Journal
INTERNATIONAL JOURNAL OF GYNECOLOGICAL CANCER
Volume 15, Issue 5, Pages 872-877Publisher
BLACKWELL PUBLISHING
DOI: 10.1111/j.1525-1438.2005.00251.x
Keywords
apoptosis; As2O3; cell cycle; Fas; ovarian cancer
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Arsenic trioxide (As2O3), has been used for centuries in traditional Chinese medicine; it has considerable efficacy in the treatment of relapsed acute promyelocytic leukemia, inducing partial differentiation and promoting apoptosis of malignant promyelocytes. Although a number of studies have demonstrated that As2O3 has potent activity against cell growth in a series of leukemia cell lines, little information is available regarding this compound's effect on cell growth in solid tumor cell lines. In this study, we investigated the effects of As2O3 in vitro on ovarian cancer cell lines sensitive (3AO) and resistant (3AO/CDDP) to cisplatin. The 3-(4,5-dimethy-thiazoyl-2-yl)-2,5-diphenyl-tetrazolium bromide assay was used to evaluate cytotoxicity. Flow cytometric analysis was used to determine the apoptosis, cell cycle distribution. We clearly demonstrated that As2O3 induced cell apoptosis and inhibition of cell growth in both the cell lines. Furthermore, we identified that As2O3-induced apoptosis involved Fas pathway. As2O3 is an active agent against ovarian cancer cells and could be effective in the clinical treatment of ovarian cancer.
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