Tissue resident memory T cells and viral immunity

Pamela C. Rosato, Lalit K. Beura, David Masopust

Research output: Contribution to journalReview articlepeer-review

49 Scopus citations

Abstract

Tissue resident memory T cells (TRM) constitute a recently identified T cell lineage that is responsible for frontline defense against viral infections. In contrast to central and effector memory T cells, which constitutively recirculate between tissues and blood, TRM reside permanently within tissues. As the main surveyors of non-lymphoid tissues, TRM are positioned to rapidly respond upon reinfection at barrier sites. During a viral reinfection, TRM trigger the local tissue environment to activate and recruit immune cells and establish an antiviral state. Consistent with this function, there is empirical evidence that TRM accelerate control in the event of reinfection or possible reactivation of latent infections in solid organs and barrier tissues. Here we review recent literature highlighting the protective functions of TRM in multiple viral challenge models and contextualize the implications of these findings for vaccine development.

Original languageEnglish (US)
Pages (from-to)44-50
Number of pages7
JournalCurrent Opinion in Virology
Volume22
DOIs
StatePublished - Feb 1 2017

Bibliographical note

Funding Information:
This work was supported by National Institutes of Health grants 1R01AI111671, R01AI084913 (to D.M.). P.R. is a Cancer Research Institute Irvington Fellow supported by the Cancer Research Institute.

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