低强度脉冲超声波可以减少运动神经元细胞中氧化和内质网膜应激
Thi-Thuyet Truong1, Chih-Chung Huang2, Wen-Tai Chiu2
1Department of Biomedical Engineering, National Cheng Kung University, Tainan 701401, Taiwan.
Ultrasonics
|October 28, 2024
概括
低强度脉冲超声波 (LIPUS) 保护运动神经元免受氧化和内质网膜 (ER) 压力. 这种安全的非侵入性方法通过调节关键蛋白质和信号通路来促进细胞生存,为神经科学研究提供了潜力.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 生物医学工程 生物医学工程
背景情况:
- 细胞内膜网膜 (ER) 应激和氧化应激与神经退行性疾病有关.
- 了解对神经退行症的保护机制对于开发治疗策略至关重要.
研究的目的:
- 研究低强度脉冲超声波 (LIPUS) 对运动神经元中氧化/ER压力诱导的神经退行症的影响.
- 探索LIPUS神经保护背后的分子机制.
主要方法:
- 使用NSC-34运动神经元细胞系.
- 应用低强度脉冲超声波 (LIPUS) 刺激 (1.15 MHz,357 mW/cm2,8 分钟).
- 评估了蛋白质表达 (BCL-2,BAX,CHOP,caspase-12,AKT),Ca2+信号传递和转录因子激活 (NFAT,NF-κB).
主要成果:
- 利普斯增加了抗芽细胞BCL-2和抑制了芽细胞蛋白 (BAX,CHOP,caspase-12),提高了运动神经元的存活率.
- LIPUS调节了Ca2+信号,激活了NFAT和NF-κB转录因子.
- 利普斯诱导AKT激活,防止氧化/ER压力诱导的线粒体功能障碍.
结论:
- 利普斯在运动神经元中表现出对氧化/ER压力的神经保护作用.
- 利普斯调节关键的亡和生存途径,包括Ca2+信号和AKT激活.
- 利普斯是一种安全的,非侵入性的工具,在神经科学研究中具有超声神经调节的潜力.
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