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    Cancer Lett. 2007 Aug 8;253(1):89-96. Epub 2007 Feb 21.

    Induction of mitochondria-dependent apoptosis through the inhibition of mevalonate pathway in human breast cancer cells by YM529, a new third generation bisphosphonate.

    Source

    Department of Endocrine and Breast Surgery, Kyoto Prefectural University of Medicine, Kawaramachi, Hirokoji, Kamikyo-ku, Kyoto 602-0841, Japan.

    Abstract

    YM529, a new third generation bisphosphonate, induced apoptosis of a human breast cancer cell line, MX-1. Cytotoxic activity of YM529 was more potent than that of incadronate. YM529 activated caspase-9, but not caspase-8, and induced the release of cytochrome c into cytosol. YM529 increased Bax expression and decreased Bcl-2 expression, while it did not induce caspase-8-dependent Bid truncation. Farnesyl pyrophosphate prevented YM529-mediated cytotoxicity. These results suggest that YM529 is a potent therapeutic agent for human breast cancers, activating the mitochondria-dependent apoptotic pathway through the inhibition of protein farnesylation.

    PMID:
    17316980
    [PubMed - indexed for MEDLINE]

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