Biosci Rep:研究揭示RNA DANCR在人滑膜间充质干细胞软骨形成分化的机制

2017-09-24 MedSci MedSci原创

研究已经发现miRNA可通过调节多种信号通路来调节细胞分化。长链非编码RNA(lnc RNA)DANCR被认为是人类滑膜间充质干细胞(SMSC)的软骨形成的关键,然而,其潜在的分子机制目前尚未清楚。本研究中个,研究人员发现,SMSCs中DANCR的miRNA表达谱过表达确定miR-1305明显下调,而miR-1305是DANCR的下游靶标。值得注意的是,miR-1305过表达逆转了DANCR诱导的

研究已经发现miRNA可通过调节多种信号通路来调节细胞分化。长链非编码RNA(lnc RNA)DANCR被认为是人类滑膜间充质干细胞(SMSC)的软骨形成的关键,然而,其潜在的分子机制目前尚未清楚。

本研究中个,研究人员发现,SMSCs中DANCR的miRNA表达谱过表达确定miR-1305明显下调,而miR-1305是DANCR的下游靶标。值得注意的是,miR-1305过表达逆转了DANCR诱导的SMSCs细胞增殖和软骨形成分化,表明miR-1305拮抗了DANCR的功能。


具体来说, miR-1305的高表达导致TGF-β通路成员Smad4的表达降低,抑制miR-1305则会升高Smad4的表达水平。Smad4的消耗抑制了DANCR在SMSCs细胞增殖和软骨形成中的促进作用。

总之,该研究结果表明miR-1305-Smad4轴作为lncRNA DANCR的主要下游单位,促进SMSCs中软骨的形成。

原始出处:

Lei Zhang, Xiangyi Sun, et al., Long noncoding RNA DANCR regulates miR-1305-Smad 4 axis to promote chondrogenic differentiation of human synovium-derived mesenchymal stem cells. Biosci Rep. 2017 Aug 31; 37(4): BSR20170347. Prepublished online 2017 Jul 3. Published online 2017 Jul 21. doi: 10.1042/BSR20170347

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    2018-08-03 sunylz
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    2017-09-25 llaq

    学习

    0

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    2017-09-25 明天会更好!

    谢谢分享.学习了!

    0

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    2017-09-24 明天会更好!

    谢谢分享.感觉收获很大!

    0

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