铁死亡发生机制的研究进展

铁死亡(ferroptosis)是近几年发现的一种新的细胞死亡方式,是在小分子物质诱导下发生的氧化性细胞死亡,具有铁离子依赖性.其发生是细胞内脂质活性氧(reactive oxygen species,ROS)生成与降解的平衡失调所致.铁死亡诱导剂通过不同的通路直接或间接作用于谷胱甘肽过氧化物酶(glutathione peroxidase,GPXs),导致细胞抗氧化能力降低、ROS堆积、最终引起细胞氧化性死亡.铁死亡与帕金森综合征、胰腺癌等多种疾病相关,并发现可以通过激活或抑制铁死亡来干预疾病的发展,因此铁死亡成为近年来的研究热点.本文就铁死亡的发现、特点、发生机制及其与疾病的关系展开论述,将近年研究成果进行总结,期望为以铁死亡为基础的疾病治疗提供参考.

Research Progresss on Mechanism of Ferroptosis

Ferroptosis is a new form of cell death which is identified in recent years. It is an oxidative cell death induced by small molecules in certain circumstance, which is dependent on iron ion. Ferroptosis is caused by the imbalance of generation and degradation of intracellular reactive oxygen species(ROS). Ferroptosis inducer inhibits glutathione peroxidases(GPX) directly or indirectly through different pathway, resulting in the decrease of cellular antioxidant capacity and accumulation of ROS, which ultimately leads to ferroptosis. In this paper, we summarized the identification, characteristics and mechanism of ferroptosis. Besides, ferroptosis is involved in the development of many diseases, such as Parkinson disease, pancreatic cancer. And ferroptosis activated or inhibited can interfere with the progress of disease. Therefore, we believe that drugs based on ferroptosis will be used for treatment of disease in the future.