For example, in RAS‐driven pancreatic ductal adenocarcinoma, BACH1 directly represses the expression of the transcription factor FOXA1, which is known to activate the expression of CDH1 encoding E‐cadherin, CLDN3, and CLDN4 to induce the EMT and tumor metastasis.17 The gene discussed is CDH1; the disease is pancreatic ductal adenocarcinoma.