Human Gene Set: GSE11924_TFH_VS_TH2_CD4_TCELL_DN


Standard name GSE11924_TFH_VS_TH2_CD4_TCELL_DN
Systematic name M3154
Brief description Genes down-regulated in comparison of T follicular helper (Tfh) cells versus Th2 cells.
Full description or abstract After activation, CD4+ helper T (Th) cells differentiate into distinct effector subsets. Although chemokine (C-X-C motif) receptor 5-expressing T follicular helper (Tfh) cells are important in humoral immunity, their developmental regulation is unclear. Here we show that Tfh cells had a distinct gene expression profile and developed in vivo independently of the Th1 or Th2 cell lineages. Tfh cell generation was regulated by ICOS ligand (ICOSL) expressed on B cells and was dependent on interleukin-21 (IL-21), IL-6, and signal transducer and activator of transcription 3. However, unlike Th17 cells, differentiation of Tfh cells did not require transforming growth factor b (TGF-b) or Th17-specific orphan nuclear receptors RORa and RORg in vivo. Finally, naive T cells activated in vitro in the presence of IL-21 but not TGF-b signaling preferentially acquired Tfh gene expression and promoted germinal-center reactions in vivo. This study thus demonstrates that Tfh is a distinct Th cell lineage.
Collection C7: Immunologic Signature
      IMMUNESIGDB: ImmuneSigDB
Source publication Pubmed 18599325   Authors: Nurieva RI,Chung Y,Hwang D,Yang XO,Kang HS,Ma L,Wang YH,Watowich SS,Jetten AM,Tian Q,Dong C
Exact source GSE11924_1089_200_DN
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Source species Mus musculus
Contributed by Jernej Godec (Dana-Farber Cancer Institute)
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identifier namespace		 HUMAN_GENE_SYMBOL
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Version history 7.3: Moved to ImmuneSigDB sub-collection.

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