Fig. 1

Primary culture and characterisation of HUCMSCs. A Morphological features of HUCMSCs at third passage. The magnification is × 100. B Representative flow cytometry histograms of HUCMSCs. C Adipogenic differentiation of HUCMSCs assessed by Oil Red O staining. The magnification is × 200. D Osteogenic differentiation of HUCMSCs assessed by Alizarin Red S staining. The magnification is × 200. E Representative immunofluorescence results of CCSMCs show positive expression for α-SMA and desmin. The magnification is × 100. HUCMSCs human umbilical cord mesenchymal stem cells, CCSMCs corpus cavernosum smooth muscle cells, α-SMA α-smooth muscle actin, DAPI 4’,6-diamidino-2-phenylindole