Research Article
A Controlled Release Codelivery System of MSCs Encapsulated in Dextran/Gelatin Hydrogel with TGF-β3-Loaded Nanoparticles for Nucleus Pulposus Regeneration
Figure 1
Schematic diagram of establishing the codelivery system of MSCs encapsulated in the dextran/gelatin hydrogel with the TGF-β3-loaded nanoparticles. After the TGF-β3-loaded PLGANPs were prepared using the W/O/W method, the MSCs and the TGF-β3-loaded PLGANPs were incubated with the Oxi-Dex and amino-Gel solution. The codelivery system was formed by the Schiff-based reaction between the Oxi-Dex and amino-Gel. The TGF-β3 could be released gradually with degradation of the PLGANPs for long-term discogenesis differentiation.