旋转的磁场模式导致瘤溶解由氧化应激在质瘤细胞
Shashank Hambarde1,2,3, Jeanne M Manalo1,2,3, David S Baskin1,2,3,4
1Kenneth R. Peak Center for Brain and Pituitary Tumor Treatment and Research, Houston Methodist Hospital, Houston, TX, USA.
Scientific reports
|November 7, 2023
概括
这项研究介绍了一种使用旋转振荡磁场 (sOMF) 的可穿戴设备,通过增加活性氧物种 (ROS) 来杀死癌细胞. 这些发现支持一种新的,非侵入性治疗脑瘤,如多形质母细胞瘤 (GBM).
科学领域:
- 在瘤学瘤学.
- 生物物理学的生物物理.
- 生物医学工程 生物医学工程
背景情况:
- 提高癌细胞中的活性氧物种 (ROS) 是诱导宏分子损伤和细胞死亡的关键策略.
- 已观察到电磁场 (EMF) 会增加细胞内ROS,导致癌细胞死亡.
研究的目的:
- 描述旋转振荡磁场 (sOMF) 的特定配置和时间,这些磁场在人类质瘤细胞中诱导细胞毒性.
- 研究sOMF影响癌细胞的机制,重点关注ROS的作用.
- 为了支持开发一种新的,非侵入性的基于器件的治疗质母细胞瘤 (GBM) 和其他质瘤.
主要方法:
- 研究了sOMF对两种类型的人类质瘤细胞的细胞毒性作用.
- 测量了sOMF刺激后超氧化物水平的上升.
- 利用抗氧化剂Trolox来评估ROS在sOMF诱导的细胞毒性中的作用.
主要成果:
- 确定了精确的sOMF刺激参数,这些参数通过超氧化物的增加在质瘤细胞中引起细胞毒性.
- 证明Trolox的使用逆转了sOMF的细胞毒性作用,证实了ROS的因果作用.
- 展示了在体外选择性杀死癌细胞和体内瘤缩.
结论:
- sOMF刺激有效地向并杀死结质瘤细胞,通过诱导ROS的临界升高.
- 这些发现阐明了将磁刺激与抗癌效应联系起来的物理原理和生物机制.
- 这项研究为一种新的,安全的,非侵入性的基于设备的治疗方法铺平了道路,用于GBM和其他质瘤.
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