In addition, the effects of ZEB1 in prostate cancer cells were mediated by Src signalling; that is PP2, a specific inhibitor of the Src signalling, dose dependently reduced the p‐Src527 level but not p‐Src416 level, while ZEB1 knockdown also down‐regulated the level of p‐Src527 in PC3 and DU‐145 cells. This evidence concerns the gene ZEB1 and prostate carcinoma.