Bai Qinqin, Liu Jiachen, Wang Gaiqing
Shanxi Medical University, Neurology, Taiyuan, China.
Xiangya Medical College of Central South University, Clinical Medicine, Changsha, China.
Front Cell Neurosci. 2020 Nov 16;14:591874. doi: 10.3389/fncel.2020.591874. eCollection 2020.
Ferroptosis is a term that describes one form of regulated non-apoptotic cell death. It is triggered by the iron-dependent accumulation of lipid peroxides. Emerging evidence suggests a link between ferroptosis and the pathophysiological processes of neurological disorders, including stroke, degenerative diseases, neurotrauma, and cancer. Hemorrhagic stroke, also known as intracerebral hemorrhage (ICH), belongs to a devastating illness for its high level in morbidity and mortality. Currently, there are few established treatments and limited knowledge about the mechanisms of post-ICH neuronal death. The secondary brain damage after ICH is mainly attributed to oxidative stress and hemoglobin lysate, including iron, which leads to irreversible damage to neurons. Therefore, ferroptosis is becoming a common trend in research of neuronal death after ICH. Accumulative data suggest that the inhibition of ferroptosis may effectively prevent neuronal ferroptosis, thereby reducing secondary brain damage after ICH in animal models. Ferroptosis has a close relationship with oxidative damage and iron metabolism. This review reveals the pathological pathways and regulation mechanism of ferroptosis following ICH and then offers potential intervention strategies to mitigate neuron death and dysfunction after ICH.
铁死亡是描述一种受调控的非凋亡性细胞死亡形式的术语。它由脂质过氧化物的铁依赖性积累引发。新出现的证据表明铁死亡与包括中风、退行性疾病、神经创伤和癌症在内的神经系统疾病的病理生理过程之间存在联系。出血性中风,也称为脑出血(ICH),因其高发病率和死亡率而属于一种毁灭性疾病。目前,针对脑出血后神经元死亡的机制,既定的治疗方法很少,相关知识也有限。脑出血后的继发性脑损伤主要归因于氧化应激和血红蛋白裂解产物,包括铁,这会导致神经元的不可逆损伤。因此,铁死亡正成为脑出血后神经元死亡研究的一个普遍趋势。累积数据表明,抑制铁死亡可能有效预防神经元铁死亡,从而减少动物模型中脑出血后的继发性脑损伤。铁死亡与氧化损伤和铁代谢密切相关。本综述揭示了脑出血后铁死亡的病理途径和调控机制,进而提供了减轻脑出血后神经元死亡和功能障碍的潜在干预策略。