Fig. 2

Characterization of hEnSCs. a Morphological characteristics of hEnSCs at passage 3 (scale bar = 100 μm); b Flow cytometry analysis of hEnSCs surface markers demonstrated positive expression of CD90, CD44, and CD105 (mesenchymal stromal cell markers) and negative expression of CD31 (endothelial cell marker) and CD34 (hematopoietic cell markers) in hEnSCs