors but Not in Interstitial Cells of Cajal  

UK PubMed Central (United Kingdom)

Gastrointestinal stromal tumors (GIST) are thought to derive from the interstitial cells of Cajal (ICC) or an ICC precursor. Oncogenic mutations of the KIT or PDGFRA receptor tyrosine kinases are present...Full Text Available

340

Neonatal E. coli infection alters glial, cytokine, and neuronal gene expression in response to acute amphetamine in adolescent rats  

UK PubMed Central (United Kingdom)

Neonatal bacterial infection in rats alters the responses to a variety of subsequent challenges later in life. Here we explored the effects of neonatal bacterial infection on a subsequent drug...Full Text Available

2010-04-19

341

Negative dimensional integration method and massive Feynman diagrams  

Energy Technology Data Exchange (ETDEWEB)

A constructive method is proposed to solve a class of massive Feynman integrals within the Negative Dimensional Integration Method. The results are compared with the ones given by known positive D models and expressed in terms of dimensionally and analytically regularized integrals 3 refs.

1997-12-31

342

Negative Subtraction Hybridization: An efficient method to isolate large numbers of condition-specific cDNAs  

UK PubMed Central (United Kingdom)

BackgroundThe construction of cDNA libraries is a useful tool to understand gene expression in organisms under different conditions, but random sequencing of unbiased cDNA collections...Full Text Available

343

NKX2-3 Transcriptional Regulation of Endothelin-1 and VEGF Signaling in Human Intestinal Microvascular Endothelial Cells  

UK PubMed Central (United Kingdom)

BackgroundNKX2-3 is associated with inflammatory bowel disease (IBD). NKX2-3 is expressed in microvascular endothelial cells and the muscularis...Full Text Available

344

Move or Die: the Fate of the Tax Oncoprotein of HTLV-1  

UK PubMed Central (United Kingdom)

The HTLV-1 Tax protein both activates viral replication and is involved in HTLV-1-mediated transformation of T lymphocytes. The transforming properties of Tax include altering the expression of select...Full Text Available

345

Molecular cloning and functional expression of geranylgeranyl pyrophosphate synthase from Coleus forskohlii Briq  

UK PubMed Central (United Kingdom)

BackgroundIsopentenyl diphosphate (IPP), a common biosynthetic precursor to the labdane diterpene forskolin, has been biosynthesised via a non-mevalonate pathway. Geranylgeranyl...Full Text Available

346

Molecular cloning and characterization of a hemolysin gene from Actinobacillus (Haemophilus) pleuropneumoniae.  

UK PubMed Central (United Kingdom)

This article describes the molecular cloning and expression of a hemolysin gene from a serotype 1 strain of Actinobacillus pleuropneumoniae. The hemolysin was a thermolabile protein with an apparent...Full Text Available

1989-11-01

347

Molecular Identification and Expression Analysis of Filaggrin-2, a Member of the S100 Fused-Type Protein Family  

UK PubMed Central (United Kingdom)

Genes of the S100 fused-type protein (SFTP) family are clustered within the epidermal differentiation complex and encode essential components that maintain epithelial homeostasis and barrier functions....Full Text Available

348

Modulation of the human hair follicle pigmentary unit by corticotropin-releasing hormone and urocortin peptides  

UK PubMed Central (United Kingdom)

Human skin is a local source of corticotropin-releasing hormone (CRH) and expresses CRH and CRH receptors (CRH-R) at mRNA and protein levels. Epidermal melanocytes respond to CRH by induction...Full Text Available

2006-05-01

349

Modulation of ASK1 expression during overexpression of Trx and HSP70 in stressed fish liver mitochondria  

UK PubMed Central (United Kingdom)

Mitochondrial heat shock protein 70 (mtHSP70) is found to play a primary role in cellular defense against physiological stress like exposure to environmental contaminants and helpful in the maintenance...Full Text Available

2009-09-01

350

MicroRNAs and small interfering RNAs can inhibit mRNA expression by similar mechanisms  

UK PubMed Central (United Kingdom)

MicroRNAs (miRNAs) are endogenously encoded small noncoding RNAs, derived by processing of short RNA hairpins, that can inhibit the translation of mRNAs bearing partially complementary target sequences....Full Text Available

2003-08-19

351

Melanopsin-expressing retinal ganglion-cell photoreceptors: cellular diversity and role in pattern vision  

UK PubMed Central (United Kingdom)

Using the photopigment melanopsin, intrinsically photosensitive retinal ganglion cells (ipRGCs) respond directly to light to drive circadian clock resetting and pupillary constriction. We now...Full Text Available

2010-07-15

352

Mechanism of Na(+)-dependent citrate transport in Klebsiella pneumoniae.  

UK PubMed Central (United Kingdom)

Citrate transport via CitS of Klebsiella pneumoniae has been shown to depend on the presence of Na+. This transport system has been expressed in Escherichia coli, and uptake of citrate in E. coli membrane...Full Text Available

1992-08-01

353

Mapping neuropeptide expression by mass spectrometry in single dissected identified neurons from the dorsal ganglion of the nematode Ascaris suum  

UK PubMed Central (United Kingdom)

We have developed a method for dissecting single neurons from the nematode Ascaris suum, in order to determine their peptide content by mass spectrometry (MS). In this paper,...Full Text Available

2010-07-21

354

Mammalian target of rapamycin signaling modulates photic entrainment of the suprachiasmatic circadian clock  

UK PubMed Central (United Kingdom)

Inducible gene expression appears to be an essential event that couples light to entrainment of the master mammalian circadian clock located in the suprachiasmatic nucleus (SCN) of the hypothalamus....Full Text Available

2010-05-05

355

Malignant Catarrhal Fever of Cattle Is Associated with Low Abundance of IL-2 Transcript and a Predominantly Latent Profile of Ovine Herpesvirus 2 Gene Expression  

UK PubMed Central (United Kingdom)

BackgroundMalignant catarrhal fever (MCF) is a lethal disease of cattle, characterized by vasculitis, necrosis, and accumulation of activated, dysregulated cytotoxic lymphocytes...Full Text Available

356

Making the message clear: visualizing mRNA localization  

UK PubMed Central (United Kingdom)

Localized mRNA provides spatial and temporal protein expression essential to cell development and physiology. To explore the mechanisms involved, considerable effort has been spent in establishing new...Full Text Available

2010-07-01

357

Magnetic iron compounds in the human brain: a comparison of tumour and hippocampal tissue  

UK PubMed Central (United Kingdom)

Iron is a central element in the metabolism of normal and malignant cells. Abnormalities in iron and ferritin expression have been observed in many types of cancer. Interest in characterizing iron compounds...Full Text Available

2006-12-22

358

MFR, a Putative Receptor Mediating the Fusion of Macrophages  

UK PubMed Central (United Kingdom)

We had previously identified a macrophage surface protein whose expression is highly induced, transient, and specific, as it is restricted to actively fusing macrophages in vitro and in vivo. This protein...Full Text Available

1998-11-01

359

Lipocalin 2 in the central nervous system host response to systemic lipopolysaccharide administration  

UK PubMed Central (United Kingdom)

BackgroundLipocalin 2 (Lcn2) is a bacteriostatic factor that may also modulate cellular function, however, little is known concerning the expression or role of Lcn2 in CNS inflammation....Full Text Available

360

Light-Dependent Regulation of Cyanobacterial Phytochrome Expression  

UK PubMed Central (United Kingdom)

A histidine kinase protein (Cph1) with sequence homology and spectral characteristics very similar to those of the plant phytochrome has been recently identified in the cyanobacterium Synechocystis...Full Text Available

2000-01-01

361

Lifespan extension by increased expression of the Drosophila homologue of the IGFBP7 tumour suppressor  

UK PubMed Central (United Kingdom)

Mammals possess multiple insulin-like growth factor (IGF) binding proteins (IGFBPs), and related proteins, that modulate the activity of insulin/IGF signalling (IIS), a conserved neuroendocrine signalling...Full Text Available

2011-02-01

362

Lesions of the posterior bed nucleus of the stria terminalis eliminate opposite-sex odor preference and delay copulation in male Syrian hamsters: role of odor volatility and sexual experience  

UK PubMed Central (United Kingdom)

In Syrian hamsters (Mesocricetus auratus), the expression of reproductive behavior requires the perception of social odors. The behavioral response to these odors is mediated...Full Text Available

2010-08-01

363

Lentiviral vector-mediated stable expression of sTNFR-Fc in human macrophage and neuronal cells as a potential therapy for neuroAIDS  

UK PubMed Central (United Kingdom)

BackgroundHuman immunodeficiency virus type 1 (HIV-1) infection frequently causes neurologic disease, which is the result of viral replication and activation of macrophages and microglia...Full Text Available

364

Lead and ?-Aminolevulinic Acid Dehydratase Polymorphism: Where Does It Lead? A Meta-Analysis  

UK PubMed Central (United Kingdom)

BackgroundLead poisoning affects many organs in the body. Lead inhibits δ-aminolevulinic acid dehydratase (ALAD), an enzyme with two co-dominantly expressed alleles, ALAD1...Full Text Available

2007-01-01

365

Layered Functional Network Analysis of Gene Expression in Human Heart Failure  

UK PubMed Central (United Kingdom)

BackgroundAlthough dilated cardiomyopathy (DCM) is a leading cause of heart failure (HF), the mechanism underlying DCM is not well understood. Previously, it has been demonstrated...Full Text Available

366

Isoform-level microRNA-155 target prediction using RNA-seq  

UK PubMed Central (United Kingdom)

Computational prediction of microRNA targets remains a challenging problem. The existing rule-based, data-driven and expression profiling approaches to target prediction are mostly approached from the...Full Text Available

2011-05-01

367

Is alopecia areata an autoimmune-response against melanogenesis-related proteins, exposed by abnormal MHC class I expression in the anagen hair bulb?  

UK PubMed Central (United Kingdom)

The etiology of alopecia areata (AA), a putative autoimmune disease characterized by sudden hair loss, has remained obscure. It is not understood, how the characteristic inflammatory infiltrate that...Full Text Available

1993-11-01

368

Increased expression of cytosolic chaperonin CCT in human hepatocellular and colonic carcinoma  

Science.gov (United States)

... protein is abundant in cytosolic portions of malignant epithelial tissue (Fig. 3A). In contrast, the degree of CCTβ staining in normal epithelial tissue (Fig. 3B) or connective tissues was much weaker ......

369

Increased SRF transcriptional activity in human and mouse skeletal muscle is a signature of insulin resistance  

UK PubMed Central (United Kingdom)

Insulin resistance in skeletal muscle is a key phenotype associated with type 2 diabetes (T2D) for which the molecular mediators remain unclear. We therefore conducted an expression analysis of human...Full Text Available

2011-03-01

370

Increased Production and Expression of Tissue Thromboplastin-Like Procoagulant Activity In Vitro by Allogeneically Stimulated Human Leukocytes  

UK PubMed Central (United Kingdom)

Intravascular coagulation, thrombosis, and fibrin deposition often produce tissue damage in allogeneic inflammatory reactions such as allograft rejection. The mechanisms which initiate blood clotting...Full Text Available

1978-09-01

371

Increased Expression and Activity of Matrix Metalloproteinases Characterize Embolic Cardiac Myxomas  

UK PubMed Central (United Kingdom)

Tumor embolism occurs in 30 to 50% of all cases of cardiac myxoma, but the causes are still uncertain. Matrix metalloproteinases (MMPs) are proteolytic enzymes that degrade the extracellular matrix...Full Text Available

2005-06-01

372

In vivo expression and mitochondrial targeting of yeast apoiso-1-cytochrome c fusion proteins.  

UK PubMed Central (United Kingdom)

To define the import pathway for apoiso-1-cytochrome c in vivo, the coding region for bacterial chloramphenicol acetyltransferase (CAT) or yeast copper metallothionein (CuMT) was fused to the carboxy...Full Text Available

1990-11-01

373

In Vivo Modulation of T-DNA Encoded Amidohydrolase Activity in Transformed Tobacco Cells 1  

UK PubMed Central (United Kingdom)

Auxin autonomous growth of most crown gall tumor cells requires the expression of two auxin biosynthesizing genes (tms 1 and tms 2) from the T-DNA of Agrobacterium...Full Text Available

1991-04-01

374

Improving the Arabidopsis genome annotation using maximal transcript alignment assemblies  

UK PubMed Central (United Kingdom)

The spliced alignment of expressed sequence data to genomic sequence has proven a key tool in the comprehensive annotation of genes in eukaryotic genomes. A novel algorithm was developed to assemble...Full Text Available

2003-10-01

375

Immunochemical Analysis of the Temporal and Tissue-Specific Expression of an Avena sativa Plasma Membrane Determinant 1  

UK PubMed Central (United Kingdom)

An immunoglobulin Mk monoclonal (F8IVE9) antibody raised against oat (Avena sativa cv Garry) root homogenate has been produced and characterized. The predominant target...Full Text Available

1992-01-01

376

Identification of a distant cis-regulatory element controlling pharyngeal arch-specific expression of zebrafish gdf6a/radar  

UK PubMed Central (United Kingdom)

Skeletal formation is an essential and intricately regulated part of vertebrate development. Humans and mice deficient in Growth and Differentiation Factor 6 (Gdf6) have numerous...Full Text Available

2010-04-01

377

Identification of PITX1 as a TERT Suppressor Gene Located on Human Chromosome 5 ?  

UK PubMed Central (United Kingdom)

Telomerase, a ribonucleoprotein enzyme that maintains telomere length, is crucial for cellular immortalization and cancer progression. Telomerase activity is attributed primarily to the expression of...Full Text Available

2011-04-01

378

Identification of Human Prostate Cancer Stem Cells by ...  

Science.gov (United States)

... The basal markers CK5, alpha 6 integrin (CD49f), CD44, and p63 were strongly expressed by the majority of sphere-forming cells. ... p63 p63 PSCA ...

2008-04-01

379

Hyperoxia enhances VEGF release from A549 cells via post-transcriptional processes  

UK PubMed Central (United Kingdom)

Exposure of animals to hyperoxia decreases lung VEGF mRNA expression concomitant with an acute increase in VEGF protein within the epithelial lining fluid (ELF). The VEGF concentration in ELF...Full Text Available

2007-09-01

380

Human mitochondrial transcription factor A reduction and mitochondrial dysfunction in Hashimoto's hypothyroid myopathy.  

UK PubMed Central (United Kingdom)

BACKGROUND: Mitochondrial changes have been described in muscle tissue in acquired hypothyroidism. Among the molecular mechanisms by which thyroid hormones regulate expression of nuclear genes encoding...Full Text Available

2002-06-01

381

Human intronic enhancers control distinct sub-domains of Gli3 expression during mouse CNS and limb development  

UK PubMed Central (United Kingdom)

BackgroundThe zinc-finger transcription factor GLI3 is an important mediator of Sonic hedgehog signaling and crucial for patterning of many aspects of the vertebrate body plan. In...Full Text Available

382

Hsp12.6 Expression Is Inducible by Host Immunity in Adult Worms of the Parasitic Nematode Nippostrongylus brasiliensis  

UK PubMed Central (United Kingdom)

Heat shock proteins (Hsp) are a family of stress-inducible molecular chaperones that play multiple roles in a wide variety of animals. However, the roles of Hsps in parasitic nematodes remain largely...Full Text Available

383

Hormone Receptor Status in Breast Cancer and its Relation to Age and Other Prognostic Factors  

UK PubMed Central (United Kingdom)

Background:Increasing evidence shows the importance of young age, estrogen receptor (ER), progesterone receptor (PR) status, and HER-2 expression in patients with breast cancers.Patients...Full Text Available

384

Glutamate Receptor-Mediated Restoration of Experience-Dependent Place Field Expansion Plasticity in Aged Rats  

UK PubMed Central (United Kingdom)

Place fields of hippocampal pyramidal cells expand asymmetrically when adult rats repeatedly follow the same route. This behaviorally-induced expression of neuronal plasticity utilizes an NMDAR-dependent,...Full Text Available

2008-06-01

385

Glucocorticoids exacerbate hypoxia induced expression of the pro-apoptotic gene Bnip3 in the developing cortex  

UK PubMed Central (United Kingdom)

Neonatal administration of the synthetic glucocorticoid, dexamethasone (DEX) retards brain growth, alters adult behaviors and induces cell death in the rat brain, thereby implicating glucocorticoids...Full Text Available

2007-01-19

386

Global depression in gene expression as a response to rapid thermal changes in vent mussels  

UK PubMed Central (United Kingdom)

Hydrothermal vent mussels belonging to the genus Bathymodiolus are distributed worldwide and dominate communities at shallow Atlantic hydrothermal sites. While organisms inhabiting...Full Text Available

2009-09-07

387

Genomic Expression Libraries for the Identification of Cross-Reactive Orthopoxvirus Antigens  

UK PubMed Central (United Kingdom)

Increasing numbers of human cowpox virus infections that are being observed and that particularly affect young non-vaccinated persons have renewed interest in this zoonotic disease. Usually causing...Full Text Available

388

Genome-wide expression profiling reveals distinct clusters of transcriptional regulation during bovine preimplantation development in vivo  

UK PubMed Central (United Kingdom)

Bovine embryos can be generated by in vitro fertilization or somatic nuclear transfer; however, these differ from their in vivo counterparts in many aspects and exhibit a higher proportion of developmental...Full Text Available

2008-12-16

389

Genome-Wide Transcriptional Response of Chemostat-Cultured Escherichia coli to Zinc  

UK PubMed Central (United Kingdom)

Zinc is an essential trace metal ion for growth, but an excess of Zn is toxic and microorganisms express diverse resistance mechanisms. To understand global bacterial responses to excess Zn, we conducted...Full Text Available

2005-02-01

390

Genetic Analysis of Cytoprotective Functions Supported by Graded Expression of Keap1?  

UK PubMed Central (United Kingdom)

Keap1 regulates Nrf2 activity in response to xenobiotic and oxidative stresses. Nrf2 is an essential regulator of cytoprotective genes. Keap1-null mice are lethal by weaning age due...Full Text Available

2010-06-01

391

Gene-Environment Interactions and Epigenetic Basis of Human Diseases  

UK PubMed Central (United Kingdom)

Most human diseases are related in some way to the loss or gain in gene functions. Regulation of gene expression is a complex process. In addition to genetic mechanisms, epigenetic causes are...Full Text Available

2008-01-01

392

Gene expression profiling of oxidative stress response of C. elegans aging defective AMPK mutants using massively parallel transcriptome sequencing  

UK PubMed Central (United Kingdom)

BackgroundA strong association between stress resistance and longevity in multicellular organisms has been established as many mutations that extend lifespan also show increased...Full Text Available

393

Gene expression profile of rat left ventricles reveals persisting changes following chronic mild exercise protocol: implications for cardioprotection  

UK PubMed Central (United Kingdom)

BackgroundEpidemiological studies showed that physical exercise, specifically moderate lifelong training, is protective against cardiovascular morbidity and mortality. Most experimental...Full Text Available

394

Gene expression patterns in four brain areas associate with quantitative measure of estrous behavior in dairy cows  

UK PubMed Central (United Kingdom)

BackgroundThe decline noticed in several fertility traits of dairy cattle over the past few decades is of major concern. Understanding of the genomic factors underlying fertility,...Full Text Available

395

From Classical Genetics to Quantitative Genetics to Systems Biology: Modeling Epistasis  

UK PubMed Central (United Kingdom)

Gene expression data has been used in lieu of phenotype in both classical and quantitative genetic settings. These two disciplines have separate approaches to measuring and interpreting epistasis, which...Full Text Available

2008-03-01

396

Feature Selection and Classification of MAQC-II Breast Cancer and Multiple Myeloma Microarray Gene Expression Data  

UK PubMed Central (United Kingdom)

Microarray data has a high dimension of variables but available datasets usually have only a small number of samples, thereby making the study of such datasets interesting and challenging. In the task...Full Text Available

397

Expression of the ?B-Dependent General Stress Regulon Confers Multiple Stress Resistance in Bacillus subtilis  

UK PubMed Central (United Kingdom)

The alternative sigma factor ςB of Bacillus subtilis is required for the induction of approximately 100 genes after the imposition of a whole range of stresses and...Full Text Available

1999-07-01

398

Expression of leukotriene receptors in the rat dorsal root ganglion and the effects on pain behaviors  

UK PubMed Central (United Kingdom)

BackgroundLeukotrienes (LTs) belong to the large family of lipid mediators implicated in various inflammatory conditions such as asthma and rheumatoid arthritis. Four distinct types...Full Text Available

399

Expression of genes for bone morphogenetic proteins BMP-2, BMP-4 and BMP-6 in various parts of the human skeleton  

UK PubMed Central (United Kingdom)

BackgroundDifferences in duration of bone healing in various parts of the human skeleton are common experience for orthopaedic surgeons. The reason for these differences is not obvious...Full Text Available

400

Expression of a coriander desaturase results in petroselinic acid production in transgenic tobacco.  

UK PubMed Central (United Kingdom)

Little is known about the metabolic origin of petroselinic acid (18:1 delta 6cis), the principal fatty acid of the seed oil of most Umbelliferae, Araliaceae, and Garryaceae species. To examine the possibility...Full Text Available

1992-12-01

401

Expression of CD1d in human scalp skin and hair follicles: hair cycle related alterations  

UK PubMed Central (United Kingdom)

Background: CD1d belongs to a family of antigen presenting molecules that are structurally and distantly related to the classic major histocompatibility complex class I (MHC I)...Full Text Available

2005-12-01

402

Expression in E. coli and characterization of the catalytic domain of Botrytis cinerea chitin synthase  

UK PubMed Central (United Kingdom)

BackgroundChitin synthase 3a (CHS3a) from Botrytis cinerea (Bc) catalyses the multiple transfer of N-acetylglucosamine (GlcNAc) residues to the...Full Text Available

403

Expression and purification of a functional human hepatitis B virus polymerase  

UK PubMed Central (United Kingdom)

AIM: To identify a method for efficient large-scale purification of functional hepatitis B virus polymerase (HBV-Pol) without addition of cellular factors.METHODS: Full-length HBV-Pol (843 amino...Full Text Available

2010-12-07

404

Expression and Trans-Specific Polymorphism of Self-Incompatibility RNases in Coffea (Rubiaceae)  

UK PubMed Central (United Kingdom)

Self-incompatibility (SI) is widespread in the angiosperms, but identifying the biochemical components of SI mechanisms has proven to be difficult in most lineages. Coffea (coffee;...Full Text Available

405

Expression and Redistribution of Cellular Bad, Bax, and Bcl-xL Protein Is Associated with VCD-Induced Ovotoxicity in ...  

Science.gov (United States)

... were given daily i.p. injections of either sesame oil (2.5 ml/kg, vehicle control) or VCD dissolved in sesame oil (80 mg/kg, 0.57 mmol/kg) for ... ...

406

Expression Signatures of Metastatic Capacity in a Genetic Mouse Model of Lung Adenocarcinoma  

UK PubMed Central (United Kingdom)

BackgroundNon-small cell lung cancer (NSCLC) is the foremost cause of cancer-related death in Western countries, which is due partly to the propensity of NSCLC cells to metastasize....Full Text Available

407

Evolution of the redox function in mammalian Apurinic/apyrimidinic endonuclease  

UK PubMed Central (United Kingdom)

Human apurinic/apyrimidinic endonuclease (hApe1) encodes two important functional activities: an essential base excision repair (BER) activity and a redox activity that regulates expression...Full Text Available

2008-08-25

408

Evidence for proteolytic cleavage of brevican by the ADAMTSs in the dentate gyrus after excitotoxic lesion of the mouse entorhinal cortex  

UK PubMed Central (United Kingdom)

BackgroundBrevican is a member of the lectican family of aggregating extracellular matrix (ECM) proteoglycans that bear chondroitin sulfate (CS) chains. It is highly expressed in...Full Text Available

409

Epigenetic Therapies for Chemoresensitization of Epithelial Ovarian Cancer  

UK PubMed Central (United Kingdom)

SummaryEpigenetic drugs have been shown to enhance gene expression and drug sensitivity in ovarian cancer cell lines and animal models. Based on promising pre-clinical studies,...Full Text Available

2010-02-01

410

Environmental-induced acquisition of nuptial plumage expression: a role of denaturation of feather carotenoproteins?  

UK PubMed Central (United Kingdom)

Several avian species show a bright carotenoid-based coloration during spring and following a period of duller coloration during the previous winter, despite carotenoids presumably being fully deposited...Full Text Available

2005-09-22

411

Energy balances of OECD countries 1985/1986  

Energy Technology Data Exchange (ETDEWEB)

Provides standardized energy balance sheets expressed in a common unit of tons of oil equivalent for all OECD countries as well as the regions: OECD total, IEA, North America, Pacific, OECD Europe, EEC and Yugoslavia.

1988-01-01

412

Emotions run high in race for collider  

CERN Multimedia

The head of KEK expressed his dismay that SLAC has entered into a collaboration with 3 other US labs and proposes to build the next linear collider at Fermilab, Ilinois. KEK wants the next accelerator to be built somewhere in the Asian Pacific region (1 page).

2001-01-01

413

Elk-1 a Transcription Factor with Multiple Facets in the Brain  

UK PubMed Central (United Kingdom)

The ternary complex factor (TCF) Elk-1 is a transcription factor that regulates immediate early gene (IEG) expression via the serum response element (SRE) DNA consensus site. Elk-1 is associated with...Full Text Available

414

Effects of intrauterine undernutrition on hypothalamic Kiss1 expression and the timing of puberty in female rats  

UK PubMed Central (United Kingdom)

Recent studies have suggested that intrauterine undernutrition is closely associated with the pathogenesis of diseases after birth. Perinatal undernutrition is known to disturb the development of reproductive...Full Text Available

2010-03-01

415

Effects of gradual coronary artery occlusion and exercise training on gene expression in swine heart  

UK PubMed Central (United Kingdom)

Gradual occlusion (O) of the swine left circumflex coronary artery (LCX) with an ameroid occluder results in complete O within 3 weeks, collateral vessel development, and compensatory hypertrophy....Full Text Available

2007-01-01

416

Ectopic Expression of Constitutively Activated RACB in Barley Enhances Susceptibility to Powdery Mildew and Abiotic Stress1  

UK PubMed Central (United Kingdom)

Small RAC/ROP-family G proteins regulate development and stress responses in plants. Transient overexpression and RNA interference experiments suggested that the barley (Hordeum vulgare)...Full Text Available

2005-09-01

417

Early inflammatory markers in elicitation of allergic contact dermatitis  

UK PubMed Central (United Kingdom)

BackgroundAllergic Contact Dermatitis (ACD) is regarded as a T-cell-mediated delayed-type hypersensitivity reaction. We studied the kinetics of the expression of CS-1 fibronectin,...Full Text Available

418

EFFECT OF AGE ON THE ROLE OF RHO-KINASE IN SHORT TERM PARTIAL BLADDER OUTLET OBSTRUCTION  

UK PubMed Central (United Kingdom)

ObjectivesWe examined the expression of Rho Kinase (ROK) isoforms in young and old rabbit’s detrusor smooth muscles (SM) during the progression of short term...Full Text Available

2008-03-01

419

Dynamin-dependent NMDAR endocytosis during LTD and its dependence on synaptic state  

UK PubMed Central (United Kingdom)

BackgroundThe N-methyl-D-aspartate (NMDA)-type glutamate receptor expressed at excitatory glutamatergic synapses is required for learning and memory and is critical for normal brain...Full Text Available

420

Downstream genes of Pax6 revealed by comprehensive transcriptome profiling in the developing rat hindbrain  

UK PubMed Central (United Kingdom)

BackgroundThe transcription factor Pax6 is essential for the development of the central nervous system and it exerts its multiple functions by regulating the expression of downstream...Full Text Available

421

DosT and DevS are oxygen-switched kinases in Mycobacterium tuberculosis  

UK PubMed Central (United Kingdom)

Exposure of Mycobacterium tuberculosis to hypoxia is known to alter the expression of many genes, including ones thought to be involved in latency, via the transcription factor DevR...Full Text Available

2007-08-01

422

Divergent Regulation of Angiopoietin-1 and -2, Tie-2, and Thrombospondin-1 Expression by Estrogen in the Baboon Endometrium  

UK PubMed Central (United Kingdom)

SUMMARYEstrogen has an important role in the reconstruction of a new vascular network in the endometrium during each menstrual cycle; however, the underlying mechanisms...Full Text Available

2010-05-01

423

Diurnal Variations of Mouse Plasma and Hepatic Bile Acid Concentrations as well as Expression of Biosynthetic Enzymes and Transporters  

UK PubMed Central (United Kingdom)

BackgroundDiurnal fluctuation of bile acid (BA) concentrations in the enterohepatic system of mammals has been known for a long time. Recently, BAs have been recognized as signaling...Full Text Available

424

Disability and Psychologic Distress in Patients with Nonspecific and Specific Arm Pain  

UK PubMed Central (United Kingdom)

Psychological illness influences the experience and expression of pain and disability. We tested three null hypotheses: (1) patients with nonspecific pain (medically unexplained and idiopathic) and...Full Text Available

2008-11-01

425

Direct Evidence for Postmeiotic Transcription During Drosophila melanogaster Spermatogenesis  

UK PubMed Central (United Kingdom)

Extensive gene expression during meiosis is a hallmark of spermatogenesis. Although it was generally accepted that RNA transcription ceases during meiosis, recent observations suggest that some transcription...Full Text Available

2010-09-01

426

Differentially regulated malate synthase genes participate in carbon and nitrogen metabolism of S. cerevisiae.  

UK PubMed Central (United Kingdom)

We have isolated a second gene (MLS1), which in addition to DAL7, encodes malate synthase from S. cerevisiae. Expression of the two genes is specific for their physiological roles in carbon and nitrogen...Full Text Available

1992-11-11

427

Differentially expressed genes in hypothalamus in relation to genomic regions under selection in two chicken lines resulting from divergent selection for high or low body weight  

British Library Electronic Table of Contents (United Kingdom)

Long-term divergent selection for low or high body weight from the same founder population has generated two extremely divergent lines of chickens, the high- (HWS) and low-weight (LWS) selected lines. At selection age (56?days), the lines differ by more than nine times in body weight. The HWS line chickens are compulsive feeders, whereas in the LWS line, some individuals are anorexic and others have very low appetite. Previous studies have implicated the central nervous system and particularly the hypothalamus in these behavioural differences. Here, we compared the mRNA expression in hypothalamus tissue from chickens on day?4 post-hatch using oligonucleotide arrays and found that the divergent selection had resulted in minor but multiple expression differences. Differentially expressed gen...

2011-01-01

428

Differential interleukin-6/Stat3 signaling as a function of cellular context mediates Ras-induced transformation  

UK PubMed Central (United Kingdom)

IntroductionTyrosine phosphorylated signal transducer and activator of transcription 3 (pStat3) is expressed in numerous cancers and is required for mediating tumorigenesis. Autocrine...Full Text Available

2010-01-01

429

Differential expression of microRNA-675, microRNA-139-3p and microRNA-335 in benign and malignant adrenocortical tumours  

UK PubMed Central (United Kingdom)

BackgroundFor the clinical management of adrenocortical neoplasms it is crucial to correctly distinguish between benign and malignant tumours. Even histomorphologically based scoring...Full Text Available

2011-06-01

430

Differential expression of Haemophilus parasuis genes in response to iron restriction and cerebrospinal fluid  

UK PubMed Central (United Kingdom)

Haemophilus parasuis is an important opportunistic pathogen in swine of high health status, but to date no proven virulence factors have been described. As virulence factors are known...Full Text Available

2007-07-01

431

Differential Gene Expression in Primary Human Skin Keratinocytes and Fibroblasts in Response to Ionizing Radiation  

UK PubMed Central (United Kingdom)

Although skin is usually exposed during human exposures to ionizing radiation, there have been no thorough examinations of the transcriptional response of skin fibroblasts and keratinocytes...Full Text Available

2009-07-01

432

Diet-induced changes in uncoupling proteins in obesity-prone and obesity-resistant strains of mice  

UK PubMed Central (United Kingdom)

Uncoupling protein 2 (UCP2) maps to a region on distal mouse chromosome 7 that has been linked to the phenotypes of obesity and type II diabetes. We recently reported that UCP2 expression is increased...Full Text Available

1998-03-31

433

Developmental and Light Regulation of Desacetoxyvindoline 4-Hydroxylase in Catharanthus roseus (L.) G. Don.1  

UK PubMed Central (United Kingdom)

The expression of desacetoxyvindoline 4-hydroxylase (D4H), which catalyzes the second to the last reaction in vindoline biosynthesis in Catharanthus roseus, appears to be under complex,...Full Text Available

1998-08-01

434

Developmental Changes in Pituitary Adenylate Cyclase Activating Polypeptide Expression during the Perinatal Period: Possible Role in Fetal Gonadotroph Regulation  

UK PubMed Central (United Kingdom)

Normal reproductive functioning may require secretion of LH independently of FSH. Variation in GnRH pulse frequency and inhibin negative feedback are mechanisms for differential gonadotropin regulation;...Full Text Available

2009-10-01

435

Development of melanopsin-based irradiance detecting circuitry  

UK PubMed Central (United Kingdom)

BackgroundMost retinal ganglion cells (RGCs) convey contrast and motion information to visual brain centers. Approximately 2% of RGCs are intrinsically photosensitive (ipRGCs), express...Full Text Available

436

Development of a novel data mining tool to find cis-elements in rice gene promoter regions  

UK PubMed Central (United Kingdom)

BackgroundInformation on more than 35 000 full-length Oryza sativa cDNAs, together with associated microarray gene expression data collected under various treatment...Full Text Available

437

Delineating Bacteriostatic and Bactericidal Targets in Mycobacteria Using IPTG Inducible Antisense Expression  

UK PubMed Central (United Kingdom)

In order to identify novel high value antibacterial targets it is desirable to delineate whether the inactivation of the target enzyme will lead to bacterial death or stasis. This knowledge is particularly...Full Text Available

438

Decentralized Data Sharing of Tissue Microarrays for Investigative Research in Oncology  

UK PubMed Central (United Kingdom)

Tissue microarray technology (TMA) is a relatively new approach for efficiently and economically assessing protein and gene expression across large ensembles of tissue specimens. Tissue microarray technology...Full Text Available

439

DNA methylation and gene expression differences in children conceived in vitro or in vivo  

UK PubMed Central (United Kingdom)

Epidemiological data indicate that children conceived in vitro have a greater relative risk of low birth-weight, major and minor birth defects, and rare disorders involving imprinted...Full Text Available

2009-10-15

440

Cytokinin-Dependent Photorespiration and the Protection of Photosynthesis during Water Deficit1[W][OA  

UK PubMed Central (United Kingdom)

We investigated the effects of PSARK∷IPT (for Senescence-Associated Receptor Kinase∷Isopentenyltransferase) expression and cytokinin production...Full Text Available

2009-07-01

441

Cutaneous expression of Thy-1 in mycosis fungoides.  

UK PubMed Central (United Kingdom)

Dermal dendritic cells from eleven cases of mycosis fungoides (MF) (six patch and five plaque stage), two cases of pre-MF, and five specimens of normal human skin, were characterized immunohistochemically...Full Text Available

1992-12-01

442

Crystallization and preliminary X-ray analysis of human liver ?-enolase  

UK PubMed Central (United Kingdom)

Enolase is a multifunctional enzyme that plays important roles in many biological and disease processes. α-Enolase from human liver (hENO1) was expressed as a soluble protein and purified by...Full Text Available

443

Corticosteroid can alter antigen expression on alveolar macrophages.  

UK PubMed Central (United Kingdom)

Normal healthy volunteers underwent broncho-alveolar lavage and the cells obtained were cultured for 24 h and 48 h, either alone or in the presence of the corticosteroid, Budesonide. Cell differentials...Full Text Available

1991-09-01

444

Coordinated Increased Expression of Cyclooxygenase2 and Nuclear Factor ?B Is a Steady Feature of Urinary Bladder Carcinogenesis  

UK PubMed Central (United Kingdom)

Objectives. The inescapable relationship between chronic inflammation and carcinogenesis has long been established. Our objective was to investigate COX-2 and NF-κB...Full Text Available

2010-01-01

445

Continuous monitoring of receptor-mediated changes in the metabolic rates of living cells.  

UK PubMed Central (United Kingdom)

Activation of beta-adrenergic or muscarinic acetylcholine receptors expressed in transfected cells or epidermal growth factor receptors in human keratinocytes produces 15% to 200% changes in cellular...Full Text Available

1990-05-01

446

Conserved Alternative Splicing and Expression Patterns of Arthropod N-Cadherin  

UK PubMed Central (United Kingdom)

Metazoan development requires complex mechanisms to generate cells with diverse function. Alternative splicing of pre-mRNA not only expands proteomic diversity but also provides a means to regulate...Full Text Available

2009-04-01

447

Complete sequence of the chicken glyceraldehyde-3-phosphate dehydrogenase gene.  

UK PubMed Central (United Kingdom)

Glyceraldehyde-3-phosphate dehydrogenase (GAPDH), an evolutionarily conserved glycolytic enzyme, is constitutively expressed in most cell types yet is induced to high levels during the development of...Full Text Available

1985-03-01

448

Comparative optimism in models involving both classical clinical and gene expression information  

UK PubMed Central (United Kingdom)

BackgroundIn cancer research, most clinical variables have already been investigated and are now well established. The use of transcriptomic variables has raised two problems: restricting...Full Text Available

449

Comparative analysis of differentially expressed genes in normal and white spot syndrome virus infected Penaeus monodon  

UK PubMed Central (United Kingdom)

BackgroundWhite spot syndrome (WSS) is a viral disease that affects most of the commercially important shrimps and causes serious economic losses to the shrimp farming industry worldwide....Full Text Available

450

Comparative analysis of cis-regulation following stroke and seizures in subspaces of conserved eigensystems  

UK PubMed Central (United Kingdom)

BackgroundIt is often desirable to separate effects of different regulators on gene expression, or to identify effects of the same regulator across several systems. Here, we focus...Full Text Available

451

Comparative Transcriptional and Genomic Analysis of Plasmodium falciparum Field Isolates  

UK PubMed Central (United Kingdom)

Mechanisms for differential regulation of gene expression may underlie much of the phenotypic variation and adaptability of malaria parasites. Here we describe transcriptional variation among culture-adapted...Full Text Available

2009-10-01

452

Coccygodynia.  

UK PubMed Central (United Kingdom)

Ten coccygectomies were performed. Patients were all females (aged 26-74, average 46). All patients expressed satisfaction after the operation (one was deceased at the time of follow up). The material...Full Text Available

1996-05-01

453

Clustering gene expression data with a penalized graph-based metric  

UK PubMed Central (United Kingdom)

BackgroundThe search for cluster structure in microarray datasets is a base problem for the so-called "-omic sciences". A difficult problem in clustering is how to handle data with...Full Text Available

454

Cluster Analysis of Gene Expression Data  

CERN Document Server

The expression levels of many thousands of genes can be measured simultaneously by DNA microarrays (chips). This novel experimental tool has revolutionized research in molecular biology and generated considerable excitement. A typical experiment uses a few tens of such chips, each dedicated to a single sample - such as tissue extracted from a particular tumor. The results of such an experiment contain several hundred thousand numbers, that come in the form of a table, of several thousand rows (one for each gene) and 50 - 100 columns (one for each sample). We developed a clustering methodology to mine such data. In this review I provide a very basic introduction to the subject, aimed at a physics audience with no prior knowledge of either gene expression or clustering methods. I explain what genes are, what is gene expression and how it is measured by DNA chips. Next I explain what is meant by "clustering" and how we analyze ...

2002-01-01

455

Cloning of the mouse hepatitis virus (MHV) receptor: expression in human and hamster cell lines confers susceptibility to MHV.  

UK PubMed Central (United Kingdom)

The cellular receptor for murine coronavirus mouse hepatitis virus (MHV)-A59 is a member of the carcinoembryonic antigen (CEA) family of glycoproteins in the immunoglobulin superfamily. We isolated...Full Text Available

1991-12-01

456

Cloning of an insecticidal cholesterol oxidase gene and its expression in bacteria and in plant protoplasts.  

UK PubMed Central (United Kingdom)

We cloned and sequenced structural gene choM, which encodes an insecticidally active cholesterol oxidase in Streptomyces sp. strain A19249. The primary translation product was predicted to be a 547-amino-acid...Full Text Available

1994-12-01

457

Cloning and expression of the gene for the Avi-3 antigen of Mycobacterium avium and mapping of its epitopes.  

UK PubMed Central (United Kingdom)

The Avi-3 antigen, which is found only in Mycobacterium avium culture sonic extracts, is species specific and results in strong skin test activity in guinea pigs sensitized with heat-killed M. avium....Full Text Available

1992-03-01

458

Cloning and expression of portions of the 34-kilodalton-protein gene of Mycobacterium paratuberculosis: its application to serological analysis of Johne's disease.  

UK PubMed Central (United Kingdom)

Paratuberculosis (Johne's disease), an endemic mycobacteriosis of cattle that is caused by Mycobacterium paratuberculosis, is characterized by incoercible diarrhea and fecal shedding of bacteria. The...Full Text Available

1993-04-01

459

Chronic Cocaine-Induced H3 Acetylation and Transcriptional Activation of CaMKII? in the Nucleus Accumbens Is Critical for Motivation for Drug Reinforcement  

UK PubMed Central (United Kingdom)

The regulation of gene expression in the brain reward regions is known to contribute to the pathogenesis and persistence of drug addiction. Increasing evidence suggests that the regulation of gene transcription...Full Text Available

2010-03-01

460

Cholinergic Interneurons Mediate Fast VGluT3-Dependent Glutamatergic Transmission in the Striatum  

UK PubMed Central (United Kingdom)

The neurotransmitter glutamate is released by excitatory projection neurons throughout the brain. However, non-glutamatergic cells, including cholinergic and monoaminergic neurons, express markers that...Full Text Available

461

Chimeric Antigen Receptor Therapy for B-cell Malignancies  

UK PubMed Central (United Kingdom)

We presented data showing that the CART-19 cells expressing the 4-1BB signaling domain can have unprecedented and massive in-vivo expansion, traffic to tumor sites, persist long term in vivo, and induce...Full Text Available

462

Characterization, phylogeny, alternative splicing and expression of Sox30 gene  

UK PubMed Central (United Kingdom)

BackgroundMembers of the Sox gene family isolated from both vertebrates and invertebrates have been proved to participate in a wide variety of developmental processes, including...Full Text Available

463

Characterization of the Decision Network for Wing Expansion in Drosophila Using Targeted Expression of the TRPM8 Channel  

UK PubMed Central (United Kingdom)

After emergence, adult flies and other insects select a suitable perch and expand their wings. Wing expansion is governed by the hormone bursicon and can be delayed under adverse environmental...Full Text Available

2009-03-18

464

Characterization of a Chromosomally Encoded Extended-Spectrum Class A ?-Lactamase from Kluyvera cryocrescens  

UK PubMed Central (United Kingdom)

A chromosomally located β-lactamase gene, cloned and expressed in Escherichia coli from a reference strain of the enterobacterial species Kluyvera cryocrescens,...Full Text Available

2001-12-01

465

Characterization of Terfestatin A, a New Specific Inhibitor for Auxin Signaling1[w  

UK PubMed Central (United Kingdom)

Terfestatin A (TrfA), terphenyl-β-glucoside, was isolated from Streptomyces sp. F40 in a forward screen for compounds that inhibit the expression of auxin-inducible...Full Text Available

2005-10-01

466

Cd36, a class B scavenger receptor, functions as a monomer to bind acetylated and oxidized low-density lipoproteins  

UK PubMed Central (United Kingdom)

Cd36 is a small-molecular-weight integral membrane protein expressed in a diverse, but select, range of cell types. It has an equally diverse range of ligands and physiological functions, which has...Full Text Available

2007-11-01

467

Cbk1 regulation of the RNA binding protein Ssd1 integrates cell fate with translational control  

UK PubMed Central (United Kingdom)

SummarySpatial control of gene expression, at the level of both transcription and translation, is critical for cellular differentiation [1-Full Text Available

2009-12-29

468

Brg1 Is Required for Cdx2-Mediated Repression of Oct4 Expression in Mouse Blastocysts  

UK PubMed Central (United Kingdom)

During blastocyst formation the segregation of the inner cell mass (ICM) and trophectoderm is governed by the mutually antagonistic effects of the transcription factors Oct4 and Cdx2. Evidence indicates...Full Text Available

469

Brain transcriptomic analysis in paper wasps identifies genes associated with behaviour across social insect lineages  

UK PubMed Central (United Kingdom)

Comparative sociogenomics has the potential to provide important insights into how social behaviour evolved. We examined brain gene expression profiles of the primitively eusocial wasp Polistes...Full Text Available

2010-07-22

470

Both common and specialty mushrooms inhibit adhesion molecule expression and in vitro binding of monocytes to human aortic endothelial cells in a pro-inflammatory environment  

UK PubMed Central (United Kingdom)

BackgroundCardiovascular disease (CVD) is a leading cause of mortality in the United States as well as globally. Epidemiological studies show that regular fruit and vegetable consumption...Full Text Available

471

Biosynthesis and Uptake of Siderophores Is Controlled by the PacC-Mediated Ambient-pH Regulatory System in Aspergillus nidulans  

UK PubMed Central (United Kingdom)

Biosynthesis and uptake of siderophores in Aspergillus nidulans are regulated not only by iron availability but also by ambient pH: expression of this high-affinity iron uptake system...Full Text Available

2004-04-01

472

Biophysical characterization of recombinant proteins: A key to higher structural genomics success  

UK PubMed Central (United Kingdom)

Hundreds of genomes have been successfully sequenced to date, and the data are publicly available. At the same time, the advances in large-scale expression and purification of recombinant proteins have...Full Text Available

2010-10-01

473

Biochemical characterization of the molecular interaction between recombinant basic fibroblast growth factor and a recombinant soluble fibroblast growth factor receptor.  

UK PubMed Central (United Kingdom)

The extracellular domain of human fibroblast growth factor receptor (XC-FGF-R) was expressed in Escherichia coli. The protein was purified to homogeneity and the interaction with basic fibroblast growth...Full Text Available

1993-09-15

474

Bacterial Artificial Chromosome Mutagenesis Using Recombineering  

UK PubMed Central (United Kingdom)

Gene expression from bacterial artificial chromosome (BAC) clones has been demonstrated to facilitate physiologically relevant levels compared to viral and nonviral cDNA vectors. BACs are large enough...Full Text Available

2011-01-01

475

Astrocyte-Derived Vascular Endothelial Growth Factor Stabilizes Vessels in the Developing Retinal Vasculature  

UK PubMed Central (United Kingdom)

Vascular endothelial growth factor (VEGF) plays a critical role in normal development as well as retinal vasculature disease. During retinal vascularization, VEGF is most strongly expressed by not yet...Full Text Available

476

Are Petals Sterile Stamens or Bracts? The Origin and Evolution of Petals in the Core Eudicots  

UK PubMed Central (United Kingdom)

BackgroundThe aim of this paper is to discuss the controversial origins of petals from tepals or stamens and the links between the morphological expression of petals and floral organ...Full Text Available

2007-09-01

477

Arabidopsis thaliana Chromosome 4 Replicates in Two Phases That Correlate with Chromatin State  

UK PubMed Central (United Kingdom)

DNA replication programs have been studied extensively in yeast and animal systems, where they have been shown to correlate with gene expression and certain epigenetic modifications. Despite the conservation...Full Text Available

2010-06-01

478

Antagonistic Gcn5-Hda1 interactions revealed by mutations to the Anaphase Promoting Complex in yeast  

UK PubMed Central (United Kingdom)

BackgroundHistone post-translational modifications are critical for gene expression and cell viability. A broad spectrum of histone lysine residues have been identified in yeast...Full Text Available

479

Analysis of illegitimate genomic integration mediated by zinc-finger nucleases: implications for specificity of targeted gene correction  

UK PubMed Central (United Kingdom)

BackgroundFormation of site specific genomic double strand breaks (DSBs), induced by the expression of a pair of engineered zinc-finger nucleases (ZFNs), dramatically increases the...Full Text Available

480

An integrative multi-dimensional genetic and epigenetic strategy to identify aberrant genes and pathways in cancer  

UK PubMed Central (United Kingdom)

BackgroundGenomics has substantially changed our approach to cancer research. Gene expression profiling, for example, has been utilized to delineate subtypes of cancer, and facilitated...Full Text Available

481

Aminoglycoside Efflux in Pseudomonas aeruginosa: Involvement of Novel Outer Membrane Proteins  

UK PubMed Central (United Kingdom)

The expression of tripartite multidrug efflux pumps such as MexA-MexB-OprM in Pseudomonas aeruginosa contributes to intrinsic resistance to a wide variety of antimicrobials, including...Full Text Available

2003-03-01

482

Algebraic analysis of the electromagnetic wave interaction with the two-level system with two-fold degenerated states  

Energy Technology Data Exchange (ETDEWEB)

Algebraic properties of the analytical model, describing electro-magnetic weak interaction with the two-level system with two-fold degenerate state are considered. The expressions for the coherent states and Green function of the system are obtained.

1989-04-20

483

Agmatine attenuates brain edema through reducing the expression of aquaporin-1 after cerebral ischemia  

UK PubMed Central (United Kingdom)

Brain edema is frequently shown after cerebral ischemia. It is an expansion of brain volume because of increasing water content in brain. It causes to increase mortality after stroke. Agmatine, formed...Full Text Available

2010-05-01

484

Age-dependent changes in Ca2+ homeostasis in peripheral neurones: implications for changes in function  

UK PubMed Central (United Kingdom)

Calcium ions represent universal second messengers within neuronal cells integrating multiple cellular functions, such as release of neurotransmitters, gene expression, proliferation, excitability,...Full Text Available

2007-06-01

485

Advantage and Choice: Social Relationships and Staff Assistance in Assisted Living  

UK PubMed Central (United Kingdom)

Objectives.To understand how “cumulative inequality” (CI), expressed as individual advantage and choice, and “external social supports” contribute...Full Text Available

2010-05-01

486

Advances in cancer tissue microarray technology: Towards improved understanding and diagnostics  

UK PubMed Central (United Kingdom)

Over the past few years, tissue microarray (TMA) technology has been established as a standard method for assessing the expression of proteins or genes across large sets of tissue specimens....Full Text Available

2006-03-30

487

Adipose Tissue Gene Expression of Factors Related to Lipid Processing in Obesity  

UK PubMed Central (United Kingdom)

BackgroundAdipose tissue lipid storage and processing capacity can be a key factor for obesity-related metabolic disorders such as insulin resistance and diabetes. Lipid uptake is...Full Text Available

488

Acute Ozone-Induced Differential Gene Expression Profiles in Rat Lung  

UK PubMed Central (United Kingdom)

Ozone (O3) is an oxidant gas that can directly induce lung injury. Knowledge of the initial molecular events of the acute O3 response would be useful in developing biomarkers of...Full Text Available

2005-12-01

489

Actin-like sequences are present on human X and Y chromosomes.  

UK PubMed Central (United Kingdom)

The human genome contains greater than 20 actin-related sequences, six of which at least are expressed as protein. We have shown by blot hybridization the presence of actin-like sequences on both the...Full Text Available

1984-08-01

490

Acetylation of Histones and Transcription-Related Factors  

UK PubMed Central (United Kingdom)

The state of chromatin (the packaging of DNA in eukaryotes) has long been recognized to have major effects on levels of gene expression, and numerous chromatin-altering strategies—including...Full Text Available

2000-06-01

491

Abnormalities of GATA-1 in Megakaryocytes from Patients with Idiopathic Myelofibrosis  

UK PubMed Central (United Kingdom)

The abnormal megakaryocytopoiesis associated with idiopathic myelofibrosis (IM) plays a role in its pathogenesis. Because mice with defective expression of transcription factor GATA-1 (GATA-1low...Full Text Available

2005-09-01

492

AICD Overexpression in Neuro 2A Cells Regulates Expression of PTCH1 and TRPC5  

UK PubMed Central (United Kingdom)

Amyloid precursor protein (APP), implicated in Alzheimer's disease, is a transmembrane protein of undetermined function. APP is cleaved by gamma-secretase that releases the APP intracellular domain...Full Text Available

493

A novel fluorescent pH probe for expression in plants  

UK PubMed Central (United Kingdom)

BackgroundThe pH is an important parameter controlling many metabolic and signalling pathways in living cells. Recombinant fluorescent pH indicators (pHluorins) have come into vogue...Full Text Available

494

A gene expression signature shared by human mature oocytes and embryonic stem cells  

UK PubMed Central (United Kingdom)

BackgroundThe first week of human pre-embryo development is characterized by the induction of totipotency and then pluripotency. The understanding of this delicate process will have...Full Text Available

495

A gene encoding a protein modified by the phytohormone indoleacetic acid  

UK PubMed Central (United Kingdom)

We show that the expression of an indole-3-acetic acid (IAA)-modified protein from bean seed, IAP1, is correlated to the developmental period of rapid growth during seed development. Moreover, this...Full Text Available

2002-02-05

496

A convenient and sensitive allergy test: IgE crosslinking-induced luciferase expression in cultured mast cells  

UK PubMed Central (United Kingdom)

BackgroundFor the detection of allergen-specific IgE in sera, solid-phase IgE-binding assays like the CAP test are commonly used. Although such immunochemical methods are very sensitive,...Full Text Available

2010-10-01

497

A Turquoise Mutant Genetically Separates Expression of Genes Encoding Phycoerythrin and Its Associated Linker Peptides  

UK PubMed Central (United Kingdom)

During complementary chromatic adaptation (CCA), cyanobacterial light harvesting structures called phycobilisomes are restructured in response to ambient light quality shifts. Transcription of genes...Full Text Available

2002-02-01

498

A Mouse Model Expressing a Truncated Form of Ameloblastin Exhibits Dental and Junctional Epithelium Defects  

UK PubMed Central (United Kingdom)

SUMMARYAmeloblastin (AMBN) is the second most abundant extracellular matrix protein produced by the epithelial cells called ameloblasts and is found mainly in forming dental enamel....Full Text Available

2009-06-01

499

A Latent Variable Approach for Meta-Analysis of Gene Expression Data from Multiple Microarray Experiments  

UK PubMed Central (United Kingdom)

BackgroundWith the explosion in data generated using microarray technology by different investigators working on similar experiments, it is of interest to combine results across...Full Text Available

500

A Cellular J-Domain Protein Modulates Polyprotein Processing and Cytopathogenicity of a Pestivirus  

UK PubMed Central (United Kingdom)

Pestiviruses are positive-strand RNA viruses closely related to human hepatitis C virus. Gene expression of these viruses occurs via translation of a polyprotein, which is further processed by cellular...Full Text Available

2001-10-01