ZEB2 and esophageal squamous cell carcinoma: Correlating with our previous finding that a low expression of miR-200b was associated with a poor prognosis in ESCC patients [11], we found that a high expression of ZEB2 significantly correlated with a shorter overall survival (P = 0.034), although the correlation between ZEB1 and survival just fell short of statistical significance (P = 0.078) (Figure 2E).