ArticleInflammopharmacology2024
On the origin of cysteamine-induced duodenal cytotoxicity and type II ferroptosis.
Article in Inflammopharmacology, 2024. 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
Cysteamine (CA) induces duodenal ulcers in rodents (Selye and Szabo, Nature 244:458-459, 1973). Cysteine (Cys), a precursor for the formation of CA (via catabolism of coenzyme A), does not cause lesions in the duodenum (Szabo et al., J Pharmacol Exp Ther 223:68-76, 1982). CA also has antimutagenic and anticancer pharmacology (Fujisawa et al., PLoS ONE 7, 2012; Lee, Adv Pharmacol Pharm Sci 2023:2419444, 2023). We propose a mechanism of CA-induced cell death dependent on oxygen and CA dioxygenase (ADO) that can explain the 50-year-old mystery as to why CA is, but Cys is not, ulcerogenic. Those cells expressing coenzyme A-catabolizing enzymes are subject to a unique type of oxygen- and enzyme-bound-Fe
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