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• W4375843902 endingPage "121753" @default.
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• W4375843902 abstract "Medroxyprogesterone acetate (MPA) is the most common fertility-sparing treatment in patients with early-stage endometrial cancer. If MPA treatment fails, hysterectomy is recommended. Thus, there is an urgent need for novel treatment approaches for MPA-resistant endometrial cancer patients who wish to preserve their fertility. Ferroptosis is a recently discovered type of regulated cell death caused by the excessive accumulation of reactive oxygen species (ROS), followed by aberrant lipid peroxidation. Recent studies have shown that inducing ferroptosis is a potential therapeutic strategy for cancer. However, the role of ferroptosis in endometrial cancer treatment remains to be discussed. We therefore investigated the effects of ferroptosis inducers on MPA-resistant endometrial cancer cells. The levels of solute carrier family 7 member 11 (SLC7A11) and glutathione peroxidase 4 (GPX4), the main mediators of ferroptosis, were examined. Cell viability was evaluated after treatment with the ferroptosis inducers sulfasalazine, erastin, or RSL3. The degree of intracellular oxidative stress after treatment with these drugs was evaluated by the glutathione level, ROS level, ferrous iron level, lipid peroxidation and changes in mitochondrial morphology. The effect of ferroptosis inducers in vivo was also examined. The expression of SLC7A11 and GPX4 in MPA-resistant ECC-1 cells decreased in comparison to parental ECC-1 cells. Sulfasalazine, erastin, and RSL3 significantly reduced cell viability and increased intracellular oxidative stress in MPA-resistant ECC-1 cells. Ferroptosis inducers also suppressed in vivo tumor growth more effectively in MPA-resistant ECC-1. Treatment with ferroptosis inducers could be a novel therapeutic approach for MPA-resistant endometrial cancer." @default.
• W4375843902 created "2023-05-10" @default.
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• W4375843902 date "2023-07-01" @default.
• W4375843902 modified "2023-09-29" @default.
• W4375843902 title "Medroxyprogesterone acetate-resistant endometrial cancer cells are susceptible to ferroptosis inducers" @default.
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• W4375843902 doi "https://doi.org/10.1016/j.lfs.2023.121753" @default.
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