Cell Death Dis:环状RNA或可作为治疗骨折不愈合的靶点

2020-01-10 QQY MedSci原创

骨组织具有很强的自我修复能力。在治疗得当的情况下,大多数的骨折都能够很好的痊愈。但也有一些骨折很难愈合,而这些没有愈合的骨折被称为骨折不愈合(nonunion)。大约有5%的骨折患者难以康复。由于骨折部位的持续移动,骨不愈合通常伴有疼痛,这将大大降低患者的生活质量。骨髓间充质干细胞(BMSCs)在骨折不愈合过程中起着重要作用。而环状RNA(circRNA)作为一种独特的非编码RNA,是RNA领域研

骨组织具有很强的自我修复能力。在治疗得当的情况下,大多数的骨折都能够很好的痊愈。但也有一些骨折很难愈合,而这些没有愈合的骨折被称为骨折不愈合(nonunion)。

大约有5%的骨折患者难以康复。由于骨折部位的持续移动,骨不愈合通常伴有疼痛,这将大大降低患者的生活质量。骨髓间充质干细胞(BMSCs)在骨折不愈合过程中起着重要作用。而环状RNA(circRNA)作为一种独特的非编码RNA,是RNA领域研究中的新热点。目前,尚无研究报道circRNA在骨折不愈合过程中所起的作用。

研究人员从骨折不愈合患者中分离出BMSCs,使用circRNA微阵列技术检测circRNA在这些细胞中的表达。碱性磷酸酶和茜素红染色等一系列实验用来检测hsa_circ_0074834对BMSCs成骨分化的调控作用及分子机制。

实验结果表明,骨折不愈合患者的骨髓间充质干细胞中hsa_circ_0074834的表达水平降低。 Hsa_circ_0074834可以充当microRNA-942-5p的内源竞争性RNA(ceRNA),进而调节ZEB1和VEGF的表达。 Hsa_circ_0074834可促进BMSC细胞的成骨分化及骨缺损的修复。

本研究结果表明circRNAs可能是治疗骨折不愈合的关键靶点。

原始出处:

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    2020-04-13 cmj8wellington
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    2020-04-10 一叶知秋
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    2020-01-12 cy0328

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