骨细胞亡驱动骨质细胞生成和膜骨的吸收在正统牙的牙运动期间
Fumitoshi Ohori1, Hideki Kitaura2, Aseel Marahleh1,3
1Division of Orthodontics and Dentofacial Orthopedics, Graduate School of Dentistry, Tohoku University, 4- 1 Seiryo-machi, Aoba-ku, Sendai, 980-8575, Japan.
Scientific reports
|June 3, 2025
概括
瘤缩因子-α (TNF-α) 在正义牙移动 (OTM) 期间诱导骨细胞的亡. 这种调节的细胞死亡促进了骨质细胞的形成和压缩侧的骨再吸收.
科学领域:
- 细胞生物学 细胞生物学
- 骨生物学 骨生物学 骨生物学
- 免疫学 免疫学 免疫学
背景情况:
- ортодонтика牙移动 (OTM) 涉及由炎症性细胞因子调节的骨重塑,如瘤缩因子-α (TNF-α).
- 亡,一种由TNF-α诱导的编程细胞死亡形式,释放与炎症损伤相关的分子模式 (DAMPs).
- 在OTM期间骨质细胞亡在骨质细胞形成中的特定作用尚不清楚.
研究的目的:
- 调查骨质细胞亡在调节OTM期间骨质细胞形成中的作用.
- 确定TNF-α信号对OTM期间骨细胞死亡的影响.
- 探索死骨细胞骨质细胞对大气泡骨再吸收的贡献.
主要方法:
- 使用了OTM的鼠标模型.
- 使用传输电子显微镜检查骨细胞死亡和形态.
- 通过免疫光染色来评估亡标记物.
- 分析了骨质细胞生成,使用来自死骨细胞骨质细胞的条件介质.
主要成果:
- 在野生型小鼠中,在OTM后的第6天,骨细胞死亡显著增加.
- 缺乏TNF受体的小鼠 (TNFRsKO) 显示骨细胞死亡减少.
- 在野生型OTM小鼠的压缩侧的骨质细胞中检测到亡标记物.
- 来自死骨细胞的条件介质促进了骨质细胞形成.
结论:
- 由TNF-α诱导的骨质细胞亡会在OTM期间增强骨质细胞形成.
- 亡有助于通过DAMPs释放在压缩侧的膜骨再吸收.
- 向骨细胞亡可能为OTM相关的骨重塑提供治疗策略.
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