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Related Experiment Video

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In Vitro Resident Memory CD8 T Cell Differentiation Using Epithelial Organoid-T Cell Co-culture System

In Vitro Resident Memory CD8 T Cell Differentiation Using Epithelial Organoid-T Cell Co-culture System

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Local immunity by tissue-resident CD8(+) memory T cells.

Thomas Gebhardt¹, Laura K Mackay

¹Department of Microbiology and Immunology, The University of Melbourne Melbourne, VIC, Australia.

Frontiers in Immunology

|November 20, 2012

Summary

Tissue-resident memory T cells (T(RM)) offer lasting protection in barrier tissues like skin and mucosa. These specialized CD103(+) T cells persist locally, compensating for waning circulating immune cells and enhancing tissue immunity.

Keywords:

T cell memory periphery protection virus infection

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Area of Science:

Immunology
Cell Biology
Infectious Disease

Background:

CD8(+) cytotoxic T cells generate long-lived memory cells after microbial infection, providing systemic protection.
Immune surveillance in barrier tissues (skin, mucosa) by circulating T cells diminishes over time.
A subset of CD103(+) memory T cells can reside long-term in peripheral tissues.

Purpose of the Study:

To review the generation and persistence of tissue-resident memory T cells (T(RM)).
To discuss the role of T(RM) cells in epithelial and neuronal tissues.
To explore T(RM) cell contributions to local infection control and immune responses in mice and humans.

Main Methods:

Review of existing scientific literature on T(RM) cell biology.
Analysis of studies investigating T(RM) cell generation and persistence.
Synthesis of data on T(RM) cell function in various tissues.

Main Results:

Tissue-resident memory T cells (T(RM)) establish long-term immune surveillance in peripheral tissues.
CD103(+) T(RM) cells compensate for the decline of circulating memory T cells in barrier tissues.
T(RM) cells are crucial for localized control of infections and immune responses.

Conclusions:

Tissue-resident memory T cells (T(RM)) represent a critical component of localized immunity.
Understanding T(RM) cell dynamics is key to improving protection against infections in barrier tissues.
T(RM) cells play significant roles in both murine and human immune systems.