在复杂的磁场应用时发生的抗氧化分子事件中SOD-1/2的参与 在H2O2氧化应激诱导的内皮细胞模型中
Alessia Ricci1, Susi Zara1, Viviana di Giacomo1
1Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara, 66100 Chieti, Italy.
International journal of molecular sciences
|September 13, 2025
概括
复杂磁场 (CMF) 减少内皮细胞中有害的反应性氧物种 (ROS). 应用CMF的时间影响结果,促进细胞更新或抗氧化作用用于组织修复.
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
- 再生医学是一种再生医学.
背景情况:
- 内皮细胞对于组织修复至关重要.
- 用反应性氧物种 (ROS) 表示的氧化应激阻碍了组织的更新.
- 复杂磁场 (CMF) 显示出非侵入性组织再生的前景.
研究的目的:
- 研究CMFs在氧化应激下对内皮细胞的影响.
- 为了比较两个不同的CMF应用协议 (两个循环与T0+T24对比).
- 了解CMFs调节ROS和细胞反应的潜在机制.
主要方法:
- 内皮细胞暴露在过氧化 (H2O2) 中以诱导氧化应激.
- 用两个不同的CMF应用协议处理细胞:两个连续周期或两个周期间隔24小时 (T0+T24).
- 使用流式细胞计量来评估ROS产量,并测量蛋白质表达 (SODs,Akt/Nrf2) 和整体抗氧化活性.
主要成果:
- 两种CMF协议都减少了内皮细胞中ROS的产生.
- "双循环"协议调节了线粒体SOD-2,可能通过亲细胞亡蛋白增强细胞周转率.
- "T0+T24"协议上调了细胞质SOD-1,Akt/Nrf2和抗氧化活性,表明了抗氧化和抗炎反应.
结论:
- CMFs可以逆转ROS诱导的内皮细胞功能障碍.
- "双循环"CMF方法对于需要细胞更新的应用,如病理性伤口,可能是有益的.
- "T0+T24"CMF方法可能对需要抗氧化和抗炎作用的疾病有用,例如胀或肌肉损伤.
相关概念视频
Electron Transport Chain: Complex III and IV
9.1K
During the electron transport chain, electrons from NADH and FADH2 are first transferred to complexes I and II, respectively. These two complexes then transfer the electrons to ubiquinol, which carries them further to complex III. Complex III passes the electrons across the intermembrane space to Cyt c, which carries them further to complex IV. Complex IV donates electrons to oxygen and reduces it to water. As electrons pass through complexes I, III, and IV, the energy released aids the pumping...
9.1K
Electron Transport Chain: Complex I and II
18.5K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
18.5K


