脂滴代谢调控铁死亡的研究进展
Research progress on the regulation of ferroptosis by lipid droplet metabolism
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摘要: 作为一种新型铁依赖性细胞死亡方式, 铁死亡特定过程就是含有多不饱和脂肪酸(polyunsaturated fatty acid, PUFA) 的磷脂在胞膜上过度积累发生过氧化。脂滴时刻处于生成和分解的动态转换, 在调节脂质代谢中起着核心作用, 并时刻处于生成和分解的动态转换。脂滴代谢与铁死亡的发生密切相关, 在铁死亡异常导致疾病中发挥重要作用。本综述首先着重介绍脂滴代谢过程及其对PUFA存储和释放的影响, 并进一步阐明脂滴代谢对铁死亡调控机制及关键调节蛋白, 以期揭示脂滴与铁死亡间的内在联系, 为铁死亡相关疾病的临床治疗提供新思路。Abstract: As a novel iron-dependent form of cell death, ferroptosis is characterized by the excessive accumulation of phospholipids containing polyunsaturated fatty acids (PUFA) on the cell membrane and peroxidation. Lipid droplets are always in the dynamic transition of generation and decomposition, play a central role in regulating lipid metabolism, and are always in the dynamic transition of generation and decomposition. Lipid droplet metabolism is closely related to the occurrence of ferroptosis and plays an important role in the disease caused by ferroptosis. This review firstly focuses on the lipid droplet metabolism process and its effects on the storage and release of PUFA, and further elucidates the regulatory mechanism and key regulatory proteins of lipid drop metabolism on ferroptosis, in order to reveal the intrinsic relationship between lipid droplets and ferroptosis, and provide a new strategy for disease prevention and treatment.
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