Fig. 4

Cell morphology analysis of hTSPCs on the DCM. a Representative images of Phalloidin-based F-actin staining of hTSPCs grown on DCM on days 3, 5 and 7. The white rectangle indicates the area shown on the right images at higher magnification. b The surface topography of the DCM and the cell morphology of hTSPCs loading on DCM at day 3 were determined by SEM. The black rectangle indicates the area shown on the right images at higher magnification. NCM: native cartilage matrix; DCM: decellularized cartilage matrix