循环RNAcirc-3626通过调节miR-338-3p/Runx2轴促进骨的形成
Gaoyang Chen1, Song Wang2, Ruihong Wei1
1Division of Hand, Foot and Microvascular Surgery, Department of Orthopedic Surgery, Shenzhen People's Hospital (the Second Clinical Medical College of Jinan University, the First Affiliated Hospital of Southern University of Science and Technology), 518020 Shenzhen, China; Key Laboratory of Musculoskeletal Tissue Reconstruction and Function Restoration (ZDSYS20200811143752005), Shenzhen Institute for Orthopedic Research, 518020 Shenzhen, China.
循环RNAcirc-3626通过增强骨髓 stromal 细胞 (BMSCs) 的骨质基因分化来促进骨的形成. 这一发现为老年骨质疏松症和与年龄有关的骨质损失提供了潜在的新疗法.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 老年学是一门学科.
背景情况:
- 骨质稳定性障碍会导致代谢性骨疾病,如老年骨质疏松症,其特征是与年龄相关的骨质损失.
- 骨髓 stromal 细胞 (BMSCs) 具有骨质生成能力,对于预防骨质损失至关重要,但在老年骨质疏松症中,它们的分化减少.
- 循环RNAs (circRNAs) 通过海绵式微RNAs (miRNAs) 调节BMSC骨质分化.
研究的目的:
- 为了识别新的骨质生成相关的circRNAs.
- 研究circRNAs在促进老年骨质疏松症骨形成中的作用.
- 探索circRNAs作为老年骨质疏松症的潜在治疗点.
主要方法:
- 在骨质分化过程中,RNA测序确定了BMSC中的失调的circRNAs.
- 定量PCR (qPCR),微型CT,素标记和三点曲试验评估了circ-3626在体内对骨的影响.
- 生物信息学,Luciferase测定,FISH,RNA拉下,西部斑点和阿利沙林红色染色阐明了分子机制.
主要成果:
- 鉴定出circ-3626是关键的骨质生成相关的circRNA.
- 过度表达circ-3626显著增强了老年小鼠的BMSC骨质生成能力和骨修复.
- Circ-3626通过海绵化miR-338-3p促进骨质分化,从而上调Runx2的表达.
结论:
- Circ-3626通过miR-338-3p/Runx2通路促进骨形成起着关键作用.
- Circ-3626代表了预防和治疗老年骨质疏松症骨损失的潜在治疗策略.
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