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Updated: Jan 15, 2026

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甲基转移酶样14介导FOXP1 m6A修饰通过调节Wnt/β-catenin通路来缓解骨质疏松症
1Department of Orthopaedics, Xi'an Children's Hospital Affiliated to Xi'an Jiaotong University, 69 Xijuyuan Lane, Lianhu District, Xi'an, 710003, China.
Journal of molecular histology
|October 14, 2025
概括
叉头盒p1 (FOXP1) 促进骨髓介质干细胞 (BMSC) 的骨质分化. 通过m6A修饰进行METTL14介导的FOXP1稳定,可缓解小鼠骨质疏松症.
科学领域:
- 生物化学 生化学
- 干细胞生物学 干细胞生物学
- 分子医学是分子医学.
背景情况:
- 骨髓介质干细胞 (BMSCs) 的骨质分化受损是骨质疏松症 (OP) 发病的一个关键因素.
- 在OP期间BMSC骨质生成差异化中的Forkheadbox p1 (FOXP1) 的确切作用需要阐明.
研究的目的:
- 调查FOXP1在BMSC骨质分化中的作用及其在骨质疏松症中的潜在机制.
- 探索针对FOXP1治疗骨质疏松症的治疗潜力.
主要方法:
- 在骨质基质基质中培养BMSC以诱导分化.
- 分析了FOXP1表达及其对骨质分化的影响,通过过度表达和敲击.
- 使用METTL14,YTHDF1和YTHDF3.3来评估信使RNA (mRNA) 的甲基化.
- 研究了Wnt/β-catenin信号通路.
- 在体内研究中使用了被卵巢切除 (OVX) 的小鼠,接受了FOXP1-过度表达的lentivirus.
主要成果:
- 在BMSC骨质基因分化过程中,FOXP1表达被上调.
- 过度表达FOXP1增强了骨质分化,而FOXP1倒置则抑制了它.
- 通过METTL14介导的FOXP1mRNA的m6A甲基化,通过YTHDF1/YTHDF3增强其稳定性.
- 由METTL14诱导的骨质分化取决于FOXP1.1.
- FOXP1激活了Wnt/β-catenin通路,促进了骨质生成.
- 在OVX小鼠中,FOXP1过度表达减弱了骨质疏松症的进展.
结论:
- 依赖METTL14的m6A修饰和YTHDF1/YTHDF3介导的FOXP1稳定性促进了BMSC骨质生成.
- 对Wnt/β-catenin通路的FOXP1激活对其骨质生效至关重要.
- FOXP1代表了绝经后骨质疏松症的潜在治疗标.
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