selenium supplementation and glutathione peroxidase PRDX6 dictates ferroptosis sensitivity by directing cellular utilization: Molecular Cell 9.4: Selenium - Medicine LibreTexts
Description
As cyst(e)inase should leave extracellular proteins untouched, the effectiveness of cyst(e)inase treatment against several cancers in vivo suggests that either macropinocytosis is not active in these cancers or that cysteine is not derived from protein catabolism at high enough rates to support cell survival [6]

Will post again if anything severe

Nutrients 15:112

(2020) 15:e0241122

Analytical methods to investigate glutathione and related compounds in biological and pathological processes

10.1038/s41422-020-0282-0 2
