Figure 2.
Effects of EGCG on TGF-β1-induced epithelial-to-mesenchymal transition (EMT) in vitro. 8505C cells were pretreated for 1 h with EGCG, followed by incubation with TGF-β1 for 48 h. (a) Expression of EMT markers in TGF-β1-stimulated 8505C cells was detected by western blot assay. (b) Immunofluorescence double staining for E-cadherin (red) and vimentin (red) in TGF-β1-stimulated 8505C after treatment of EGCG. Cells was counterstained with Hoechst 33342 (blue). Magnifications ×200; (c) Expression of the E-cadherin transcription repressors in TGF-β1-stimulated 8505C cells was detected by western blot assay. The data are representative of three similar experiments and quantified as mean values ± S.E, vs control, aP<0.05; vs TGF-β1,bP<0.05.