Figure 5: Endothelialisation: The ultra-structural analysis using SEM showed a densely covered surface of the tissue engineered heart valve leaflets and spindle shaped cells when seeded with human adipose derived stem (ADSC) (A). In contrast endothelial structures were visible after coating with ADSC derived endothelial-like cells (B). This superficial endothelial cell lining were also confirmed by the immuno-histological detection of the endothelial marker CD31 (C).