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- W4310558303 abstract "Gastric cancer (GC) is the fourth leading cause of cancer-related death worldwide. Glutathione peroxidase 4 (GPX4) is a glutathione-dependent antioxidant enzyme known to regulate ferroptosis, which is a non-apoptotic form of cell death accompanied by iron-dependent accumulation of reactive oxygen species (ROS). This study evaluated the expression and function of GPX4 in GC.The expression of GPX4 was examined in five human GC cell lines (KATO-III, MKN-1, MKN-28, MKN-45, and MKN-74) using real-time quantitative PCR and western blotting. The role of GPX4 in GC was examined using small interference RNA and cell proliferation and ROS assays. Finally, we analyzed GPX4 expression in tumor tissues from 106 patients who underwent GC surgery using immunohistochemistry and evaluated the relationship between GPX4 levels and clinical outcomes of GC.GPX4 was expressed in all GC cell lines at various levels. GPX4 silencing and inhibition significantly reduced cell proliferation and increased ROS generation. Furthermore, the mRNA levels of prostaglandin-endoperoxide synthase 2, a known biomarker of ferroptosis, were increased after GPX4 silencing. GPX4 expression was found to be an independent prognostic factor for overall and disease-specific survival in GC patients.GPX4 can regulate cancer cell death via ferroptosis in GC cell lines and represents a significant risk factor for survival in patients with GC." @default.
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- W4310558303 date "2022-12-01" @default.
- W4310558303 modified "2023-09-30" @default.
- W4310558303 title "GPX4 Regulates Tumor Cell Proliferation<i>via</i>Suppressing Ferroptosis and Exhibits Prognostic Significance in Gastric Cancer" @default.
- W4310558303 doi "https://doi.org/10.21873/anticanres.16079" @default.
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