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When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
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Related Experiment Video

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The hepatic microenvironment and regulatory T cells.

Daniel Osei-Bordom1, Amber G Bozward2, Ye Htun Oo1

  • 1Centre for Liver Research and NIHR BRC, Institute of Immunology and Immunotherapy, University of Birmingham, United Kingdom; European Reference Network Centre: Rare Liver, United Kingdom; Queen Elizabeth Hospital, University Hospital of Birmingham NHS Foundation Trust, United Kingdom.

Cellular Immunology
|August 31, 2020
PubMed
Summary

The liver acts as a lymphoid organ, with regulatory T cells (Tregs) crucial for immune tolerance. Understanding the inflamed liver microenvironment is key to improving Treg stability and enhancing cell therapies for liver diseases.

Keywords:
ChemokinesCytokinesHepatic microenvironmentLactic acidMetabolitesMicrobesPlasticityRegulatory T cells

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Area of Science:

  • Immunology
  • Hepatology
  • Cell Therapy

Background:

  • The human liver functions as a lymphoid organ, influencing local and systemic immune responses.
  • The hepatic microenvironment hosts immune cells, including regulatory T cells (Tregs), and maintains immune tolerance despite gut microbial product influx.
  • The stability, function, and survival of Tregs within an inflamed liver microenvironment are not well understood.

Purpose of the Study:

  • To investigate the role and behavior of regulatory T cells (Tregs) in the hepatic microenvironment.
  • To understand the challenges Tregs face in an inflamed liver.
  • To identify strategies for improving Treg-based immunotherapies for liver diseases.

Main Methods:

  • Analysis of intrahepatic immune cells, focusing on regulatory T cells (Tregs).
  • Characterization of the hepatic microenvironment, including cytokines, chemokines, and metabolites.
  • Exploration of Treg stability, function, and survival in inflamed conditions.

Main Results:

  • Regulatory T cells (Tregs) are vital for maintaining hepatic immune tolerance.
  • The inflamed hepatic microenvironment presents challenges to Treg stability and function.
  • Further research into the hepatic microenvironment is needed to optimize Treg immunotherapy.

Conclusions:

  • Modifying the inflamed hepatic microenvironment could enhance Treg stability and function.
  • Improved Treg stability and function are expected to lead to better clinical outcomes in liver disease treatment.
  • Treg immunotherapy holds promise for autoimmune and immune-mediated liver diseases, contingent on optimizing the therapeutic environment.