68341-12-8

CuATSP, a potent inhibitor of ferroptotic cell death, is almost 20-fold more potent than CuATSM.

CuATSP is a CuATSM analog with >10-fold enhanced ferropotosis inhibitory potency (CuATSP/CuATSM IC50 against 150 nM RSL3-induced ferroptosis = 8.5/160 nM using Pfa1 mouse embryonic fibroblasts,16/170 nM using HT-22 mouse hippocampal cells). CuATSP and CuATSM exert their radical-trapping antioxidant (RTA) and (phospho)lipid peroxidation inhibitory potency via an initial reversible addition of a peroxyl radical to the bis(thiosemicarbazone) ligandfollowed by a subsequent H-atom transfer (HAT) th at drives the reaction forward.

Store at -20°C

[1] Zilka O, et al. Radical-Trapping Antioxidant Activity of Copper and Nickel Bis(Thiosemicarbazone) Complexes Underlies Their Potency as Inhibitors of Ferroptotic Cell Death. J Am Chem Soc. 2021 Nov 17;143(45):19043-19057. DOI:10.1021/jacs.1c08254