In vitro humanized 3D microfluidic chip for testing personalized immunotherapeutics for head and neck cancer patients

Exp Cell Res. 2019 Oct 15;383(2):111508. doi: 10.1016/j.yexcr.2019.111508. Epub 2019 Jul 26.

Abstract

Objectives: Immunotherapy and personalized medicine therapeutics are emerging as promising approaches in the management of head and neck squamous cell carcinoma (HNSCC). In spite of that, there is yet no assay that could predict individual response to immunotherapy.

Methods: We manufactured an in vitro 3D microfluidic chip to test the efficacy of immunotherapy. The assay was first tested using a tongue cancer cell line (HSC-3) embedded in a human tumour-derived matrix "Myogel/fibrin" and immune cells from three healthy donors. Next, the chips were used with freshly isolated cancer cells, patients' serum and immune cells. Chips were loaded with different immune checkpoint inhibitors, PD-L1 antibody and IDO 1 inhibitor. Migration of immune cells towards cancer cells and the cancer cell proliferation rate were evaluated.

Results: Immune cell migration towards HSC-3 cells was cancer cell density dependent. IDO 1 inhibitor induced immune cells to migrate towards cancer cells both in HSC-3 and in two HNSCC patient samples. Efficacy of PD-L1 antibody and IDO 1 inhibitor was patient dependent.

Conclusion: We introduced the first humanized in vitro microfluidic chip assay to test immunotherapeutic drugs against HNSCC patient samples. This assay could be used to predict the efficacy of immunotherapeutic drugs for individual patients.

Keywords: Head and neck cancer; IDO1; Immunotherapy; In vitro; Microfuidic chip; PD-L1; Personalized medicine.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Aged, 80 and over
  • Antineoplastic Agents, Immunological / isolation & purification
  • Antineoplastic Agents, Immunological / therapeutic use*
  • Biomarkers, Pharmacological / analysis
  • Cell Migration Assays / instrumentation
  • Cell Migration Assays / methods
  • Cell Movement / drug effects
  • Coculture Techniques / instrumentation
  • Coculture Techniques / methods
  • Drug Screening Assays, Antitumor / instrumentation
  • Drug Screening Assays, Antitumor / methods
  • Equipment Design
  • Female
  • Head and Neck Neoplasms / diagnosis
  • Head and Neck Neoplasms / pathology*
  • Head and Neck Neoplasms / therapy
  • Humans
  • Immunologic Factors / isolation & purification
  • Immunologic Factors / therapeutic use
  • Immunotherapy* / instrumentation
  • Immunotherapy* / methods
  • Lab-On-A-Chip Devices*
  • Male
  • Microfluidics / instrumentation
  • Microfluidics / methods
  • Middle Aged
  • Precancerous Conditions / diagnosis
  • Precancerous Conditions / drug therapy
  • Precancerous Conditions / pathology
  • Precision Medicine* / instrumentation
  • Precision Medicine* / methods
  • Primary Cell Culture / instrumentation
  • Primary Cell Culture / methods*
  • Prognosis
  • Squamous Cell Carcinoma of Head and Neck / diagnosis
  • Squamous Cell Carcinoma of Head and Neck / pathology*
  • Squamous Cell Carcinoma of Head and Neck / therapy
  • Tissue Scaffolds
  • Tumor Cells, Cultured

Substances

  • Antineoplastic Agents, Immunological
  • Biomarkers, Pharmacological
  • Immunologic Factors