Expression of MT1-MMP in Kazakh ESCC cells was negatively correlated with E-cadherin expression (r = −0.307, P < 0.05, Table 4), and positively correlated with N-cadherin and vimentin expression (r = 0.256, P = 0.013 and r = 0.593, P < 0.001, respectively; Table 4). This evidence concerns the gene CDH2 and esophageal squamous cell carcinoma.