Human Gene Set: GSE24026_PD1_LIGATION_VS_CTRL_IN_ACT_TCELL_LINE_DN


Standard name GSE24026_PD1_LIGATION_VS_CTRL_IN_ACT_TCELL_LINE_DN
Systematic name M4538
Brief description Genes down-regulated in comparison of Jurkat T cells stimulated in the presence of PD-1 versus controls.
Full description or abstract CD8+ T cells in chronic viral infections like HIV develop functional defects such as loss of IL-2 secretion and decreased proliferative potential that are collectively termed exhaustion1. Exhausted T cells express increased levels of multiple inhibitory receptors, such as Programmed Death 1 (PD-1). PD-1 inhibition contributes to impaired virus-specific T cell function in chronic infection because antibody-mediated blockade of its ligand, Programmed Death Ligand 1 (PD-L1) is sufficient to improve T cell function and reduce viral replication in animal models. Reversing PD-1 inhibition is therefore an attractive therapeutic target, but the cellular mechanisms by which PD-1 ligation results in T cell inhibition are not fully understood. PD-1 is thought to limit T cell activation by attenuating T cell receptor (TCR) signaling. It is not known whether PD-1 ligation also acts by upregulating genes in exhausted T cells that impair their function. Here, we analyzed gene-expression profiles from HIV-specific CD8+ T cells in patients with HIV and show that PD-1 coordinately upregulates a program of genes in exhausted CD8+ T cells from humans and mice. This program includes upregulation of basic leucine transcription factor, ATF-like (BATF), a transcription factor in the AP-1 family. Enforced expression of BATF was sufficient to impair T cell proliferation and cytokine secretion, while BATF knockdown reduced PD-1 inhibition. Silencing BATF in CD4+ and CD8+ T cells from chronic viremic patients rescued HIV-specific T cell function. Thus inhibitory receptors can cause T cell exhaustion by upregulating genes ? such as BATF ? that inhibit T cell function.
Collection C7: Immunologic Signature
      IMMUNESIGDB: ImmuneSigDB
Source publication Pubmed 20890291   Authors: Quigley M,Pereyra F,Nilsson B,Porichis F,Fonseca C,Eichbaum Q,Julg B,Jesneck JL,Brosnahan K,Imam S,Russell K,Toth I,Piechocka-Trocha A,Dolfi D,Angelosanto J,Crawford A,Shin H,Kwon DS,Zupkosky J,Francisco L,Freeman GJ,Wherry EJ,Kaufmann DE,Walker BD,Ebert B,Haining WN
Exact source GSE24026_1553_200_DN
Related gene sets (show 3 additional gene sets from the source publication)

(show 233 gene sets from the same authors)
External links  
Filtered by similarity ?
Organism Homo sapiens
Contributed by Jernej Godec (Dana-Farber Cancer Institute)
Source platform HUMAN_GENE_SYMBOL
Dataset references (show 1 datasets)
Download gene set format: grp | gmt | xml | json | TSV metadata
Compute overlaps ? (show collections to investigate for overlap with this gene set)
Compendia expression profiles ? GTEx compendium
Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)
Advanced query Further investigate these 200 genes
Gene families ? Categorize these 200 genes by gene family
Show members (show 200 members mapped to 200 genes)
Version history 7.3: Moved to ImmuneSigDB sub-collection.

See MSigDB license terms here. Please note that certain gene sets have special access terms.