While expression of ZEB1 and ZEB2 is suppressed by epithelial miR‐200 family of miRNA (Gregory et al., 2008), TGF‐β induces their expression in addition to some other EMT‐related transcription factors, including Snail, and Slug, in certain types of normal and cancer cells (Gregory et al., 2011; Heldin et al., 2012; Miyazono et al., 2012; Xu et al., 2009). This evidence concerns the gene ZEB1 and cancer.