极低频的电磁场通过斑马鱼尺度中的Wnt/β-catenin信号传递促进骨质细胞和骨质细胞活动
Jingjing Kobayashi-Sun1,2, Isao Kobayashi2, Makoto Kashima3
1Department of Clinical Engineering, Faculty of Health Science, Komatsu University, Komatsu, Ishikawa, Japan.
Frontiers in cell and developmental biology
|February 22, 2024
概括
极低频电磁场 (ELF-EMF) 在10毫升时通过增加骨细胞促进骨折愈合. 这种效应是由Wnt/β-catenin信号通路介导的,这表明ELF-EMF是治疗骨疾病的潜在疗法.
科学领域:
- 生物医学工程 生物医学工程
- 再生医学是一种再生医学.
- 骨生物学 骨生物学 骨生物学
背景情况:
- 电磁场 (EMF) 正在探索用于骨疾病治疗的方法.
- 不同的电磁场频率使得理解它们对骨组织的影响变得复杂.
- 斑马鱼的片为骨折愈合研究提供了一个新的体内模型.
研究的目的:
- 用斑马鱼规模模型研究极低频率电磁场 (ELF-EMF) 对骨折愈合的影响.
- 阐明潜在的分子机制,特别是Wnt/β-catenin信号传递的作用.
主要方法:
- 开发了一种体内斑马鱼尺度骨折模型.
- 暴露在60赫兹ELF-EMF的不同强度 (3,10,30mT) 的破裂.
- 分析了骨质细胞和骨质细胞的数量,基因表达 (wnt10b,Wnt目标) 和β-catenin局部.
- 使用Wnt/β-catenin信号抑制剂 (IWR-1-endo) 来确认途径的参与.
主要成果:
- 10mT的ELF-EMF显著增加了骨质细胞和骨质细胞在破裂中的数量;3或30mT没有.
- 基因表达分析显示,在10mTELF-EMF暴露后,wnt10b和Wnt目标基因的调节.
- 骨折部位的β-catenin表达被ELF-EMFs增强.
- 抑制Wnt/β-catenin信号消除了ELF-EMF诱导的骨细胞增加.
结论:
- 10mT的ELF-EMF通过刺激骨质母细胞和骨质母细胞活动来促进骨折愈合.
- 该机制涉及Wnt/β-catenin信号通路的激活.
- 这些发现为商用ELF-EMF在骨愈合中的治疗潜力提供了体内证据.
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