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基因芯片筛选人牙周膜干细胞成骨分化生物学标记物的研究 被引量:5

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摘要 目的发现牙周膜干细胞(PDLSCs)骨向分化后显著高表达的环状RNA(circRNA),探索circRNA在PDLSCs骨向分化中生物学标记物的作用。方法用酶消化法体外培养牙周膜细胞,通过免疫磁珠法分选出PDLSCs。用普通培养基和成骨诱导培养基分别培养PDLSCs 21 d,茜素红染色检测矿化结节的形成,RT-q PCR检测碱性磷酸酶(ALP)、骨钙素(OCN)和Runt相关转录因子2(Runx2)的表达。采用Arraystar公司的circRNA芯片检测PDLSCs骨向分化前后整体circRNAs的差异表达,将芯片中上调变化最显著的前10位circRNAs进行PCR引物设计,RT-q PCR检测circRNA的表达情况。结果 PDLSCs骨向诱导21 d后,茜素红染色阳性,有大量矿化结节形成,ALP、OCN和Runx2表达量明显升高。Hsa_circ_0008433在PDLSCs骨向诱导21 d后显著高表达。结论Hsa_circ_0008433将来可能是PDLSCs骨向分化新的生物学标记物。
出处 《广东医学》 CAS 北大核心 2016年第14期2080-2083,共4页 Guangdong Medical Journal
基金 2013年度广东省科技计划(第二批)项目[编号:(2014)807-61]
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参考文献16

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