Design, synthesis, and biological evaluation of nitroisoxazole containing spiro[pyrrolidin oxindole] derivatives as novel glutathione peroxidase 4 mouse double minute 2 dual inhibitors that inhibit breast adenocarcinoma cell proliferation ScienceDirect Glutathione Peroxidase Inhibitors MedChemExpress Glutathione Peroxidase Inhibitors MedChemExpress The role of glutathione peroxidase 1 in health and disease ScienceDirect The glutathione peroxidase Gpx4 prevents lipid peroxidation and ferroptosis to sustain Treg cell activation and suppression of antitumor immunity: Cell Reports