Fig. 4

Comparison of the similarities and differences regarding different MSCs submicroscopic structure and karyotype and factors secreted from MSCs of different sources. a TEM images of MSCs derived from different tissues. The red arrows represent the abundant organelles and many membrane-secreted granules, which were spherical or pear-shaped, contained in the cytoplasm. Scale bar = 2 μm. b Karyotype analysis of MSCs from different origins. UC-MSCs, AM-MSCs, CM-MSCs, and CV-MSCs all exhibited a normal 46, XY karyotype, while DC-MSCs were maternal cells and exhibited a normal 46, XX karyotype (n = 10 per condition). c Comparison of the similarities and differences regarding different MSC factors secreted from MSCs of different sources. Error bars represent SEM (n = 10 per condition). (*p < 0.05, **p < 0.01, ***p < 0.001)