Journal
TOXICOLOGY
Volume 217, Issue 2-3, Pages 206-212Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.tox.2005.09.019
Keywords
Hep G2 cell apoptosis; caspase; interferon; tumor necrosis factors; apigenin
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Flavonoids are one of the biologically active plant food constituents, possessing potential chemopreventive properties against a wide variety of chronic diseases. Apigenin, a common dietary flavonoid abundantly present in fruits and vegetables is believed to possess preventive and therapeutic potential against various cancers. In the present study. we have evaluated regulation of apoptotic cell death by apigenin (25 and 50 mu M) in human hepatoblastoma derived cell line Hep G2. Apigenin-induced programme cell death in terms of TNF-alpha, IFN-gamma release and induction of caspases activity. TNF-alpha and IFN-gamma levels in apigenin-pretreated groups; were significantly and dose dependently elevated as compared to the control values (28-39% and 66-85%). (208-336% and 579-1088%), respectively. Treatment of apigenin significantly induced caspase-3, -7, -10 and caspase-9 activity (160-209% and 203-270%) in a dose-dependent manner. The effects on caspases, TNF-alpha, and IFN-gamma processes mediate the plausible mechanism of apoptosis induction of apigenin. (c) 2005 Elsevier Ireland Ltd. All rights reserved.
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