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Related Experiment Video

Updated: Jun 12, 2025

Isolation and Th17 Differentiation of Naïve CD4 T Lymphocytes
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Exercise, autoimmune diseases and T-regulatory cells.

Miri Blank1, Daphna Israeli2, Yehuda Shoenfeld1

  • 1Zabludowicz Centre for Autoimmune Diseases, Sheba Medical Centre, Tel-Hashomer, Israel; Reichman University, Herzelia, Israel.

Journal of Autoimmunity
|September 20, 2024
PubMed
Summary
This summary is machine-generated.

Regular physical activity enhances regulatory T cells (Tregs), crucial for immune tolerance. Exercise promotes a stable Treg phenotype, potentially protecting against autoimmune diseases through muscle-Treg crosstalk and extracellular vesicle signaling.

Keywords:
AutoimmunityExtracellular vesiclesMusclesPhysical exerciseT regulatory cells

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Area of Science:

  • Immunology
  • Exercise Physiology
  • Autoimmune Diseases

Background:

  • T regulatory cells (Tregs) are vital for maintaining immune tolerance in autoimmune conditions.
  • Physical activity is recognized for its role in modulating Treg numbers and functions.
  • Muscle-derived myokines and extracellular vesicles (EVs) play a role in immune regulation.

Purpose of the Study:

  • To explore the impact of physical activity on Treg enhancement and function.
  • To elucidate the mechanisms of muscle-Treg crosstalk in maintaining immune homeostasis.
  • To investigate the role of EVs in mediating exercise-induced protection against autoimmunity.

Main Methods:

  • Review of current literature on exercise, Tregs, and autoimmune diseases.
  • Analysis of myokine and extracellular vesicle secretion by muscle and Tregs.
  • Examination of IL-6 receptor alpha (IL6Rα) signaling in skeletal muscle Tregs.

Main Results:

  • Exercise promotes the development of highly functional and stable muscle Treg phenotypes.
  • IL-6 receptor alpha (IL6Rα) signaling is essential for Treg control over muscle function and regeneration.
  • Muscle and Treg-derived EVs facilitate intercellular communication, delivering protective molecules.

Conclusions:

  • The interplay between Tregs and skeletal muscle following exercise is critical for balancing immune tolerance and autoimmunity.
  • Exercise-induced Treg enhancement and muscle-Treg cross-talk contribute to immune homeostasis.
  • Extracellular vesicles secreted by muscle and Tregs may offer protection against autoimmune diseases.