Comparison between Intra-Articular Injection of Infrapatellar Fat Pad (IPFP) Cell Concentrates and IPFP-Mesenchymal Stem Cells (MSCs) for Cartilage Defect Repair of the Knee Joint in Rabbits

Figure 3

The three-way differentiation and staining results of IPFP-MSCs isolated from three rabbits. (a, b) After staining with Oil red O for adipogenic differentiation, red lipid droplets fused into pieces can be seen. (c, d) After staining with Alizarin red for osteogenic differentiation, there were red calcium nodules fused into masses. (e, f) After staining with Alcian blue for chondrogenic differentiation, a large amount of blue-stained acid mucopolysaccharide appears among the cells.

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