Wong Kan Yin, Roy Jaydeep, Fung Man Lung, Heng Boon Chin, Zhang Chengfei, Lim Lee Wei
1School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
2Peking University School of Stomatology, Beijing, China.
Aging Dis. 2020 Oct 1;11(5):1291-1316. doi: 10.14336/AD.2019.1125. eCollection 2020 Oct.
Besides extracellular deposition of amyloid beta and formation of phosphorylated tau in the brains of patients with Alzheimer's disease (AD), the pathogenesis of AD is also thought to involve mitochondrial dysfunctions and altered neurotransmission systems. However, none of these components can describe the diverse cognitive, behavioural, and psychiatric symptoms of AD without the pathologies interacting with one another. The purpose of this review is to understand the relationships between mitochondrial and neurotransmission dysfunctions in terms of (1) how mitochondrial alterations affect cholinergic and monoaminergic systems via disruption of energy metabolism, oxidative stress, and apoptosis; and (2) how different neurotransmission systems drive mitochondrial dysfunction via increasing amyloid beta internalisation, oxidative stress, disruption of mitochondrial permeabilisation, and mitochondrial trafficking. All these interactions are separately discussed in terms of neurotransmission systems. The association of mitochondrial dysfunctions with alterations in dopamine, norepinephrine, and histamine is the prospective goal in this research field. By unfolding the complex interactions surrounding mitochondrial dysfunction in AD, we can better develop potential treatments to delay, prevent, or cure this devastating disease.
除了阿尔茨海默病(AD)患者大脑中β淀粉样蛋白的细胞外沉积和磷酸化tau蛋白的形成外,AD的发病机制还被认为涉及线粒体功能障碍和神经传递系统改变。然而,如果这些病理因素之间不相互作用,那么没有一个因素能够解释AD患者多样的认知、行为和精神症状。本综述的目的是从以下两个方面来理解线粒体功能障碍与神经传递功能障碍之间的关系:(1)线粒体改变如何通过能量代谢紊乱、氧化应激和细胞凋亡影响胆碱能和单胺能系统;(2)不同的神经传递系统如何通过增加β淀粉样蛋白内化、氧化应激、线粒体通透性破坏和线粒体运输来驱动线粒体功能障碍。所有这些相互作用将根据神经传递系统分别进行讨论。线粒体功能障碍与多巴胺、去甲肾上腺素和组胺改变之间的关联是该研究领域的预期目标。通过揭示AD中线粒体功能障碍周围的复杂相互作用,我们能够更好地开发潜在的治疗方法来延缓、预防或治愈这种毁灭性疾病。