SNAI2 and non-small cell lung carcinoma: As shown in Figure 5C and Figure S8D, the expression level of E‐cadherin and ZO‐1 was decreased, and that of vimentin, MMP‐2, MMP‐9, TWIST, SLUG, SNAIL, ZEB1 and N‐cadherin was significantly increased in CCL2 overexpressed NSCLC cells.