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Exhaustion-associated regulatory regions in CD8+ tumor-infiltrating T cells

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Mus musculus

PROVIDER: GSE93014 | GEO | 2017/02/28

SECONDARY ACCESSION(S): PRJNA359370

REPOSITORIES: GEO

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Exhaustion-associated regulatory regions in CD8<sup>+</sup> tumor-infiltrating T cells.

Project description: Not available

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Exhaustion-associated regulatory regions in CD8+ tumor-infiltrating T cells

Project description:Exhaustion-associated regulatory regions in CD8+ tumor-infiltrating T cells

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Exhaustion-associated regulatory regions in CD8+ tumor-infiltrating T cells (OT-I vs P14 RNA-seq)

Project description:T cell exhaustion is a progressive loss of effector function and memory potential due to persistent antigen exposure, which occurs in chronic viral infections and cancer. Here we investigate the relation between gene expression and chromatin accessibility in CD8+ tumor-infiltrating lymphocytes (TIL) that recognize a model tumor antigen and have features of both activation and functional exhaustion. By filtering out accessible regions observed in bystander, non-exhausted, TIL and in acutely restimulated CD8+ T cells, we define a pattern of chromatin accessibility specific for T cell exhaustion, characterized by enrichment for consensus binding motifs for Nr4a and NFAT transcription factors. Anti-PD-L1 treatment of tumor-bearing mice results in cessation of tumor growth and partial rescue of cytokine production by the dysfunctional TIL, with only limited changes in gene expression and chromatin accessibility. Our studies provide a valuable resource for the molecular understanding of T cell exhaustion in cancer and other inflammatory settings.

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tumor-infiltrating CD8+ T cells from tumor-bearing mice transferred Nrf2-deficient CD8+ T cells.

Project description:This SuperSeries is composed of the SubSeries listed below.

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Project description:This SuperSeries is composed of the SubSeries listed below.