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- W2883617845 abstract "Cartilage integration remains a clinical challenge for treatment of focal articular defects. Cartilage exhibits limited healing capacity that declines with tissue maturation. Many approaches have been investigated for their ability to stimulate healing of mature cartilage or integration of repair tissue or tissue-engineered constructs with native cartilage. Growth factors present in immature tissue may enhance chondrogenesis and promote integrative repair of cartilage defects. In this study, we assessed the role of one such factor, fibroblast growth factor 18 (FGF18). Studies using FGF18 have shown a variety of positive effects on cartilage, including stimulation of chondrocyte proliferation, matrix biosynthesis, and suppression of proteinase activity. To explore the role of FGF18 on cartilage defect repair, we hypothesized that treatment with recombinant human FGF18 (sprifermin) would increase matrix synthesis in a defect model, thus improving integration strength. To test this hypothesis, 6 mm cartilage cylinders were harvested from juvenile bovine knees. A central 3 mm defect was created in each explant, and this core was removed and replaced. Resulting constructs were cultured in control or sprifermin-containing medium (weekly 24-h exposure of 100 ng/ml sprifermin) for 4 weeks. Mechanical testing, biochemical analysis, micro-CT, scanning electron microscopy, and histology were used to assess matrix production, adhesive strength, and structural properties of the cartilage-cartilage interface. Results showed greater adhesive strength, increased collagen content, and larger contact areas between core and annular cartilage in the sprifermin-treated group. These findings present a novel treatment for cartilage injuries that have potential to enhance defect healing and lateral cartilage-cartilage integration. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:2648-2656, 2018." @default.
- W2883617845 created "2018-08-03" @default.
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- W2883617845 date "2018-07-26" @default.
- W2883617845 modified "2023-10-16" @default.
- W2883617845 title "Sprifermin treatment enhances cartilage integration in an in vitro repair model" @default.
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- W2883617845 doi "https://doi.org/10.1002/jor.24048" @default.
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