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鞘氨醇 1-磷酸受体 5(S1PR5)调节组织驻留淋巴细胞在外周的滞留。

Sphingosine 1-phosphate receptor 5 (S1PR5) regulates the peripheral retention of tissue-resident lymphocytes.

机构信息

Department of Microbiology and Immunology, The University of Melbourne at The Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia.

Center for Immunology, University of Minnesota Medical School, Minneapolis, MN.

出版信息

J Exp Med. 2022 Jan 3;219(1). doi: 10.1084/jem.20210116. Epub 2021 Oct 22.


DOI:10.1084/jem.20210116
PMID:34677611
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8546662/
Abstract

Tissue-resident memory T (TRM) cells provide long-lasting immune protection. One of the key events controlling TRM cell development is the local retention of TRM cell precursors coupled to downregulation of molecules necessary for tissue exit. Sphingosine-1-phosphate receptor 5 (S1PR5) is a migratory receptor with an uncharted function in T cells. Here, we show that S1PR5 plays a critical role in T cell infiltration and emigration from peripheral organs, as well as being specifically downregulated in TRM cells. Consequentially, TRM cell development was selectively impaired upon ectopic expression of S1pr5, whereas loss of S1pr5 enhanced skin TRM cell formation by promoting peripheral T cell sequestration. Importantly, we found that T-bet and ZEB2 were required for S1pr5 induction and that local TGF-β signaling was necessary to promote coordinated Tbx21, Zeb2, and S1pr5 downregulation. Moreover, S1PR5-mediated control of tissue residency was conserved across innate and adaptive immune compartments. Together, these results identify the T-bet-ZEB2-S1PR5 axis as a previously unappreciated mechanism modulating the generation of tissue-resident lymphocytes.

摘要

组织驻留记忆 T(TRM)细胞提供持久的免疫保护。控制 TRM 细胞发育的关键事件之一是将 TRM 细胞前体局部保留与下调组织出口所需的分子相结合。鞘氨醇-1-磷酸受体 5(S1PR5)是一种迁移受体,在 T 细胞中具有未知的功能。在这里,我们表明 S1PR5 在 T 细胞从外周器官的浸润和迁移中起关键作用,并且在 TRM 细胞中特异性地下调。因此,在异位表达 S1pr5 时,TRM 细胞的发育被选择性地损害,而 S1pr5 的缺失通过促进外周 T 细胞隔离来增强皮肤 TRM 细胞的形成。重要的是,我们发现 T-bet 和 ZEB2 是 S1pr5 诱导所必需的,并且局部 TGF-β 信号对于促进协调的 Tbx21、Zeb2 和 S1pr5 下调是必要的。此外,S1PR5 介导的组织驻留控制在先天和适应性免疫区室中是保守的。总之,这些结果确定了 T-bet-ZEB2-S1PR5 轴作为调节组织驻留淋巴细胞生成的以前未被认识的机制。

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本文引用的文献

[1]
Discrete tissue microenvironments instruct diversity in resident memory T cell function and plasticity.

Nat Immunol. 2021-9

[2]
Tissue-resident memory CD8 T cells shape local and systemic secondary T cell responses.

Nat Immunol. 2020-7-13

[3]
Retrograde migration supplies resident memory T cells to lung-draining LN after influenza infection.

J Exp Med. 2020-8-3

[4]
Heterogenous Populations of Tissue-Resident CD8 T Cells Are Generated in Response to Infection and Malignancy.

Immunity. 2020-5-19

[5]
Early precursors and molecular determinants of tissue-resident memory CD8 T lymphocytes revealed by single-cell RNA sequencing.

Sci Immunol. 2020-5-15

[6]
Finding a Way Out: S1P Signaling and Immune Cell Migration.

Annu Rev Immunol. 2020-4-26

[7]
Organ-specific isoform selection of fatty acid-binding proteins in tissue-resident lymphocytes.

Sci Immunol. 2020-4-3

[8]
Efficient CRISPR/Cas9 Gene Editing in Uncultured Naive Mouse T Cells for In Vivo Studies.

J Immunol. 2020-3-9

[9]
Developmental plasticity allows outside-in immune responses by resident memory T cells.

Nat Immunol. 2020-2-17

[10]
Local heroes or villains: tissue-resident memory T cells in human health and disease.

Cell Mol Immunol. 2020-2

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