Systematic name M5105
Brief description Genes up-regulated in comparison of TCF7 [GeneID=6932] deficient early thymic progenitors versus the TCF7 [GeneID=6932] sufficient ones.
Full description or abstract Although transcriptional programs associated with T-cell specification and commitment have been described, the functional hierarchy and the roles of key regulators in structuring/ orchestrating these programs remain unclear. Activation of Notch signaling in uncommitted precursors by the thymic stroma initiates the T-cell differentiation program. One regulator first induced in these precursors is the DNA binding protein Tcf-1, a T-cell specific mediator of Wnt signaling. Yet the specific contribution of Tcf-1 to early T-cell development and the signals inducing it in these cells remain unclear. Here we assign functional significance to Tcf-1 as a gatekeeper of T-cell fate. We show that Tcf-1 is directly activated by Notch signals. Tcf-1 is required at the earliest phase of Tcell determination for progression beyond the early thymic progenitor (ETP) stage. The global expression profile of Tcf-1 deficient progenitors indicates that basic processes of DNA metabolism are downregulated in its absence and the blocked T-cell progenitors become abortive and die by apoptosis. Our data thus add an important functional relationship to the roadmap of T-cell development. We used microarrays to detail the global programme of gene expression of mouse ETP thymocyte after Ikaros inactivation with dominant negative of Ik at different stage.
Collection C7: Immunologic Signature
      IMMUNESIGDB: ImmuneSigDB
Source publication Pubmed 22109558   Authors: Germar K,Dose M,Konstantinou T,Zhang J,Wang H,Lobry C,Arnett KL,Blacklow SC,Aifantis I,Aster JC,Gounari F
Exact source GSE33513_2166_200_UP
Related gene sets (show 1 additional gene sets from the source publication)

(show 143 gene sets from the same authors)
External links
Filtered by similarity ?
Source species Mus musculus
Contributed by Jernej Godec (Dana-Farber Cancer Institute)
Source platform or
identifier namespace
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 ? NG-CHM interactive heatmaps
(Please note that clustering takes a few seconds)
GTEx compendium
Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)

Legacy heatmaps (PNG)
GTEx compendium
Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)
Advanced query Further investigate these 199 genes
Gene families ? Categorize these 199 genes by gene family
Show members (show 200 source identifiers mapped to 199 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.