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Moreover, exposure of cancer cells to stimuli such as hypoxia, radiation and chemotherapy causes cell damages and leads to protein degradation, resulting in increased levels of TCA cycle intermediates and in an enhanced haem biosynthesis 49,50

Given that this regulation is independent of NRF2, our results suggest the presence of a potential signaling pathway regulated by GSH availability

Additionally, engineered enzymes that degrade extracellular L-cystine and L-cysteine and thereby indirectly inhibit xCT, blocking intracellular GSH production and upregulating ROS, have shown promise in preclinical models 70

Zein is a hydrophobic protein that exhibits amphiphilic properties, which help it self-assemble into compact, energetically favorable spheres when precipitated from its solvent into the antisolvent

Some are self-neutralizingmeaning they deactivate on their ownwhile others need to be manually removed

The two peptides act through distinct receptors the GHRH receptor and the ghrelin receptor that converge on the same somatotroph cell population in the anterior pituitary