Therefore, to evade ROS-induced cell death, cancer cells have an aberrant metabolism that promotes some agents to scavenge ROS and repair ROS-induced damage with molecules like glutathione peroxidase, glutathione-S-transferase, glutaredoxin, thioredoxin, superoxide dismutase, and catalase (Glorieux and Calderon, 2017). The gene discussed is GLRX; the disease is cancer.