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Dual Delivery of TGF-β3 and Ghrelin in Microsphere/Hydrogel Systems for Cartilage Regeneration
oleh: Jianjing Lin, Li Wang, Jianhao Lin, Qiang Liu
Format: | Article |
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Diterbitkan: | MDPI AG 2021-09-01 |
Deskripsi
Articular cartilage (AC) damage is quite common, but due to AC’s poor self-healing ability, the damage can easily develop into osteoarthritis (OA). To solve this problem, we developed a microsphere/hydrogel system that provides two growth factors that promote cartilage repair: transforming growth factor-β3 (TGF-β3) to enhance cartilage tissue formation and ghrelin synergy TGF-β to significantly enhance the chondrogenic differentiation. The hydrogel and microspheres were characterized in vitro, and the biocompatibility of the system was verified. Double emulsion solvent extraction technology (<i>w</i>/<i>o</i>/<i>w</i>) is used to encapsulate TGF-β3 and ghrelin into microspheres, and these microspheres are encapsulated in a hydrogel to continuously release TGF-β3 and ghrelin. According to the chondrogenic differentiation ability of mesenchymal stem cells (MSCs) in vitro, the concentrations of the two growth factors were optimized to promote cartilage regeneration.