FIG. 3.

Engraftment of injected UCB-MSCs. Fluorescent immunohistochemical detection of the PKH26-labeled UCB-MSCs (red), which colocalized with (A) cytokeratin⁺ urothelium and (B) vimentin⁺ stromal tissue (green) in the IC bladder tissues at 1 week after stem cell injection. Nuclei were stained with DAPI (blue). The dotted line indicates the margin between the urothelium and stromal tissues. The left and right panel images are magnified ×200 and ×400, respectively. DAPI, 4′,6-diamino-2-phenylindole.