Glutamine drives glutathione synthesis and contributes to radiation sensitivity of A549 and H460 lung cancer cell lines ScienceDirect Glutamate Dehydrogenase 1 Signals through Antioxidant Glutathione Peroxidase 1 to Regulate Redox Homeostasis and Tumor Growth: Cancer Cell Glutathione is often called the body's master antioxidant for a reason. Research shows it plays a major role in detoxification, oxidative stress control, liver support, and neutralizing toxic alcohol byproducts like glutathione