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Kämmerer, Peer W.
Pabst, Andreas M.
|Title:||Biofunctionalization of porcine-derived collagen matrices with platelet rich fibrin : influence on angiogenesis in vitro and in vivo|
|Online publication date:||4-May-2021|
|Abstract:||OBJECTIVES: Porcine-derived collagen matrices (CM) can be used for oral tissue regeneration, but sufficient revascularization is crucial. The aim of this study was to analyze the influence of platelet-rich fibrin (PRF) on angiogenesis of different CM in vitro and in vivo. MATERIALS AND METHODS: Three different CM (mucoderm®, jason®, collprotect®) were combined with PRF in a plotting process. Growth factor release (VEGF, TGF-β) was measured in vitro via ELISA quantification after 1,4 and 7 days in comparison to PRF alone. In ovo yolk sac (YSM) and chorion allantois membrane (CAM) model, angiogenic potential were analyzed in vivo with light- and intravital fluorescence microscopy after 24 h, then verified with immunohistochemical staining for CD105 and αSMA. RESULTS: Highest growth factor release was seen after 24 h for all three activated membranes in comparison to the native CM (VEGF 24 h: each p < 0.05; TGF-β: each p < 0.001) and the PRF (no significant difference). All activated membranes revealed a significantly increased angiogenic potential in vivo after 24 h (vessels per mm2: each p < 0.05; branching points per mm2: each p <0.01; vessel density: each p < 0.05) and with immunohistochemical staining for CD105 (each p < 0.01) and αSMA (each p < 0.05). CONCLUSIONS: PRF improved the angiogenesis of CM in vitro and in vivo. CLINICAL RELEVANCE: Bio-functionalization of CM with PRF could easily implemented in the clinical pathway and may lead to advanced soft tissue healing.|
610 Medical sciences
|Institution:||Johannes Gutenberg-Universität Mainz|
|Department:||FB 04 Medizin|
|Information on rights of use:||https://creativecommons.org/licenses/by/4.0/|
|Journal:||Clinical oral investigations|
|Pages or article number:||3425|
|Publisher place:||Berlin u.a.|
|Appears in collections:||JGU-Publikationen|
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