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超声波对纤维细胞增殖的影响: I型原蛋白表达
Zeinab Hormozi Moghaddam1, Manijhe Mokhtari-Dizaji1, Mohammad Ali Nilforoshzadeh2
1Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Journal of biomedical physics & engineering
|June 13, 2025
概括
低频超声波,特别是0.20机械指数 (MI) 的超声波,增强纤维细胞增殖和I型原蛋白表达. 这表明超声波.
科学领域:
- 生物医学工程 生物医学工程
- 声学 声学 在声学方面
- 细胞生物学 细胞生物学
背景情况:
- 超声波被认为是一种非侵入性,安全的机械刺激.
- 超声波的生物效应背后的精确机制在很大程度上是未知的.
研究的目的:
- 为了研究由机械指数 (MI) 调节的声波化对纤维细胞增殖的影响.
- 评估MI对原I基因表达的影响,这是皮肤修复的关键因素.
主要方法:
- 解决了超声波压力方程,以确定各种频率 (150kHz,40kHz,28kHz) 和低强度 (<0.5W/cm2) 的最大机械指数.
- 暴露纤维细胞模拟声学参数,MI组为0.10,0.20和0.40.
- 使用MTT测定和5天后的原I表达量化纤维细胞增殖.
主要成果:
- 与对照组相比,0.20的机械指数显著增加了纤维细胞增殖 (分别在连续和脉冲模式下高出1.70±0.05和1.07±0.04倍)
- 0.40 MI 组在脉冲模式下显示减少的增殖 (P<0.05).
- 与对照组 (0.03±0.00) 相比,0.20 MI 组 (0.17±0.05) 的 I 原表达显著更高.
结论:
- 低频和低强度超声波,在化值 (机械指数) 上运行,促进纤维细胞的增殖.
- 在0.20 MI的超声波刺激增强了I型原体的表达,这表明皮肤修复应用的潜力.
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