Abstract：
:Meniscal tears have a poor healing capacity, and damage to the meniscus is associated with significant pain, disability, and progressive degenerative changes in the knee joint that lead to osteoarthritis. Therefore, strategies to promote meniscus repair and improve meniscus function are needed. The objective of this study was to generate porcine meniscus-derived matrix (MDM) scaffolds and test their effectiveness in promoting meniscus repair via migration of endogenous meniscus cells from the surrounding meniscus or exogenously seeded human bone marrow-derived mesenchymal stem cells (MSCs). Both endogenous meniscal cells and MSCs infiltrated the MDM scaffolds. In the absence of exogenous cells, the 8% MDM scaffolds promoted the integrative repair of an in vitro meniscal defect. Dehydrothermal crosslinking and concentration of the MDM influenced the biochemical content and shear strength of repair, demonstrating that the MDM can be tailored to promote tissue repair. These findings indicate that native meniscus cells can enhance meniscus healing if a scaffold is provided that promotes cellular infiltration and tissue growth. The high affinity of cells for the MDM and the ability to remodel the scaffold reveals the potential of MDM to integrate with native meniscal tissue to promote long-term repair without necessarily requiring exogenous cells.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Ruprecht JC,Waanders TD,Rowland CR,Nishimuta JF,Glass KA,Stencel J,DeFrate LE,Guilak F,Weinberg JB,McNulty ALdoi
10.1038/s41598-019-44855-3subject
Has Abstractpub_date
2019-06-18 00:00:00pages
8719issue
1issn
2045-2322pii
10.1038/s41598-019-44855-3journal_volume
9pub_type
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