?-Catenin-driven cancers require a YAP1 transcriptional complex for survival and tumorigenesis.

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?-Catenin-driven cancers require a YAP1 transcriptional complex for survival and tumorigenesis.

Cell. 2012 Dec 21;151(7):1457-73

Authors: Rosenbluh J, Nijhawan D, Cox AG, Li X, Neal JT, Schafer EJ, Zack TI, Wang X, Tsherniak A, Schinzel AC, Shao DD, Schumacher SE, Weir BA, Vazquez F, Cowley GS, Root DE, Mesirov JP, Beroukhim R, Kuo CJ, Goessling W, Hahn WC

Abstract
Wnt/?-catenin signaling plays a key role in the pathogenesis of colon and other cancers; emerging evidence indicates that oncogenic ?-catenin regulates several biological processes essential for cancer initiation and progression. To decipher the role of ?-catenin in transformation, we classified ?-catenin activity in 85 cancer cell lines in which we performed genome-scale loss-of-function screens and found that ?-catenin active cancers are dependent on a signaling pathway involving the transcriptional regulator YAP1. Specifically, we found that YAP1 and the transcription factor TBX5 form�a complex with ?-catenin. Phosphorylation of YAP1 by the tyrosine kinase YES1 leads to localization of this complex to the promoters of antiapoptotic genes, including BCL2L1 and BIRC5. A small-molecule inhibitor of YES1 impeded the proliferation of ?-catenin-dependent cancers in both cell lines and animal models. These observations define a ?-catenin-YAP1-TBX5 complex essential to the transformation and survival of ?-catenin-driven cancers.

PMID: 23245941 [PubMed - indexed for MEDLINE]

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