Fig. 3

hADM biocompatibility and construct formation. SEM shown the hWJ-MSCs attachment on hADM, scale bar = 30 μm (A), and Hematoxylin and Eosin staining (B) shown the infiltration of hWJ-MSCs inside hADM scaffold, scale bar = 100 μm, as indicated by arrows, respectively. In recellularized hADM, the viability of hWJ-MSCs (green) was more than 98% after 24 h, scale bar = 100 μm (C). Resazurin-based assay to monitor the proliferation of hWJ-MSCs on hADM (two donors: hADM1 and hADM2) during the culture process (D), values were normalized using a control group (cells grown on TCP). n = 3, p < 0.05. TCP tissue culture plate