Figure 5: Functional coupling of implanted hiPSC-ECTs.

(a) cTnT immunostaining for lectin (represents perfused vasculature)-perfused rat heart 4 weeks after implantation of hiPSC-ECTs (including 16% MCs). (i) Lower magnification image. (ii) and (iii) Higher magnification images. Perfused vasculature among (ii) and at central area (iii) of regenerated myocardium (arrows). (b) Cx43 (Connexin 43) and cTnT double immunostaining for regenerated myocardium. Scale bars: 1mm in (a) (i), 100 μm in (a) (ii, iii), 20 μm in (b) (main panel), and 10 μm in (b) (inset).