Figure 6From: High efficient isolation and systematic identification of human adipose-derived mesenchymal stem cellsImmunocytochemical analysis and ultrastructure of hADSCs under endothelial differentiation. (A) The expression of endothelial-specific protein vascular endothelial growth factor receptor-2 (KDR), CD34 and CD31 were detected by diaminobenzidine staining of the secondary antibody (Bars = 50 μm). (B) Ultrastructural images showed clear specific endothelial granule, the Weibel-Palade body (arrow) (Bars = 200 nm).Back to article page