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  • Title: e2f1 Gene is a new member of Wnt/beta-catenin/Tcf-regulated genes.
    Author: Abramova MV, Zatulovskiy EA, Svetlikova SB, Kukushkin AN, Pospelov VA.
    Journal: Biochem Biophys Res Commun; 2010 Jan 01; 391(1):142-6. PubMed ID: 19900401.
    Abstract:
    HDAC inhibitors induce cell cycle arrest of E1A+Ras-transformed cells accompanied by e2f1 gene down-regulation and activation of Wnt pathway. Here we show that e2f1 expression is regulated through the Wnt/Tcf-pathway: e2f1 promoter activity is inhibited by sodium butyrate (NaB) and by overexpression of beta-catenin/Tcf. The e2f1 promoter was found to contain two putative Tcf-binding elements: the proximal one competes well with canonical Tcf element in DNA-binding assay. Being inserted into luciferase reporter vector, the identified element provides positive transcriptional regulation in response to beta-catenin/Tcf co-transfection and NaB treatment. Thus we have firstly demonstrated that e2f1 belongs to genes regulated through Wnt/beta-catenin/Tcf pathway.
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