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Characterization and angiogenic potential of xenogeneic bone grafting materials: Role of periodontal ligament cells

Abstract : Adequate revascularization is a prerequisite for successful healing of periodontal bone defects. This study characterized three different xenogeneic bone grafting materials: Gen-Os of equine and porcine origins, and anorganic Bio-Oss. We also investigated their angiogenic potential. All materials were composed of poorly crystalline calcium oxide phosphate, with Bio-Oss exhibiting a carbonated phase and larger particle size and both Gen-Os showing the presence of collagen. Both Gen-Os materials significantly enhanced vascular endothelial growth factor (VEGF) secretion by PDL cells. A significant increase in endothelial cell proliferation was observed in cultures with both Gen-Os conditioned media, but not with that of Bio-Oss. Finally, angiogenesis was stimulated by both Gen-Os conditioned media as demonstrated by an increased formation of capillary-like structures. Taken together, these findings indicate an enhanced angiogenic potential of both Gen-Os bone grafting materials when applied on PDL cells, most likely by increasing VEGF production.
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Charlotte Rombouts, Charlotte Jeanneau, Josette Camilleri, Patrick Laurent, Imad About. Characterization and angiogenic potential of xenogeneic bone grafting materials: Role of periodontal ligament cells. Dental Materials Journal, Japanese Society for Dental Materials and Devices, 2016, 35 (6), pp.900-907. ⟨10.4012/dmj.2016-005⟩. ⟨hal-01458934⟩

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