核因素红色素2相关因子2 (Nrf2) 在重金属引起的氧化应激中发出信号
Swapnil Tripathi1,2, Gitika Kharkwal1, Rajeev Mishra3
1Toxicology Department, ICMR-National Institute of Occupational Health, Ahmedabad-380016, India.
Heliyon
|September 23, 2024
概括
核因子红色素2相关因子2 (Nrf2) 途径可以抵御环境中毒物引起的氧化应激. 然而,这个系统可以悖论地促进金属诱导的致癌症与长时间的有毒元素暴露.
科学领域:
- 环境毒理学环境毒理学
- 分子生物学分子生物学
- 细胞防御机制 细胞防御机制
背景情况:
- 生物体面临来自新陈代谢和环境毒素的氧化应激,如反应性氧和物种 (ROS,RNS).
- 核因子红色素2相关因子2 (Nrf2) 和凯尔赫类ECH相关蛋白1 (Keap1) 途径是对氧化应激的关键内在防御系统.
- 人类暴露于有毒金属化物 (如) 和金属 (如,,,,,,) 的增加与各种健康问题有关.
研究的目的:
- 审查Nrf2-Keap1信号传递的抗氧化防御机制.
- 探索Nrf2信号在对有毒元素的反应中的双重作用.
- 阐明Nrf2信号与有毒元素暴露之间的相互关系.
主要方法:
- 关于Nrf2-Keap1信号传递的研究文献综述.
- 对金属化物和金属诱导的氧化应激研究的分析.
- 检查Nrf2在保护和促进毒性的作用.
主要成果:
- Nrf2信号传递对于维持细胞抗氧化剂平衡至关重要.
- 金属和金属化物可以诱导ROS,触发Nrf2-Keap1通路.
- Nrf2 作为对金属毒性的防御作用,但也可以在长期暴露下促进致癌.
结论:
- Nrf2-Keap1通路是细胞对有毒元素诱导的氧化应激的重要防御.
- 了解Nrf2的双重作用对于评估与环境毒素暴露相关的健康风险至关重要.
- 需要进一步的研究才能充分理解Nrf2在与有毒元素有关的疾病中的复杂参与.
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