Figure 1.

OST inhibited TGF-β1-induced morphological change. Cells were treated with OST (A) or TGF-β1 (B) or TGF-β1 (5 ng/ml) co-treated with OST (C) for 48 h and the cell viability was determined by MTT assay. Cells were treated with TGF-β1 for 48 h, the cell morphology was observed (D and E). Cells were treated with TGF-β1 (5 ng/ml) with or without OST co-treatment for 48 h and the cell morphology was observed (F). Scale bar = 100 μm. Magnification, ×20. *p < 0.05 vs control, **p < 0.01 vs control. OST, osthole.