Figure 4

Quantitative RT-PCR. A: Quantitative RT-PCR for E-cadherin (left) and vimentin (right) in A549 cells. B: Quantitative RT-PCR for CTGF (left) and PDGFB (right) in A549 cells. C: Quantitative RT-PCR for COL1A1 in HFL-1 cells. Data shown are the means ± SEM. The relative expression of each gene in cells with TGF-β1 and/or TGF-β2 knockdown was compared to that in the cells transduced with NTC miRNA. Statistical significance was determined by Student’s t-test. ^* P < 0.05.