Xenogenic Implantation of Equine Synovial Fluid-Derived Mesenchymal Stem Cells Leads to Articular Cartilage Regeneration

Figure 5

Histological and gross analyses. Gross appearance of the osteochondral defect twelve weeks after treatment with BMMSCs or SFMSCs, the arrowheads point to the edges of the defect (top panel). Representative histological results using light microscopy twelve weeks posttherapy. H&E staining (middle panel) and Masson trichrome staining (bottom panel) illustrate lack of “abnormal” cells and collagen growth in the defect.