Fig. 3From: DMPE-PEG scaffold binding with TGF-β1 receptor enhances cardiomyogenic differentiation of adipose-derived stem cellsConfocal microscopy was performed to analyze (A, B) TGF-β1 binding to rTGF-β1 RI on ADSC cell membranes and to visualize (C, D) the colocalization of rTGF-β1 RI (DMPE-PEG-TGF-β1 RI-FITC) and TGF-β1 (Cy3-TGF-β1) on the surface of ADSCs at × 64 oil immersion (scale bar, 100 μm; *p < 0.05, **p < 0.01, ***p < 0.001)Back to article page