Fig. 3From: Chm-1 gene-modified bone marrow mesenchymal stem cells maintain the chondrogenic phenotype of tissue-engineered cartilageHistologic analyses in chondrogenically differentiated cells and the vascularization in newly formed tissue in vivo. The specimens were transplanted into nude mice. Appearance of specimens 1 month and 2 months post transplantation for a chondrocyte–coral composites, b chondrocytes and MSCs coseeded into natural coral scaffolds in a ratio of 1:1, c MSC–coral composites, and d T-MSC–coral composites. The specimens were processed for histologic staining with H & E, TB, and MTS. Red arrows indicate endochondral ossification. Black arrows indicate vascular structures. H&E hematoxylin and eosin, MTS Masson’s trichrome staining, TB toluidine blue (Color figure online)Back to article page