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Wei B, Xu Y, Tang C, Liu NQ, Li X, Yao Q, Wang L. An injectable active hydrogel based on BMSC-derived extracellular matrix for cartilage regeneration enhancement. Biomater Adv 2024; 160:213857. [PMID: 38657287 DOI: 10.1016/j.bioadv.2024.213857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/20/2024] [Accepted: 04/11/2024] [Indexed: 04/26/2024]
Abstract
Articular cartilage injury impairs joint function and necessitates orthopedic intervention to restore the structure and function of the cartilage. Extracellular matrix (ECM) scaffolds derived from bone marrow mesenchymal stem cells (BMSCs) can effectively promote cell adhesion, proliferation, and chondrogenesis. However, pre-shaped ECM scaffolds have limited applicability due to their poor fit with the irregular surface of most articular cartilage defects. In this study, we fabricated an injectable active ECM hydrogel from autologous BMSCs-derived ECM by freeze-drying, liquid nitrogen milling, and enzymatic digestion. Moreover, our in vitro and in vivo results demonstrated that the prepared hydrogel enhanced chondrocyte adhesion and proliferation, chondrogenesis, cartilage regeneration, and integration with host tissue, respectively. These findings indicate that active ECM components can provide trophic support for cell proliferation and differentiation, restoring the structure and function of damaged cartilage.
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Affiliation(s)
- Bo Wei
- Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China; Cartilage Regeneration Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China.
| | - Yan Xu
- Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China; Cartilage Regeneration Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Cheng Tang
- Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China; Cartilage Regeneration Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Nancy Q Liu
- Department of Orthopaedic Surgery, University of Southern California, Los Angeles, CA 90007, USA
| | - Xuxiang Li
- Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China; Cartilage Regeneration Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Qingqiang Yao
- Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China; Cartilage Regeneration Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Liming Wang
- Department of Orthopaedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China; Cartilage Regeneration Center, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China.
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