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BEL suppresses the TβR phosphorylation induced by TGF-β1 in CFs (A and B) Western blotting detects TβRⅠ and TβRⅡ expression and phosphorylation level. Bar graphs show fold changes for the ratio of phosphorylated (P)-TβRI/TβRI, and P-TβRⅡ/TβRⅡ as analyzed by western blotting. GAPDH was used as a loading control (n = 3). Data were shown as mean ± SEM. **p < 0.01 vs. control, # p < 0.05 vs. TGF-β1, ## p < 0.01 vs. TGF-β1.
