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Research Article: 6-gingerol promotes apoptosis of ovarian cancer cells through miR-506/Gli3 signaling pathway activation

Date Published: 2025-09-12

Abstract:
Ginger rhizomes have shown potential for promoting human health, including the prevention and treatment of cancer. Here, we investigated the anticancer activities of 6-gingerol and explored its mechanisms of action in ovarian cancer cells. SKOV3 ovarian cancer cells were treated with different concentrations of 6-gingerol. Clonogenic assays, Flow cytometry, and Western blotting were used to evaluate cell survival and apoptosis. RT-qPCR and transfection experiments were performed to assess the role of miR-506, and bioinformatics tools were used to identify Gli3 as a target gene. In vitro , ovarian cancer cells underwent apoptosis following 6-gingerol treatment. 6-Gingerol suppressed Gli3 expression without affecting Bax, Bcl-2, or Bcl-xL levels. Low miR-506 expression was observed in ovarian cancer tissues, whereas 6-gingerol significantly promoted its expression. miR-506 directly suppressed Gli3 expression and induced apoptosis in SKOV3 cells. Our results indicate that gingerol promoted the upregulation of miR-506, leading to the induction of apoptosis in ovarian cancer cells. This study supports the potential of 6-gingerol-based therapy for ovarian malignancies.

Introduction:
Ovarian cancer is the seventh most prevalent cancer in women and has the highest mortality rate among gynecological cancers ( 1 ). The five-year survival rate in patients with ovarian cancer is approximately 47% ( 2 , 3 ). Due to the lack of specific and sensitive early detection methods, ovarian cancer is often diagnosed at an advanced stage when metastasis has already occurred, limiting the effectiveness of surgical treatments and chemotherapy ( 4 – 7 ). Although poly (ADP-ribose) polymerase inhibitors show…

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