[Retracted] ECM-Mimicking Hydrogels Loaded with Bone Mesenchymal Stem Cell-Derived Exosomes for the Treatment of Cartilage Defects

Figure 5

GelMA-Exos significantly promotes the repair of knee articular cartilage injury in rats. (a) Schematic diagram of cartilage defect surgery; (b) in vivo imaging of rats seven days after GelMA-Exos implantation with or without hydrogel (PKH26-labeled exosomes can be observed in red); (c) H&E and Masson staining images of the injury site.

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