Figure 1.

Analysis of phenotypic traits exhibited by primary umbilical cord blood mesenchymal stem cell (UCBMSC) cultures. Representative flow cytometric data showing expression levels of MSC-specific, endothelial-specific (middle), and hematopoietic-specific (bottom) cell surface markers by established cultures of UCBMSCs. Gate boundaries were performed using isotype controls (top; overlaid with marker in bottom plot), and dead cells were excluded using viability dye (data not shown). Abbreviations: FITC, fluorescein isothiocyanate; PE, phycoerythrin.