Department of Surgery, UT Southwestern Medical Center, Dallas, Texas, USA.
Antioxid Redox Signal. 2023 Jul;39(1-3):162-165. doi: 10.1089/ars.2023.0356. Epub 2023 Jul 10.
Over the past decade, extensive research has been dedicated to understanding oxidative cell death, specifically the transition from oxytosis to ferroptosis. Oxytosis was initially characterized in 1989 as a calcium-dependent form of nerve cell death induced by glutamate. It was associated with intracellular glutathione depletion and the inhibition of cystine uptake through system xc, a cystine-glutamate antiporter. In 2012, the term "ferroptosis" was coined during a compound screening that aimed to selectively induce cell death in -mutated cancer cells. This screening identified erastin and RSL3 as inhibitors of system xc and glutathione peroxidase 4 (GPX4), respectively, triggering oxidative cell death. Subsequently, the term oxytosis gradually fell out of frequent usage, being replaced by ferroptosis. This editorial provides a narrative review of the significant findings, experimental models, and molecular players involved in ferroptosis, shedding light on its intricate mechanisms. Moreover, it discusses the implications of these findings in various pathological conditions, including neurodegenerative disorders, cancer, and ischemia-reperfusion disease. By summarizing the decade-long progress made in this field, the present Forum serves as a valuable resource for researchers aiming to unravel the complex mechanisms underlying oxidative cell death and explore potential therapeutic interventions. 39, 162-165.
在过去的十年中,大量的研究致力于理解氧化细胞死亡,特别是从细胞凋亡到铁细胞死亡的转变。细胞凋亡最初于 1989 年被描述为谷氨酸诱导的钙依赖性神经细胞死亡形式。它与细胞内谷胱甘肽耗竭有关,并通过系统 xc 抑制胱氨酸摄取,系统 xc 是一种胱氨酸-谷氨酸反向转运体。2012 年,在一项旨在选择性诱导突变型癌症细胞死亡的化合物筛选中,提出了“铁细胞死亡”一词。该筛选鉴定出 erastin 和 RSL3 分别是系统 xc 和谷胱甘肽过氧化物酶 4 (GPX4) 的抑制剂,触发氧化细胞死亡。随后,细胞凋亡一词逐渐不再常用,被铁细胞死亡所取代。本社论对铁细胞死亡的重要发现、实验模型和分子参与者进行了叙述性综述,揭示了其复杂的机制。此外,还讨论了这些发现在各种病理条件下的意义,包括神经退行性疾病、癌症和缺血再灌注疾病。通过总结该领域十年来的进展,本论坛为研究人员提供了有价值的资源,旨在揭示氧化细胞死亡的复杂机制,并探索潜在的治疗干预措施。39, 162-165.