J Endod:牙髓来源的间充质干细胞特性与培养条件的影响

2017-08-12 MedSci MedSci原创

牙髓间充质干细胞(DPMSCs)高表达间充质干细胞标记物,并且具有分化为神经细胞、成骨细胞、脂肪细胞和成软骨细胞的潜能。因此,DPMSCs被认为适合应用于组织再生。集落分离法通常被用来相对大量收集异种DPMSCs。而同源DPMSCs可以利用抗间充质干细胞标记物抗体通过荧光活化细胞分选系统进行分离,虽然此种方法分离的细胞产率很低。DPMSCs的数量和质量对再生疗法均十分重要,并且细胞培养方法还有待于

牙髓间充质干细胞(DPMSCs)高表达间充质干细胞标记物,并且具有分化为神经细胞、成骨细胞、脂肪细胞和成软骨细胞的潜能。因此,DPMSCs被认为适合应用于组织再生。集落分离法通常被用来相对大量收集异种DPMSCs。而同源DPMSCs可以利用抗间充质干细胞标记物抗体通过荧光活化细胞分选系统进行分离,虽然此种方法分离的细胞产率很低。DPMSCs的数量和质量对再生疗法均十分重要,并且细胞培养方法还有待于进一步提高。因此,这篇研究的目的是通过不同方法培养DPMSCs,并检测DPMSCs的特性。

研究将DPMSCs置于3维球形培养系统,类似于促使胚胎干细胞分化的悬滴培养环境。结果显示,3维球形培养系统促进了成牙本质/成骨分化标记物的表达和矿化结节的形成。结果表明,3维球形培养系统可能适合诱导DPMSCs形成硬组织。由于细胞培养密度会影响干细胞特性,因此研究者进一步检测了细胞培养密度对DPMSCs特性的影响。与稀疏条件相比,以细胞融合时的密度培养DPMSCs会轻微降低一些间充质干细胞标记物的表达。而融合培养会增强DPMSCs分化为形成硬组织细胞的能力,表明融合培养可能不适合维持DPMSCs的干性。

结论:当DPMSCs将被用来硬组织再生时,细胞稀疏培养至密集的培养条件可能是一种更好的替换策略。

原始出处

Kawashima N, Noda S, et al. Properties of Dental Pulp-derived Mesenchymal Stem Cells and the Effects of Culture Conditions. J Endod. 2017 Aug 3. pii: S0099-2399(17)30756-2. doi: 10.1016/j.joen.2017.06.004.

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    学习谢谢分享

    0

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    2017-08-13 刘煜

    学习了谢谢分享

    0

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    2017-08-13 忠诚向上

    好好学习一下

    0

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    2017-08-13 189****1577

    值得推荐一下

    0

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    2017-08-13 明月清辉

    谢谢分享,学习了

    0

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    2017-08-12 131****2916

    不错的文章值得学习

    0

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    2017-08-12 1e1b8538m79(暂无匿称)

    不错的文章,值得一读

    0

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