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Keeping T cell memories in mind
Journal article   Peer reviewed

Keeping T cell memories in mind

Madison R Mix and John T Harty
Trends in immunology, Vol.43(12), pp.1018-1031
11/08/2022
DOI: 10.1016/j.it.2022.10.001
PMCID: PMC9691610
PMID: 36369103
url
https://www.ncbi.nlm.nih.gov/pmc/articles/9691610View
Open Access

Abstract

The mammalian central nervous system (CNS) contains a vibrant community of resident adaptive immune cells at homeostasis. Among these are memory CD8+ and CD4+ T cells, which reside in the CNS in the settings of health, aging, and neurological disease. These T cells commonly exhibit a tissue-resident memory (TRM) phenotype, suggesting that they are antigen-experienced and remain separate from the circulation. Despite these characterizations, T cell surveillance of the CNS has only recently been studied through the lens of TRM immunology. In this Review, we outline emerging concepts of CNS TRM generation, localization, maintenance, function, and specificity. In this way, we hope to highlight roles of CNS TRM in health and disease to inform future studies of adaptive neuroimmunity.

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