ZEB1 and esophageal squamous cell carcinoma: Meng et al. [62] discovered that circ-DOCK5, weakly expressed in ESCC, is modulated by Zeb1 and Zeb1-repressed RNA binding proteins, which can act as miR-627-3p molecular sponges, weakening the inhibitory effect of miR-627-3p on the TGFBR2, and ultimately exerting a suppressive effect on cellular EMT and metastasis.