Expanding and differential roles of ZEB1 and ZEB2 have been identified in various types of cancers in recent years (Chaffer et al., 2013; Krebs et al., 2017; Mejlvang et al., 2007; Morel et al., 2017; Si et al., 2015; Spaderna et al., 2008). This evidence concerns the gene ZEB1 and cancer.