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Propofol induces apoptosis of epithelial ovarian cancer cells by upregulation of microRNA let-7i expression.

OBJECTIVE: Propofol is one of the extensively and commonly used intravenous anaesthetic agents. The aims of the current study were to evaluate effects of propofol on the behavior of human epithelial ovarian cancer (EOC) cells and role of miR-let-7i in these effects.

MATERIALS AND METHODS: The effects of propofol on cell proliferation and apoptosis were detected by MTT assays and flow cytometry. Real-time polymerase chain reaction (PCR) was used to assess miR-let-7i expression in human EOC cells OVCAR-3 with or without propofol treatment. Finally, the authors evaluated the effect ofmiR-let-7i on propofol-induced anti-tumor activity using anti-miR-let-7i.

RESULTS: Propofol inhibited the proliferation of OVCAR-3 cells in a dose- and time-dependent manner. After exposure to propofol for 24 hours, OVCAR-3 cells showed increased apoptosis and increased expression of miR-let-7i. Finally, anti-miR-let-7i reversed the effect of propofol on cell proliferation and apoptosis.

CONCLUSIONS: Propofol can effectively inhibit proliferation and induce apoptosis of EOC cells and modulation of miR-let-7i possibly contributes to the anti-tumor action of propofol.

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