Oncogene:外泌体介导的lncRUNX2-AS1有助于成骨

2018-06-15 MedSci MedSci原创

多发性骨髓瘤(MM)的特征是间充质干细胞(MSCs)的成骨能力降低。癌细胞和癌症基质细胞之间的交流是肿瘤进展的主要因素。了解骨髓瘤-基质的相互作用对于开发可逆转骨疾病的有效策略至关重要。本研究中,我们发现骨髓瘤细胞中的生物活性lncRNA RUNX2-AS1可以包装到外泌体中并传递给MSCs,从而抑制MSCs的成骨。来自RUNX2反义链的RUNX2-AS1在源自MM患者(MM-MSC)的MSCs中

多发性骨髓瘤(MM)的特征是间充质干细胞(MSCs)的成骨能力降低。癌细胞和癌症基质细胞之间的交流是肿瘤进展的主要因素。了解骨髓瘤-基质的相互作用对于开发可逆转骨疾病的有效策略至关重要。

本研究中,我们发现骨髓瘤细胞中的生物活性lncRNA RUNX2-AS1可以包装到外泌体中并传递给MSCs,从而抑制MSCs的成骨。来自RUNX2反义链的RUNX2-AS1在源自MM患者(MM-MSC)的MSCs中富集。RUNX2-AS1能够在重叠区域与RUNX2前体mRNA形成RNA双链体,并且该双链体通过降低剪接效率而转录地抑制RUNX2表达,从而导致MSCs的成骨潜能下降。小鼠模型中使用外泌体分泌抑制剂GW4869可有效预防由骨形成和抗代谢活性所制的骨丢失。因此,外泌体lncRNA RUNX2-AS1可能成为MM骨病变的潜在治疗靶点。

总之,该研究结果表明,外源性lncRUNX2-AS1通过特定的外泌体lncRUNX2-AS1/RUNX2通路在成骨分化中从MM细胞向MSCs转移中发挥关键作用。

原始出处:

Li B, Xu H, et al. Exosome-mediated transfer of lncRUNX2-AS1 from multiple myeloma cells to MSCs contributes to osteogenesis. Oncogene. 2018 Jun 12. doi: 10.1038/s41388-018-0359-0.

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    2019-03-27 heli0118
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    2018-07-16 stfoxst
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    2018-06-17 zhaojie88
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    2018-06-17 zsyan
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    2018-06-16 kafei

    学习了谢谢

    0

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    2018-06-15 1e1b8538m79(暂无匿称)

    不错的文章值得拥有哦

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