GPX4 and cancer: In this review, different databases, including PubMed, Google Scholar, NIH National Library of Medicine, Scopus, and Web of Sciences, were surveyed to retrieve data using a series of search terms, namely “Ferroptosis, Neoplasms/therapy (for Cancer Therapy), Drug Resistance, Iron Metabolism, Glutathione Peroxidase/metabolism (for GPX4), Lipid metabolism” and articles published after the year 2000 were preferred.