ArticleIranian biomedical journal2025
A Novel Approach to Overcome Cisplatin Resistance in Ovarian Cancer: Revealing the Synergistic Potential of Quercetin-Loaded Solid Lipid Nanoparticles
Article in Iranian biomedical journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Ovarian cancer (OC) remains the leading cause of mortality among gynecological cancers, mainly because of resistance to platinum-based chemotherapy, particularly cisplatin. This study investigated the potential of quercetin (QU)-loaded solid lipid nanoparticles (SLNs) to address cisplatin resistance in OC cells. Methods: The efficacy of QU-SLN was assessed in vitro on the cisplatin-resistant SK-OV-3 and cisplatin-sensitive A2780s human OC cell lines. Various assays, including cytotoxicity, cell viability, clonogenicity, flow cytometry, quantitative RT-PCR, and wound healing assays, evaluated the combined effects of QU and QU-SLN with cisplatin on cell viability, apoptosis, gene expression levels related to cisplatin resistance, and cell migration. Results: Combining QU-SLN with cisplatin resulted in significantly reduced cell viability and colony formation, accompanied by increased apoptotic rates compared to each treatment alone. Moreover, there was a notable reduction in the expression level of genes associated with cisplatin resistance, particularly ABCG2, MT-2A, GST-pi, and XIAP, in the combined treatment. Wound healing assays indicated that the QU-SLN and cisplatin combination severely impaired OC cell motility compared to cisplatin monotherapy. Conclusion: QU-SLN and cisplatin combination enhances the therapeutic response in cisplatin-resistant OC cells. By reducing cell proliferation, promoting apoptosis, and downregulating drug resistance genes, QU-SLN might present a promising strategy to improve treatment outcomes for OC patients resistant to cisplatin.
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