Gene Set: GSE7596_AKT_TRANSD_VS_CTRL_CD4_TCONV_WITH_TGFB_UP

Standard name GSE7596_AKT_TRANSD_VS_CTRL_CD4_TCONV_WITH_TGFB_UP
Systematic name M339
Brief description Genes up-regulated in T conv in response to TGF-beta: expressing constantly active form of AKT1 [GeneID=207] versus control.
Full description or abstract The CD4+Foxp3+ regulatory T cells play an essential role in maintaining tolerance via their suppressive function on conventional T cells. The intracellular signaling pathways that regulate Foxp3 expression are largely unknown. In this study we describe a novel inhibitory role for AKT in regulating de novo induction of Foxp3 both in vivo and in vitro. A constitutively active allele of AKT significantly diminished TGF- induced Foxp3 induction via a rapamycin-sensitive pathway, establishing a role for the AKT-mTOR axis in Treg cells. Moreover, the observed impairment in Foxp3 induction was paralleled by a selective downmodulation of the imparted Treg transcriptional signature highlighting the importance of the balance of intracellular signals in Treg differentiation . Our results provide a basis for further elucidation of molecular mechanisms that regulate Foxp3 induction and identify AKT as an important negative regulator of this process.
Collection C7: immunologic signature gene sets
      IMMUNESIGDB: ImmuneSigDB gene sets
Source publication Pubmed 18283119   Authors: Haxhinasto S,Mathis D,Benoist C
Exact source GSE7596_3419_200_UP
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Organism Mus musculus
Contributed by Jernej Godec (Dana-Farber Cancer Institute)
Source platform HUMAN_GENE_SYMBOL
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Version history 7.3: Moved to ImmuneSigDB sub-collection.

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