Fig. 3From: TGF-β1-induced epithelial–mesenchymal transition in lung cancer cells involves upregulation of miR-9 and downregulation of its target, E-cadherinTGF-β1 promotes the expression of miR-9 and inhibits the expression of E-cadherin mRNA. After treatment with TGF-β1 (5 ng/ml) for 24 h, the expressions of miR-9 (a) and E-cadherin mRNA (b) in A549 cells were detected using qRT-PCR. Control cells without TGF-β1 treatment. *p < 0.01 vs. controlBack to article page