ZEB1 and esophageal squamous cell carcinoma: The data revealed that the relative levels of ZEB1‐AS1 in ESCC cells (EC9706, Eca109, TE1, Kyse70 and Kyse450) were dramatically higher than those in Het‐1A cell (P < .01), in which EC9706 and TE1 cells exhibited the highest ZEB1‐AS1 level.