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Related Experiment Video

Updated: Feb 11, 2026

Tension Gauge Tether Probes for Quantifying Growth Factor Mediated Integrin Mechanics and Adhesion

Tension Gauge Tether Probes for Quantifying Growth Factor Mediated Integrin Mechanics and Adhesion

Published on: February 11, 2022

Integrin Activation Controls Regulatory T Cell-Mediated Peripheral Tolerance.

Jane E Klann¹, Stephanie H Kim¹, Kelly A Remedios¹

¹Department of Medicine, University of California, San Diego, La Jolla, CA 92093.

Journal of Immunology (Baltimore, Md. : 1950)

|April 29, 2018

Summary

Integrin activation is crucial for regulatory T (Treg) cell function and maintaining immune tolerance. Disrupting this process leads to severe autoimmunity, highlighting its therapeutic potential.

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Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells

Generation of Induced Regulatory T Cells from Primary Human Naïve and Memory T Cells

Published on: April 16, 2012

Area of Science:

Immunology
Cell Biology
Molecular Biology

Background:

Regulatory T (Treg) cells are vital for preventing autoimmunity and maintaining peripheral tolerance.
Integrins mediate cell-cell and cell-matrix interactions, crucial for Treg cell function.
The precise role of integrin activation in Treg cell function was previously unappreciated.

Purpose of the Study:

To investigate the essential role of integrin activation in maintaining murine Treg cell function.
To explore the consequences of abrogating integrin activation on Treg cell-mediated immune tolerance.
To assess the therapeutic potential of modulating integrin activation in Treg cells.

Main Methods:

Treg cell-specific knockout of talin, a key integrin-binding protein.
Expression of a talin mutant (talin(L325R)) that selectively abrogates integrin activation.
Analysis of Treg cell function, systemic autoimmunity, and Treg cell transcriptome.

Main Results:

Loss of talin or expression of talin(L325R) in Treg cells led to lethal systemic autoimmunity.
This autoimmune phenotype was associated with global dysregulation of the Treg cell transcriptome.
Activation of integrin α4β1 enhanced the suppressive capacity of Treg cells.

Conclusions:

Integrin activation is critical for maintaining Treg cell function and peripheral tolerance.
Dysregulation of integrin activation in Treg cells results in severe autoimmunity.
Modulating integrin activation on Treg cells represents a potential therapeutic strategy for autoimmune diseases.