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[Vascular endothelial growth factor-loaded microspheres promote dental pulp regeneration and vascularization].
Zhonghua Kou Qiang Yi Xue za Zhi = Zhonghua Kouqiang Yixue Zazhi = Chinese Journal of Stomatology 2018 January 10
Objective: To evaluate the effect of vascular endothelial growth factor (VEGF)-loaded microspheres on dental pulp tissue regeneration and vascularization in vivo . Methods: In vitro release experiment and human umbilical vein endothelial cell migration experiment were conducted with VEGF loaded microspheres. The dental pulp stem cells (DPSC) were co-cultured with VEGF microspheres to observe the compatibility between the cells and the microspheres. DPSC and VEGF loaded microspheres were injected into the root lumen through the apical foramen, which were then transplanted subcutaneously into nude mice. Histological and immunohistochemical features were observed after nine weeks. Results: DPSCs attached and spread on the surface of the microspheres. HE staining showed that the regenerated pulp-like tissue fulfilled the whole apex and middle third of the root. Differentiated odontoblast-like cells aligned with the existing tubular root dentin. Conclusions: VEGF-loaded microspheres promoted the regeneration of pulp-like tissues and formation of blood vessels.
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