Systematic name M9076
Brief description Genes up-regulated in memory CD8 T cells: ITGAE- [GeneID=3682] from spleen versus ITGAE+ [GeneID=3682] from brain.
Full description or abstract Tissue resident memory (Trm) represent a newly described memory T cell population. We have previously characterized a population of Trm that persists within the brain following acute virus infection. Although capable of providing marked protection against a subsequent local challenge, brain Trm do not undergo recall expansion following dissociation from the tissue. Furthermore, these Trm do not depend on the same survival factors as the circulating memory T cell pool as assessed either in vivo or in vitro. To gain greater insight into this population of cells we compared the gene-expression profiles of Trm isolated from the brain to circulating memory T cells isolated from the spleen following an acute virus infection. Trm displayed altered expression of genes involved in chemotaxis, expressed a distinct set of transcription factors and overexpressed several inhibitory receptors. Cumulatively, these data indicates that Trm are a distinct memory T cell population disconnected from the circulating memory T cell pool and displaying a unique molecular signature which likely results in optimal survival and function within their local environment.
Collection C7: Immunologic Signature
      IMMUNESIGDB: ImmuneSigDB
Source publication Pubmed 22922816   Authors: Wakim LM,Woodward-Davis A,Liu R,Hu Y,Villadangos J,Smyth G,Bevan MJ
Exact source GSE39152_2716_200_UP
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Source species Mus musculus
Contributed by Jernej Godec (Dana-Farber Cancer Institute)
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Version history 7.3: Moved to ImmuneSigDB sub-collection.

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