在实验室中经过电穿孔后从电穿孔细胞中释放的金属副产品的旁观者效应
Alenka Maček Lebar1, Tjaša Potočnik1, Janez Ščančar2
1University of Ljubljana, Faculty of Electrical Engineering, Tržaška 25 1000 Ljubljana, Slovenia.
Bioelectrochemistry (Amsterdam, Netherlands)
|February 15, 2025
概括
电穿孔会从电极中释放金属离子,这可能会损害附近的细胞. 带有较长脉冲的不钢电极释放更多的金属离子,对非电孔细胞造成显著的毒性.
科学领域:
- 生物医学工程 生物医学工程
- 细胞生物学 细胞生物学
- 材料科学 材料科学 材料科学
背景情况:
- 电穿孔是一种广泛使用的方法,用于将物质引入细胞.
- 电极材料和脉冲参数可以影响金属离子的释放.
- 在电穿孔过程中释放的金属离子可以影响细胞过程.
研究的目的:
- 为了研究电解过程中从电极释放的金属离子对非电解细胞的影响.
- 为了评估由不同的电极材料和脉冲协议产生的金属副产品的毒性.
主要方法:
- 使用不同脉冲协议的或不钢电极对CHO和HCT116细胞进行电穿孔 (100微秒,5毫秒单极;2微秒双极).
- 电孔细胞在新鲜介质中化2或4小时,以允许副产品积累.
- 在介质中评估金属离子度.
- 对非电孔细胞的毒性影响的评估,包括细胞循环中断和细胞死亡.
主要成果:
- 使用5毫秒脉冲协议的不钢电极显著增加了介质中的铁,和离子度.
- 在化介质中存在的金属离子对非电化细胞具有毒性.
- 观察到的毒性影响包括细胞循环功能的破坏和诱导细胞死亡.
结论:
- 电极材料和脉冲参数在电穿孔过程中极大地影响金属离子释放.
- 介质中积累的金属离子对旁观细胞具有显著的毒性风险.
- 了解这些金属离子效应对于优化电穿孔协议和确保细胞生存能力至关重要.
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