Human UCB-MSC SCB4 express neural progenitor marker without losing their MSC identity. (A) to (H) Expression of neural stem cell (NSC) marker Musashi was significantly high in human umbilical cord blood-derived mesenchymal stem cell (hUCB-MSC) SCB4 and co-expressed with CD29 when compared with RCB 2080 (I) to (P). Although the RCB 2080 cell line showed the presence of the NSC marker Sox2, the expression was comparatively high in hUCB-MSC SCB4 and co-localized with CD44. (Q) to (X) Similar co-localization was also seen in hUCB-MSC SCB4 upon Vimentin-Musashi co-immunostaining, whereas co-localization was very low in control RCB 2080. Scale bar = 100 μm. DAPI, 4',6-diamidino-2-phenylindole.