Journal: Acta Pharmacologica Sinica
Article Title: Paeoniflorin suppresses TGF-β mediated epithelial-mesenchymal transition in pulmonary fibrosis through a Smad-dependent pathway
doi: 10.1038/aps.2016.36
Figure Lengend Snippet: Time course of the effect of paeoniflorin (Pae) on TGF-β1-induced epithelial-mesenchymal transition in A549 cells. A549 cells were seeded into plates and incubated with serum-free RPMI-1640 for 2 h. Then, the cells were incubated with TGF-β1 (2 ng/mL) or TGF-β1 (2 ng/mL) plus Pae (1, 3, 10 and 30 μmol/L) for the indicated intervals. (A) Cell morphology was recorded using an inverted microscope (magnification 200×). (B) The expression levels of E-cadherin, Vimentin and α-SMA were detected using Western blot analysis, as described in the Methods section. GAPDH was used as the internal control. (C) The protein levels of E-cadherin, Vimentin and α-SMA were determined using Real-Time Quantitative PCR, as described in the Methods section. (D) The cell supernatants were collected, and the amount of type I collagen was detected using ELISA, as described in the Methods section. The data are expressed as the mean±SD. n=3. ##P<0.01 vs normal. *P<0.05, **P<0.01 vs TGF-β1.
Article Snippet: Cell culture Human type II alveolar epithelial cell lines (A549), obtained from the American Type Culture Collection (ATCC), were cultured in RPMI-1640 containing 10% FBS, 100 units/mL penicillin, 100 μg/mL streptomycin and maintained at 37 °C in a 5% CO 2 humidified atmosphere.
Techniques: Incubation, Inverted Microscopy, Expressing, Western Blot, Control, Real-time Polymerase Chain Reaction, Enzyme-linked Immunosorbent Assay