The expression of EMT phenotype marker induced by TNF-α treatment. TNF-α upregulates mesenchymal markers expression and downregulates epithelial markers expression. A: mRNA levels for E-cadherin, Vimentin, Slug and ZEB1 in untreated (control) and TNF-α treated in ACHN cell line after 4 days of treatment; B: mRNA levels for E-cadherin, Vimentin, Slug and ZEB1 in untreated (control) and TNF-α treated in 786-0 cell line after 4 days of treatment; C: Western blotting analysis for E-cadherin, Vimentin, Slug and ZEB1 in untreated (control) and TNF-α treated in ACHN cell line after 4 days of treatment; D: Western blotting analysis for E-cadherin, Vimentin, Slug and ZEB1 in untreated (control) and TNF-α treated in 786-0 cell after 4 days of treatment. *P < 0.05 compared to Control.