期刊
CANCER LETTERS
卷 258, 期 1, 页码 144-153出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.canlet.2007.08.020
关键词
PI3-k; PKB/Akt; apoptosis; colon cancer
类别
The aim of this investigation was to evaluate the chemopreventative/antiproliferative potential of a grape seed proanthocyanidin extract (GSPE) against colon cancer cells (CaCo2 cells) and to investigate its mechanism of action. GSPE (10-100 mu g/ml) significantly inhibited cell viability and increased apoptosis in CaCo2 cells, but did not alter viability in the normal colon cell line (NCM460). The increased apoptosis observed in GSPE-treated CaCo2 cells correlated with an attenuation of PI3-kinase (p 110 and p85 subunits) and decreased PKB Ser 473 phosphorylation. GSPE might thus exert its beneficial effects by means of increased apoptosis and suppression of the important PI3-kinase survival-related pathway. (c) 2007 Elsevier Ireland Ltd. All rights reserved.
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