Patient-derived precision cut tissue slices from primary liver cancer as a potential platform for preclinical drug

Ravi Jagatia1, Ewald J Doornebal1, Una Rastovic1

  • 1The Roger Williams Institute of Hepatology, Foundation for Liver Research, 111, Coldharbour Lane, London SE5 9NT, United Kingdom; Faculty of Life Sciences and Medicine, King's College London, London WC2R 2LS, United Kingdom.

Ebiomedicine
|October 8, 2023
PubMed
Abstract

Insights

A new patient-specific immunocompetent model using human precision-cut tissue slices (PCTS) effectively mimics primary liver cancer (PLC) and its microenvironment. This robust preclinical tool aids in developing novel immunotherapies for PLC.

Area of Science:

  • Oncology
  • Immunology
  • Preclinical Research

Background:

  • Immunomodulatory therapies have transformed primary liver cancer (PLC) treatment, yet preclinical models face challenges.
  • There is a critical need for new, immunologically relevant PLC models to advance translational research and personalized medicine.

Purpose of the Study:

  • To develop and characterize a patient-specific immunocompetent disease model for primary liver cancer (PLC).
  • To assess the utility of this model for evaluating immunotherapeutic strategies and drug discovery.

Main Methods:

  • Human precision-cut tissue slices (PCTS) from resected PLC tumors were cultured ex vivo.
  • Longitudinal assessment of tissue architecture, viability, immune cell infiltrate, and response to therapies over 8 days.
  • Analysis included histology, proliferation/cell death markers, ATP content, PCR, immunofluorescence, and checkpoint receptor expression.

Main Results:

  • Optimized PCTS cultures maintained original tissue architecture, including tumor morphology, stroma, and leukocytes.
  • The model retained tumor-specific immunophenotype during culture, demonstrating its suitability for immunotherapy studies.
  • PCTS proved effective in investigating immunotherapeutic drug efficacy and identifying non-responders.

Conclusions:

  • The characterized PCTS model is a robust preclinical tool for primary liver cancer (PLC) research.
  • This model will significantly support the development of effective immunotherapeutic strategies for PLC.
  • It aids in predicting treatment response and advancing personalized medicine approaches.

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