Glutathione System from Cyanobacteria to Higher Eukaryotes Encyclopedia MDPI The glutathione peroxidase Gpx4 prevents lipid peroxidation and ferroptosis to sustain Treg cell activation and suppression of antitumor immunity: Cell Reports Enzymatic and Non enzymatic defense against ROS Frontiers Glutathione: A Samsonian life sustaining small molecule that protects against oxidative stress, ageing and damaging inflammation File:Reductive half reaction of glutathione reductase.png Wikimedia Commons