Journal
JOURNAL OF SURGICAL ONCOLOGY
Volume 104, Issue 3, Pages 260-264Publisher
WILEY-BLACKWELL
DOI: 10.1002/jso.21936
Keywords
honokiol; melanoma; cancer; apoptosis; mitochondria; caspase
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Background: Melanoma continues to be a therapeutic challenge for the medical community owing to the scarcity of effective agents available to treat the disease. Honokiol, a traditional Chinese herb, has been proven to have anti-cancer effects in various cell types, therefore we hypothesized it may have similar cytotoxic capabilities against melanoma cells in vitro. Methods: Two cell lines, SK-MEL2 and MeWo, were grown in culture and exposed to increasing doses of Honokiol. Cell proliferation, cytochrome c release into the cytosol, intra-cellular caspase activity, and mitochondrial depolarization were then evaluated after treatment with honokiol. Results: Melanoma cells in culture underwent cell death, had increased cytosolic cytochrome c, showed greater caspase activity, and demonstrated increased mitochondrial depolarization after treatment when compared to controls. Conclusions: It appears that honokiol is an effective inhibitor of cultured human melanoma cells. J. Surg. Oncol. 2011;104:260-264. (C) 2011 Wiley-Liss, Inc.
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