Anti-androgens are regarded as potential therapeutic agents for the treatment of prostate cancer. We determined that an epimedium herb (EH) extract exhibited anti-androgenic activity in a luciferase assay using androgen receptor-positive prostate cancer LNCaP cells. Nine EH-derived flavonoids were examined. The results identified icarisid II as a very potent anti-androgenic EH-derived flavonoid. A quantitative RT-PCR analysis confirmed that the flavonol suppressed the expression of the androgen-responsive KLK3 gene.
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Miura et al. (2015) studied this question.
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