Erastin treatment led to increased ChaC glutathione specific gamma-glutamylcyclotransferase 1 (CHAC1) staining and decreased recombinant solute carrier family 7, member 11 (SLC7A11) staining in sham tumor tissue (Supplementary Fig. 3) that were well responsive to erastin. The gene discussed is SLC17A1; the disease is neoplasm.