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Chrysin attenuates progression of ovarian cancer cells by regulating signaling cascades and mitochondrial dysfunction

Chrysin is mainly found in passion flowers, honey, and propolis acts as a potential therapeutic and preventive agent to inhibit proliferation and invasion of various human cancer cells. Although chrysin has anti‐carcinogenic effects in several cancers, little is known about its functional roles in ovarian cancer which shows poor prognosis and chemoresistance to traditional therapeutic agents. In the present study, we investigated functional roles of chrysin in progression of ovarian cancer cells using ES2 and OV90 (clear cell and serous carcinoma, respectively) cell lines. Results of the current study demonstrated that chrysin inhibited ovarian cancer cell proliferation and induced cell death by increasing reactive oxygen species (ROS) production and cytoplasmic Ca2+ levels as well as inducing loss of mitochondrial membrane potential (MMP). Moreover, chrysin activated mitogen‐activated protein kinase (MAPK) and phosphoinositide 3‐kinase (PI3K)/AKT pathways in ES2 and OV90 cells in concentration‐response experiments. Collectively, our results led us to propose that chrysin‐induced apoptotic events are mediated by the activation of PI3K and MAPK pathways in human ovarian cancer cells.