Fig. 6

Adipogenic differentiation of human mesenchymal stem cells. Representative images of commercial and non-commercial bone marrow (BM)-, adipose tissue (AT)- and umbilical cord (UC)- derived human mesenchymal stem cells (hMSCs) expanded in Reference Medium, and xeno-free medium with and without platelet lysate (PL-Medium, XF-Medium). hMSCs were cultured for 14 days in adipogenic differentiation medium or the medium of expansion. Lipid vesicles in adipocytes were stained with Oil Red O and are seen in red