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Updated: Dec 22, 2025
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Isolation of Mouse Kidney-Resident CD8+ T cells for Flow Cytometry Analysis
Published on: June 27, 2020
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Resident Memory T Cells Escape 'Home Quarantine'
Marco Künzli1, Carolyn G King1
1Department of Biomedicine, University of Basel, University Hospital of Basel, CH-4031 Basel, Switzerland.
Trends in Immunology
|May 11, 2020
Summary
Resident memory T (Trm) cells are crucial for tissue defense. New research shows CD8+ Trm cells can generate circulating effector and memory cells while retaining their tissue-homing ability.
Area of Science:
- Immunology
- Cellular Biology
- Tissue Homeostasis
Background:
- Resident memory T (Trm) cells are essential for rapid immune responses at barrier tissues.
- Understanding Trm cell differentiation and tissue residency is critical for developing effective immunotherapies.
Purpose of the Study:
- To investigate the differentiation potential of CD8+ Trm cells.
- To determine if Trm cells can generate circulating effector and memory T cell populations.
- To elucidate the mechanisms governing Trm cell tissue re-homing.
Main Methods:
- Adoptive transfer experiments in mouse models.
- Flow cytometry and single-cell RNA sequencing.
- In vivo migration assays.
Main Results:
- CD8+ Trm cells were shown to differentiate into circulating effector and memory T cells.
- These Trm cell-derived circulating cells retained a predisposition to migrate back to their tissue of origin.
- Evidence suggests unique transcriptional programs govern Trm cell fate and tissue retention.
Conclusions:
- CD8+ Trm cells are a dynamic population capable of seeding circulating T cell pools.
- Trm cells possess intrinsic mechanisms for tissue-specific homing, contributing to sustained tissue immunity.
- These findings offer new insights into T cell memory and tissue-resident immunity.
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