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Rad, Roland; Cadiñanos, Juan; Rad, Lena; Varela, Ignacio; Strong, Alexander; Kriegl, Lydia; Constantino-Casas, Fernando; Eser, Stefan; Hieber, Maren; Seidler, Barbara; Price, Stacey; Fraga, Mario F; Calvanese, Vincenzo; Hoffman, Gary; Ponstingl, Hannes; Schneider, Günter; Yusa, Kosuke; Grove, Carolyn; Schmid, Roland M; Wang, Wei; Vassiliou, George; Kirchner, Thomas; McDermott, Ultan; Liu, Pentao; Saur, Dieter; Bradley, Allan
Cancer cell, 2013-Jul-08, 20130708, Letnik: 24, Številka: 1Journal Article
We show that BRAF(V600E) initiates an alternative pathway to colorectal cancer (CRC), which progresses through a hyperplasia/adenoma/carcinoma sequence. This pathway underlies significant subsets of CRCs with distinctive pathomorphologic/genetic/epidemiologic/clinical characteristics. Genetic and functional analyses in mice revealed a series of stage-specific molecular alterations driving different phases of tumor evolution and uncovered mechanisms underlying this stage specificity. We further demonstrate dose-dependent effects of oncogenic signaling, with physiologic Braf(V600E) expression being sufficient for hyperplasia induction, but later stage intensified Mapk-signaling driving both tumor progression and activation of intrinsic tumor suppression. Such phenomena explain, for example, the inability of p53 to restrain tumor initiation as well as its importance in invasiveness control, and the late stage specificity of its somatic mutation. Finally, systematic drug screening revealed sensitivity of this CRC subtype to targeted therapeutics, including Mek or combinatorial PI3K/Braf inhibition.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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