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Intra-articular delivery of synovium-resident mesenchymal stem cells via BMP-7-loaded fibrous PLGA scaffolds for cartilage repair
- Intra-articular delivery of synovium-resident mesenchymal stem cells via BMP-7-loaded fibrous PLGA scaffolds for cartilage repair
- Kim, Hee Jung; Han, Min Ah.; Shin, Ji Young; Jeon, Jeong Hwa; Lee, Seung Jin; Yoon, Mi Yun; Kim, Han-Jun; Choi, Eun-Ji; Do, Sun Hee; Yang, Victor C.; He, Huining; Yang, Young-Il
- Ewha Authors
- 이승진; 김희정
- SCOPUS Author ID
- 이승진; 김희정
- Issue Date
- Journal Title
- JOURNAL OF CONTROLLED RELEASE
- JOURNAL OF CONTROLLED RELEASE vol. 302, pp. 169 - 180
- Synovium-resident mesenchymal stem cells; Bone morphogenetic protein-7; Combined delivery; PLGA fibrous scaffold; Articular cartilage repair
- ELSEVIER SCIENCE BV
- SCIE; SCOPUS
- Document Type
- Delivery of synovium-resident mesenchymal stem cells (synMSCs) to cartilage defect site might provide a novel therapeutic modally for treatment of articular cartilage diseases. However, low isolation efficiency of synMSCs limits their therapeutic application. Niche-preserving non-enzymatic isolation of synMSCs was firstly attempted by employing micro-organ culture system based on recapitulating tissue-specific homeostasis ex vivo. The isolated synMSCs retained superior long-term growth competency, proliferation and chondrogenic potential to bone marrow-derived MSCs (BMSCs). It was noted that synMSCs demonstrated 9-fold increase in cartilaginous micro-tissue formation and 13-fold increase in sulfated proteoglycans deposition compared to BMSCs. For delivery of synMSCs, fibrous PLGA scaffolds were specifically designed for full-thickness osteochondral defects in rabbits. The scaffolds provided effective micro-environment for growth and host-integration of synMSCs. Combined delivery of synMSCs with bone morphogenetic proteins-7 (BMP-7) was designed to achieve synergistic therapeutic efficacy. BMP-7-loaded PLGA nanoparticles electrosprayed onto the scaffolds released BMP-7 over 2 weeks to conform with its aimed role in stimulating early stage endochondral ossification. Scaffold-supported combined administration of synMSCs with BMP-7 resulted in high proteoglycan and collagen type II induction and thick hyaline cartilage formation. Intra-articular co-delivery of synMSCs with BMP-7 via fibrous PLGA scaffolds may be a promising therapeutic modality for articular cartilage repair.
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