中国神经再生研究(英文版) ›› 2026, Vol. 21 ›› Issue (4): 1652-1664.doi: 10.4103/NRR.NRR-D-24-00674

• 原著:视神经损伤修复保护与再生 • 上一篇    

VDAC1寡聚化通过加剧视网膜缺血再灌注损伤中线粒体氧化应激促进泛凋亡

  

  • 出版日期:2026-04-15 发布日期:2025-07-28

Voltage-dependent anion channel 1 oligomerization regulates PANoptosis in retinal ischemia–reperfusion injury

Hao Wan1 , Xiaoxia Ban1 , Ye He1 , Yandi Yang1 , Ximin Hu1 , Lei Shang2 , Xinxing Wan3 , Qi Zhang1, 4, 5, *, Kun Xiong1, 5, 6, *   

  1. 1 Department of Human Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan Province, China;  2 Jiangxi Research Institute of Ophthalmology and Visual Sciences, Affiliated Eye Hospital of Nanchang University, Nanchang, Jiangxi Province, China;  3 Department of Endocrinology, Third Xiangya Hospital, Central South University, Changsha, Hunan Province, China;  4 Department of Ophthalmology, Stanford University School of Medicine, Palo Alto, CA, USA;  5 Key Laboratory of Emergency and Trauma of Ministry of Education, College of Emergency and Trauma, Hainan Medical University, Haikou, Hainan Province, China;  6 Hunan Key Laboratory of Ophthalmology, Changsha, Hunan Province, China
  • Online:2026-04-15 Published:2025-07-28
  • Contact: Kun Xiong, MD, PhD, xiongkun2001@163.com; Qi Zhang, PhD, zhangqi2014@csu.edu.cn.
  • Supported by:
    This study was supported by the National Natural Science Foundation of China, Nos. 82172196 (to KX), 82372507 (to KX); the Natural Science Foundation of Hunan Province, China, No. 2023JJ40804 (to QZ); and the Key Laboratory of Emergency and Trauma (Hainan Medical University) of the Ministry of Education, China, No. KLET-202210 (to QZ).

摘要:

缺血再灌注损伤是视网膜变性常见的病理生理机制。泛凋亡是一种新定义的调节性细胞死亡的整体形式,其结合了焦亡、凋亡和坏死的关键特征。线粒体电压依赖性阴离子通道1(VDAC1)的寡聚化是调节视网膜缺血再灌注损伤中调节性细胞死亡的重要病理事件。然而,其在泛凋亡中的作用仍不明确。此次实验通过体内外视网膜缺血再灌注损伤模型发现,VDAC1寡聚体介导的线粒体功能障碍与视网膜缺血再灌注损伤中泛凋亡有关。抑制VDAC1寡聚化可抑制缺血再灌注损伤视网膜细胞中的线粒体功能障碍和泛凋亡。线粒体活性氧可通过促进泛凋亡小体组装,在VDAC1介导的泛凋亡中起着核心作用。此外,在缺血再灌注损伤大鼠视网膜中,也验证了抑制VDAC1寡聚化对泛凋亡的保护作用。总之,研究结果揭示了VDAC1寡聚化在调节视网膜缺血再灌注损伤泛凋亡中的重要作用,也突出了VDAC1作为有前景的治疗靶点。

https://orcid.org/0000-0002-3103-6028 (Kun Xiong); https://orcid.org/0000-0001-6300-6491 (Qi Zhang); 

https://orcid.org/0000-0002-2573-6722 (Hao Wan)

关键词: 泛凋亡, 焦亡, 凋亡, 坏死, VDAC1, 线粒体功能障碍, 线粒体膜通透性转换孔, 活性氧, 氧化应激, 缺血再灌注损伤

Abstract: Ischemia–reperfusion injury is a common pathophysiological mechanism in retinal degeneration. PANoptosis is a newly defined integral form of regulated cell death that combines the key features of pyroptosis, apoptosis, and necroptosis. Oligomerization of mitochondrial voltage-dependent anion channel 1 is an important pathological event in regulating cell death in retinal ischemia–reperfusion injury. However, its role in PANoptosis remains largely unknown. In this study, we demonstrated that voltage-dependent anion channel 1 oligomerization-mediated mitochondrial dysfunction was associated with PANoptosis in retinal ischemia–reperfusion injury. Inhibition of voltage-dependent anion channel 1 oligomerization suppressed mitochondrial dysfunction and PANoptosis in retinal cells subjected to ischemia–reperfusion injury. Mechanistically, mitochondria-derived reactive oxygen species played a central role in the voltagedependent anion channel 1-mediated regulation of PANoptosis by promoting PANoptosome assembly. Moreover, inhibiting voltage-dependent anion channel 1 oligomerization protected against PANoptosis in the retinas of rats subjected to ischemia–reperfusion injury. Overall, our findings reveal the critical role of voltage-dependent anion channel 1 oligomerization in regulating PANoptosis in retinal ischemia–reperfusion injury, highlighting voltage-dependent anion channel 1 as a promising therapeutic target.

Key words: 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine, apoptosis, ischemia–reperfusion injury, mitochondrial dysfunction, necroptosis, oxidative stress, PANoptosis, pyroptosis, reactive oxygen species, voltage-dependent anion channel 1