ZEB1 and non-small cell lung carcinoma: Accordingly, Western blot analysis revealed that exogenous CCL18 attenuated DHA-mediated downregulation in the expression of metastasis- and EMT-related genes, including MMP7, Snail, Slug, Vimentin, β-catenin, N-cadherin, and Zeb1, in NSCLC cells (Fig. 6A and B), further supporting the notion that DHA inhibits NSCLC cell metastasis possibly due to the downregulated CCL18 expression.