Human Gene Set: WILLERT_WNT_SIGNALING


Standard name WILLERT_WNT_SIGNALING
Systematic name M1805
Brief description Genes up-regulated in NCCIT cell line (embryonic teratocarcinoma) after stimulation with WNT3A [GeneID=89780].
Full description or abstract BACKGROUND: Wnt signaling is implicated in many developmental decisions, including stem cell control, as well as in cancer. There are relatively few target genes known of the Wnt pathway. RESULTS: We have identified target genes of Wnt signaling using microarray technology and human embryonic carcinoma cells stimulated with active Wnt protein. The ~50 genes upregulated early after Wnt addition include the previously known Wnt targets Cyclin D1, MYC, ID2 and betaTRCP. The newly identified targets, which include MSX1, MSX2, Nucleophosmin, Follistatin, TLE/Groucho, Ubc4/5E2, CBP/P300, Frizzled and REST/NRSF, have important implications for understanding the roles of Wnts in development and cancer. The protein synthesis inhibitor cycloheximide blocks induction by Wnt, consistent with a requirement for newly synthesized beta-catenin protein prior to target gene activation. The promoters of nearly all the target genes we identified have putative TCF binding sites, and we show that the TCF binding site is required for induction of Follistatin. Several of the target genes have a cooperative response to a combination of Wnt and BMP. CONCLUSIONS: Wnt signaling activates genes that promote stem cell fate and inhibit cellular differentiation and regulates a remarkable number of genes involved in its own signaling system.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 12095419   Authors: Willert J,Epping M,Pollack JR,Brown PO,Nusse R
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Source species Homo sapiens
Contributed by Yujin Hoshida (Broad Institute)
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identifier namespace		 HUMAN_GENE_SYMBOL
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Version history 3.0: Renamed from WILLERT_WNT_NCCIT_ALL_UP

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