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- W1671689447 abstract "Tissue engineering is considered a promising future option for nasal cartilage repair. However, until now, an optimal material has not been identified for this specific purpose. Therefore, the aim of this study was to analyze a recently developed decellularized collagen matrix, which has promising material properties for septal cartilage repair. A tetrazolium dye based cytotoxicity assay using rat nasal septum chondrocytes was performed to examine the cytotoxic effects of decellularized cartilage matrices. Unseeded scaffolds as well as scaffolds seeded with chondrocytes were implanted in nasal septum defects in Lewis rats to investigate the cellular and humoral inflammatory responses in the surrounding tissue as well as the effect on the formation of nasal septum perforations. Samples were analyzed histochemically and immunohistochemically after 1, 4, and 12 weeks. Although cells for the cytotoxicity assay were cultured under serum-free conditions for 24 h to increase sensitivity, no cytotoxic effects were detected. Histological and immunohistochemical evidence displayed that the implanted scaffolds induced minor macrophage and lymphocyte infiltration and were well integrated at the contact site to native cartilage and between the mucosal membranes. The biocompatibility index revealed only slightly irritating effects during the study period. Septal perforations were prevented efficiently. In summary, our results provide evidence that decellularized xenogeneic collagen scaffolds are suitable for cartilage tissue engineering. The scaffolds were integrated well into septal cartilage defects without causing a strong inflammatory reaction and prevented the development of nasal septum perforations. Therefore, we envision the possibility to use them in nasal cartilage repair in the future." @default.
- W1671689447 created "2016-06-24" @default.
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- W1671689447 date "2014-06-01" @default.
- W1671689447 modified "2023-09-23" @default.
- W1671689447 title "<i>In Vitro</i>Cytotoxicity and<i>In Vivo</i>Effects of a Decellularized Xenogeneic Collagen Scaffold in Nasal Cartilage Repair" @default.
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- W1671689447 doi "https://doi.org/10.1089/ten.tea.2013.0365" @default.
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