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首页> 外文期刊>Cell biology international. >Effects of FGF2 and TGFbeta(1) on the differentiation of human dental pulp stem cells in vitro.
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Effects of FGF2 and TGFbeta(1) on the differentiation of human dental pulp stem cells in vitro.

机译:FGF2和TGFbeta(1)对人牙髓干细胞体外分化的影响。

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摘要

Two crucial growth factors, FGF2 and TGFbeta(1), were investigated in this study to determine their inductive effects on the odontoblastic differentiation of human dental pulp stem cells (DPSCs) in vitro. DPSCs were isolated by immunomagnetic bead selection using the STRO-1 antibody, and then co-cultured respectively with FGF2, TGFbeta(1) and FGF2+TGFbeta(1). The results showed that FGF2 can exert a significant effect on the cell proliferation, while TGFbeta(1) or FGF2+TGFbeta(1) can initiate an odontoblast-like differentiation of DPSCs. Moreover, FGF2 can synergistically upregulate the effects of TGFbeta(1) on the odontoblastic differentiation of DPSCs, as indicated by the increased alkaline phosphatase activity, the polarized cell appearance and secretary ultrastructural features, the formation of mineralized nodules and the gene/protein expression of dentin sialoprotein and dentin matrix protein-1. Together, FGF2 acted primarily on the cell proliferation, while TGFbeta(1) and FGF2+TGFbeta(1) mainly stimulated the odontoblastic differentiation of DPSCs. This study provides interesting progress in the odontoblastic differentiation of DPSCs induced by FGF2 and TGFbeta(1).
机译:在这项研究中研究了两个关键的生长因子FGF2和TGFbeta(1),以确定它们对人牙髓干细胞(DPSCs)牙本质成骨细胞分化的诱导作用。通过使用STRO-1抗体通过免疫磁珠选择分离DPSC,然后分别与FGF2,TGFbeta(1)和FGF2 + TGFbeta(1)共培养。结果表明,FGF2可以对细胞增殖产生显着影响,而TGFbeta(1)或FGF2 + TGFbeta(1)可以启动DPSC的成牙本质细胞样分化。此外,FGF2可以协同上调TGFbeta(1)对DPSC的牙本质成骨分化的作用,如碱性磷酸酶活性增加,极化细胞外观和秘书超微结构特征,矿化结节的形成以及基因/蛋白质表达所表明的那样。牙本质唾液蛋白和牙本质基质蛋白-1。在一起,FGF2主要作用于细胞增殖,而TGFbeta(1)和FGF2 + TGFbeta(1)主要刺激DPSC的牙突分化。这项研究在FGF2和TGFbeta(1)诱导的DPSC的牙本质成骨分化中提供了有趣的进展。

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