中国神经再生研究(英文版) ›› 2021, Vol. 16 ›› Issue (11): 2222-2224.doi: 10.4103/1673-5374.310679

• 观点:退行性病与再生 • 上一篇    下一篇

探索线粒体二硫键中继系统对帕金森病的贡献:PINK1 / CHCHD4相互作用

  

  • 出版日期:2021-11-15 发布日期:2021-04-13

Exploring the contribution of the mitochondrial disulfide relay system to Parkinson’s disease: the PINK1/CHCHD4 interplay

Giuseppe Arena, Nazanine Modjtahedi, Rejko Kruger#br#   

  1. Translational Neuroscience group, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg (Arena G, Kruger R)
    Université Paris-Saclay, Gustave Roussy Institute, CNRS, Metabolic and systemic aspects of oncogenesis for new therapeutic approaches, Villejuif, France (Modjtahedi N)
    Parkinson Research Clinic, Centre Hospitalier du Luxembourg (CHL), Esch-sur-Alzette, Luxembourg (Kruger R)
    Transversal Translational Medicine, Luxembourg Institute of Health (LIH), Esch-sur-Alzette, Luxembourg (Kruger R)
  • Online:2021-11-15 Published:2021-04-13
  • Contact: Giuseppe Arena, PhD, giuseppe.arena@uni.lu.
  • Supported by:
    This work was supported by grants from the Luxembourg National Research Fund (FNR) for the National Centre for Excellence in Research on Parkinson’s disease (NCER-PD to RK), the PEARL program (FNR/P13/6682797 to RK) and MiRisk‐PD (C17/BM/11676395 to RK and GA). RK has also received research grants from the Michael J Fox Foundation, the European Union’s Joint Program-Neurodegenerative Diseases (JPND; COURAGE-PD), the European Union’s Horizon2020 research and innovation program (No. 692320), and the Federal Ministry for Education and Research (BMBF; Mito-PD 031 A 430 A). NM was supported by the French National Cancer Institute (INCA2017-1-PLBIO-08) and by Fondation pour la recherche contre le cancer (ARC). 

摘要:

Neural Regen Res:刺激二硫键中继系统能否有效治疗帕金森病线粒体功能障碍?

帕金森病(PD)是老年人的常见运动障碍,由大脑黑质致密部中的多巴胺能神经元变性引起。环境因素和遗传因素均指出线粒体功能障碍是PD中神经变性的主要原因。使用线粒体毒素进行的开创性研究表明,它们在不同动物模型中具有触发多巴胺能细胞死亡和不可逆帕金森症的能力。在特发性PD病例的人脑中也观察到线粒体功能障碍的典型特征,表现出呼吸链复合物IIV活性的改变,mtDNA缺失的积累和氧化应激的增加。而且,发现以家族性PD形式突变的许多基因编码参与维持线粒体稳态和质量控制的蛋白质。

 

来自卢森堡大学的Giuseppe Arena团队发现PINK1基因编码线粒体丝氨酸/苏氨酸激酶,涉及关键的神经保护功能,包括线粒体吞噬、线粒体运输调节、线粒体/内质网串扰控制和钙稳态。研究还发现,氧化还原调节的CHCHD4 / GFER线粒体导入途径是PINK1稳定和线粒体自噬所必需的。CHCHD4蛋白是该机制的核心成分,可催化半胱氨酸残基氧化为二硫键。因此,CHCHD4依赖通路的损伤将对线粒体功能和神经元代谢产生深远影响,可能是PD神经退行性变的一种可能机制。Arena团队已在晚发型常染色体显性PD不同家族以及散发性PD患者中检测到CHCHD4 / Mia40底物CHCHD2 / MIX17ACHCHD10 / MIX17B的杂合突变。Arena等人认为未来研究应关注如何更好地表征健康线粒体线粒体膜间空间中的PINK1活性及其与凋亡诱导因子/CHCHD4机制的关系,以及刺激二硫键中继系统是否可以成为挽救PD线粒体功能障碍的一种有效策略。

 

文章在《中国神经再生研究(英文版)》杂志20211111期发表。

https://orcid.org/0000-0003-2398-5503 (Giuseppe Arena)

Abstract: Parkinson’s disease (PD) is a common movement disorder of the elderly caused by the degeneration of dopaminergic neurons in the substantia nigra pars compacta of the brain.