Fig. 7.

CM-Dil-positive cells in the Si-CaP/AFPBP/BMSCs group were observed by fluorescence microscopy at 4, 8, and 12 weeks after the operation compared with HE-stained sections in the same field of view. (A) CM-Dil-positive cells (blue arrows) in soft tissue at 4 weeks; (B) CM-Dil-positive cells (blue arrows) in bone matrix at 4 weeks; (C) CM-Dil-expressing chondrocytes (yellow arrows) in cartilage matrix at 8 weeks; (D) CM-Dil-positive osteocytes (green arrows) in bone matrix at 8weeks; (E) CM-Dil-positive osteocytes (green arrows) in the new bone lacunae at 12 weeks.