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Vitronectin-Derived Peptide Promotes Reparative Dentin Formation
Journal of Dental Research ( IF 5.7 ) Pub Date : 2022-06-16 , DOI: 10.1177/00220345221101506
C Park 1, 2 , M Song 3 , S Y Kim 2 , B M Min 1
Affiliation  

Exposed dental pulp can maintain its vitality through a pulp-capping procedure with biocompatible materials, followed by reparative dentin formation. Our previous study demonstrated that a vitronectin-derived peptide (VnP-16) promotes osteoblast differentiation and concomitantly restrains osteoclast differentiation and resorptive function. In this study, we aimed to demonstrate that VnP-16 promotes odontoblast differentiation, mineralization, and reparative dentin formation in a pulp exposure model using a rat tooth. VnP-16 showed no cytotoxicity and promoted cellular behavior in human dental pulp cells, enhancing their differentiation into odontoblast-like cells and mineralization, effects that are comparable to those obtained with vitronectin. In a rat pulp exposure model, VnP-16 showed mild inflammatory responses at 2 and 4 wk or none. Mineral trioxide aggregate (MTA) demonstrated a tendency of early formation of reparative dentin at 2 wk when compared with recombinant human bone morphogenetic protein 2 (rhBMP-2) and VnP-16. However, VnP-16 induced reparative dentin formation similar to MTA and rhBMP-2 without inflammation at 4 wk. In addition, VnP-16 showed a thicker and homogeneous reparative dentin formation versus MTA and rhBMP-2. Collectively, these results suggest that VnP-16 can be a useful, direct pulp-capping agent for highly qualified reparative dentin formation by promoting cell behavior and odontoblastic differentiation of human dental pulp cells.



中文翻译:

玻连蛋白衍生肽促进修复性牙本质形成

暴露的牙髓可以通过使用生物相容性材料的盖髓程序保持其活力,然后形成修复性牙本质。我们之前的研究表明,玻连蛋白衍生肽(VnP-16)促进成骨细胞分化并同时抑制破骨细胞分化和吸收功能。在这项研究中,我们旨在证明 VnP-16 在使用大鼠牙齿的牙髓暴露模型中促进成牙本质细胞分化、矿化和修复性牙本质形成。VnP-16 在人牙髓细胞中没有表现出细胞毒性并促进细胞行为,增强了它们向成牙本质细胞样细胞的分化和矿化作用,其效果与使用玻连蛋白获得的效果相当。在大鼠牙髓暴露模型中,VnP-16 在 2 周和 4 周时表现出轻微的炎症反应或没有。与重组人骨形态发生蛋白 2 (rhBMP-2) 和 VnP-16 相比,矿物三氧化物聚集体 (MTA) 在 2 周时表现出早期形成修复性牙本质的趋势。然而,VnP-16 诱导修复性牙本质形成类似于 MTA 和 rhBMP-2,在 4 周时没有炎症。此外,与 MTA 和 rhBMP-2 相比,VnP-16 显示出更厚且均匀的修复性牙本质形成。总之,这些结果表明,VnP-16 可以通过促进人牙髓细胞的细胞行为和成牙本质细胞分化,成为一种有用的直接盖髓剂,用于高质量的修复性牙本质形成。VnP-16 诱导修复性牙本质形成类似于 MTA 和 rhBMP-2,在 4 周时没有炎症。此外,与 MTA 和 rhBMP-2 相比,VnP-16 显示出更厚且均匀的修复性牙本质形成。总之,这些结果表明,VnP-16 可以通过促进人牙髓细胞的细胞行为和成牙本质细胞分化,成为一种有用的直接盖髓剂,用于高质量的修复性牙本质形成。VnP-16 诱导修复性牙本质形成类似于 MTA 和 rhBMP-2,在 4 周时没有炎症。此外,与 MTA 和 rhBMP-2 相比,VnP-16 显示出更厚且均匀的修复性牙本质形成。总之,这些结果表明,VnP-16 可以通过促进人牙髓细胞的细胞行为和成牙本质细胞分化,成为一种有用的直接盖髓剂,用于高质量的修复性牙本质形成。

更新日期:2022-06-18
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