J Bone Miner Res:MiR-27a靶向DKK2和SFRP1以促进种植体周围炎骨缺损区的骨再生

2018-09-02 MedSci MedSci原创

种植体周围炎的炎症微环境中,植入物表面的有限的骨生成阻碍了使用当前临床疗法进行骨再整合。微小RNA(miRNA)可作为有效的分子管理器,可同时调节多种内源性过程,如炎症和成骨。 miRNA的递送可以提供某些疾病的有效治疗方法。在这项工作中,我们发现miR-27a在犬种植体周围炎模型的样本中差异性下调。我们发现,在体外,过表达miR-27a通过改善TNF-α对骨形成的抑制来正向调节成骨-血管生成偶联

种植体周围炎的炎症微环境中,植入物表面的有限的骨生成阻碍了使用当前临床疗法进行骨再整合。微小RNA(miRNA)可作为有效的分子管理器,可同时调节多种内源性过程,如炎症和成骨。 miRNA的递送可以提供某些疾病的有效治疗方法。在这项工作中,我们发现miR-27a在犬种植体周围炎模型的样本中差异性下调。

我们发现,在体外,过表达miR-27a通过改善TNF-α对骨形成的抑制来正向调节成骨-血管生成偶联。机制上,我们将Dickkopf2(DKK2)和分泌的卷曲相关蛋白(SFRP1)鉴定为成骨和血管生成的两个必需的直接miR-27a靶标。此外,我们构建了miR-27a增强的输送系统,以修复犬种植体周围炎模型中植入物周围的骨缺损。

综上所述,该研究结果表明,miR-27a处理组可以优化体内新骨形成和再合并。我们的分析证明该策略对种植体周围炎具有治疗效果,表明它是维持牙种植体稳定性和咀嚼功能的可行方法。

原始出处:

Wu X, Gu Q, et al., MiR-27a targets DKK2 and SFRP1 to promote reosseointegration in the regenerative treatment of peri-implantitis. J Bone Miner Res. 2018 Aug 27. doi: 10.1002/jbmr.3575.

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    2019-02-25 apoenzyme
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    2019-05-09 huangdf
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    2019-06-15 smallant2002
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    2018-09-04 lfcmxl
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    2018-09-04 lsj630