J Periodontol:成骨过程中牙周韧带细胞中循环RNA的表达

2017-08-30 MedSci MedSci原创

本研究旨在研究骨形成过程中牙周韧带干细胞(PDLSCs)中循环RNA(circRNA)的不同表达模式。

本研究旨在研究骨形成过程中牙周韧带干细胞(PDLSCs)中循环RNA(circRNA)的不同表达模式。

分离PDLSCs并在成骨培养基中培养。在第0天(D0),第3天(D3),第7天(D7)和第14天(D14),从细胞中提取总RNA,并进行RNA测序以检测circRNA,信使RNA(mRNA),和微小RNA(miRNA)。进行实时定量逆转录聚合酶链反应(qRT-PCR),以验证circRNAs和miRNAs的表达。进行差异表达分析和基因本体分析。构建了一个circRNA-miRNA-mRNA网络,揭示了circRNAs的潜在调控作用。

结果:共检测到12,693个circRNA转录物,并且circRNAs显示了阶段特异性表达。通过qRT-PCR验证了四种已知的circRNA的表达。总共有118个circRNA在D3差异表达,128个circRNA在D7差异表达,139个circRNAs在D14与D0差异表达。差异表达的circRNA的宿主基因富集在细胞质或膜结合的囊泡和细胞外基质中,表明它们在调节细胞外囊泡的生物发生中的潜在作用。此外,由circRNA潜在调节的mRNA在骨形成相关过程较丰富,包括细胞外基质组织,细胞分化和骨形态发生蛋白信号通路。

结论:在PDLSCs的成骨分化过程中,cycRNA的表达谱显着改变,为未来关于circRNAs在成骨细胞分化中的作用提供了线索。

原始出处:

Yunfei Zheng, Xiaobei Li, Yiping Huang,et al. The Circular RNA Landscape of Periodontal Ligament Stem Cells During Osteogenesis. Journal of Periodontology. 2017 September. doi: 10.1902/jop.2017.170078

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    2017-09-17 feather89
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    2017-09-01 zhaojie88
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    2017-08-31 189****1577

    值得推荐一下

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