Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
2052407 | FEBS Letters | 2005 | 6 Pages |
Abstract
Hyperproliferation of the premalignant epithelium is critical for colonic carcinogenesis; however the mechanisms remain largely unexplored. We report herein that prior to occurrence of neoplastic lesions in the azoxymethane-rat model of colon carcinogenesis; the tumor suppressor gene C-terminal Src kinase (Csk) was down-regulated with a concomitant increase in Src activity. Furthermore, pharmacological or genetic (RNA interference) inhibition of Csk resulted in increased proliferation in colon cancer cell lines through the mitogen-activated protein kinase dependent pathway. Thus, we demonstrate, for the first time, that Csk suppression is an important early event in colorectal cancer pathogenesis.
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Authors
Dhananjay P. Kunte, Ramesh K. Wali, Jennifer L. Koetsier, John Hart, Maria N. Kostjukova, Anna Y. Kilimnik, Ilia G. Pyatkin, Svetlana R. Strelnikova, Hemant K. Roy,