The role of cell surface markers and enamel matrix derivatives on human periodontal ligament mesenchymal progenitor responses in vitro.

The role of cell surface markers and enamel matrix derivatives on human periodontal ligament mesenchymal progenitor responses in vitro.
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DOI:
10.1016/j.biomaterials.2011.06.043
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发表时间:
2011-10
期刊:
影响因子:
14
通讯作者:
Brunel G
Brunel G
中科院分区:
工程技术1区
文献类型:
--
作者:
Kémoun P;Gronthos S;Snead ML;Rue J;Courtois B;Vaysse F;Salles JP;Brunel G

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牙周炎是人类牙周组织的慢性感染性疾病,其特征在于牙齿周围的支持组织如牙周膜(PDL)、牙骨质和牙槽骨的丧失。牙周组织的再生依赖于牙周膜中的间充质干/基质细胞(MSC)的参与。牙釉质基质衍生物(EMD)是一种来自未成熟猪牙釉质的提取物,富含釉原蛋白,但也含有骨形态发生蛋白(BMP),用于治疗牙周缺损。EMD对PDL的MSC细胞的影响还没有得到很好的表征。在这项体外研究中,我们鉴定了来自多个个体的PDL祖细胞,并证明EMD刺激它们。我们发现,EMD对细胞增殖和迁移的影响是通过它所包含的釉原蛋白介导的,而这些祖细胞分化为矿化组织的细胞类型主要是由于BMP信号。
Periodontitis is a chronic-, infectious-disease of the human periodontium that is characterized by the loss of supporting tissues surrounding the tooth such as the periodontal ligament (PDL), cementum and alveolar bone. Regeneration of the periodontium is dependent on the participation of mesenchymal stem/stromal cells (MSC) resident in the PDL. Enamel matrix derivative (EMD), an extract from immature porcine enamel rich in amelogenin protein but that also contain bone morphogenetic protein (BMP), is used to treat periodontal defects. The effects of EMD on MSC cells of the PDL are not well characterized. In this in vitro study, we identify PDL progenitor cells from multiple individuals and demonstrate that EMD stimulates them. We show that the effect of EMD on cell proliferation and migration is mediated through the amelogenin it contains, while the differentiation of these progenitor cells to cell types of mineralized tissue is mainly due to BMP signaling.
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