Fig. 6From: Enhanced angiogenic potential of adipose-derived stem cell sheets by integration with cell spheroids of the same sourceEffect of conditioned medium collected from monolayer ASCs, ASC sheets and spheroid on sheet cultures on the in vitro tube formation of HUVECs. a Representative microscopic images of endothelial cells after incubation with respective conditioned medium-supplemented EBM. HUVECs cultured in EGM2 served as a positive control, and those in DMEM-HG-supplemented EBM served as a negative control (n = 3). b Branching nodes, junctions, meshes and segments per power field were compared among different groups except the positive control. (*p < 0.05, **p < 0.01 from the negative control group; #p < 0.05 between the indicated groups)Back to article page