Human Tissue-Resident Memory T Cells Are Defined by Core Transcriptional and Functional Signatures in Lymphoid and Mucosal Sites.
Cell Rep
; 20(12): 2921-2934, 2017 Sep 19.
Article
em En
| MEDLINE
| ID: mdl-28930685
ABSTRACT
Tissue-resident memory T cells (TRMs) in mice mediate optimal protective immunity to infection and vaccination, while in humans, the existence and properties of TRMs remain unclear. Here, we use a unique human tissue resource to determine whether human tissue memory T cells constitute a distinct subset in diverse mucosal and lymphoid tissues. We identify a core transcriptional profile within the CD69+ subset of memory CD4+ and CD8+ T cells in lung and spleen that is distinct from that of CD69- TEM cells in tissues and circulation and defines human TRMs based on homology to the transcriptional profile of mouse CD8+ TRMs. Human TRMs in diverse sites exhibit increased expression of adhesion and inhibitory molecules, produce both pro-inflammatory and regulatory cytokines, and have reduced turnover compared with circulating TEM, suggesting unique adaptations for in situ immunity. Together, our results provide a unifying signature for human TRM and a blueprint for designing tissue-targeted immunotherapies.
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MEDLINE
Assunto principal:
Transcrição Gênica
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Linfócitos T
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Perfilação da Expressão Gênica
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Memória Imunológica
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Tecido Linfoide
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Mucosa
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article