CDH2 and cancer: We also found that the expression of mesenchymal markers (CDH2 and VIM) was negatively correlated with the resistance to ferroptosis inducers, including ML162, ML210, and RSL3; while the epithelial marker CDH1 was positively correlated with the resistance to these ferroptosis inducers by using Cancer Therapeutics Response Portal [35] (Fig. 6B and Supplementary Fig. S5A, B).