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Anticancer Res. 2012 Jul;32(7):2727-34.

Anticancer effects of eleven triterpenoids derived from Antrodia camphorata.

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Schools of Dentistry, Chung Shan Medical University, 110, Section 1, Chien-Kuo North Road, Taichung, Taiwan 40201, ROC.


Eleven derivatives from Antrodia camphorata were isolated in order to evaluate their selective cytotoxicity toward 14 types of human cancer cell and two non-transformed cell types. Among these triterpenoids, methyl antcinate A (MAA) exhibited the most potent spectrum of anticancer effects in KB cells, four different oral cancer cell lines (TSCCa, GNM, OC-2, and OEC-M1), Panc-1, BT474, PC-3, OVCAR-3, HeLa, and U2OS cells with high selectivity indices (CC(50)/IC(50)). The expression of B-cell lymphoma 2 (Bcl-2), Bcl-2-associated X protein (Bax), and poly(ADP-ribose) polymerase (PARP) of PC-3 cells tested by western blotting suggested that MAA exerts cell death through the caspase-dependent cascade and the Bax-mediated mitochondrial apoptotic pathway, not only on liver and oral cancer cells but on other types as well, including prostate cancer, in a dose-dependent manner. In addition to MAA, methyl antcinate B, dehydroeburicoic acid, and 15α-acetyl-dehydrosulfurenic acid also exhibited significant selective cytotoxic effects to respective cancer cells. Modifications of these triterpenoids may lead to the development of more potent anticancer drugs.

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