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骨中受雌激素调节的miRs增强骨质母细胞分化和矩阵矿化

Michael J Emch¹, Zofia Wicik^2,3, Kirsten G M Aspros¹

¹Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA.

Molecular therapy. Nucleic acids

|June 26, 2023

概括

这项研究揭示了在雌激素下降和更换期间皮层和椎骨中的明显分子变化. 特定的microRNAs (miRs) 显示了治疗骨质疏松症的治疗潜力,没有激素治疗的副作用.

科学领域:

骨生物学骨生物学骨生物学
内分泌学在内分泌学.
基因组学就是基因组学.

背景情况:

雌激素对骨健康至关重要,其下降导致绝经后的骨质疏松症.
皮层和椎骨对荷尔蒙线索的反应不同.
作为对荷尔蒙变化的反应,骨区之间的转录组差异仍然没有被评估.

研究的目的:

为了研究在雌激素耗尽和替换后皮层和椎骨区的转录组差异.
为了识别参与雌激素介导的骨变化中的微RNA (miRs).
探索骨质疏松症的新型治疗点.

主要方法:

使用了绝经后骨质疏松症 (卵巢切除术,OVX) 和雌激素替代疗法 (ERT) 的小鼠模型.
在皮层和椎骨上进行mRNA和microRNA (miR) 测序.
在体外分析了miR对骨质母细胞分化和矿物化的影响.

主要成果:

在OVX和ERT模型中,在皮层和脊椎骨之间观察到明显的转录形状.
七个miR被确定为雌激素驱动的mRNA表达变化的潜在调解者.
四个优先考虑的miRs影响了骨质母细胞分化标志物和矿化能力.

结论:

雌激素的耗尽和替代会在不同的骨中引起独特的转录基因变化.
特定的miRs显示为治疗雌激素缺乏症骨损失的治疗药物具有前途.
候选miRs和miR模仿剂为骨质疏松症的激素替代疗法提供了一个潜在的替代方案.

关键词:

MT: 非编码RNAs 的存在.骨头骨头骨头骨头雌激素雌激素雌激素是一种雌激素受体的受体是雌激素受体.基因表达分析基因表达分析 mRNAs 是一个mRNAs.这就是miRNAs.这里是鼠标鼠标鼠标鼠标鼠标鼠标.骨质疏松症是一种骨质疏松症.骨质疏松症是一种骨质疏松症.

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