综述
ENGLISH ABSTRACT
补体异常活化促进年龄相关性黄斑变性发生的作用和机制
程心璇
刘祖国 [综述]
廖怿 [综述]
作者及单位信息
·
DOI: 10.3760/cma.j.cn115989-20191023-00461
Role of complement dysregulation in age-related macular degeneration
Cheng Xinxuan
Liu Zuguo
Liao Yi
Authors Info & Affiliations
Cheng Xinxuan
Eye Institute of Xiamen University, Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, School of Medicine, Xiamen University, Fujian Engineering and Research Center of Eye Regenerative Medicine, Xiamen 361000, China
Cheng Xinxuan is working at Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
Liu Zuguo
Eye Institute of Xiamen University, Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, School of Medicine, Xiamen University, Fujian Engineering and Research Center of Eye Regenerative Medicine, Xiamen 361000, China
Liao Yi
Eye Institute of Xiamen University, Fujian Provincial Key Laboratory of Ophthalmology and Visual Science, School of Medicine, Xiamen University, Fujian Engineering and Research Center of Eye Regenerative Medicine, Xiamen 361000, China
·
DOI: 10.3760/cma.j.cn115989-20191023-00461
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摘要

年龄相关性黄斑变性(AMD)是一种常见的致盲眼病,目前依然缺乏有效的治疗手段。作为一种受到遗传、代谢及营养等多因素影响的疾病,慢性炎症反应是促进AMD发生和发展的关键因素。近年来,补体异常在AMD发生和发展中的作用受到广泛关注。其中,以CFH为代表的补体相关AMD风险基因已得到大量遗传学研究证实。采用体内和体外研究模型发现,眼内局部以及全身性的补体异常活化与Bruch膜的改变、玻璃膜疣的形成、视网膜慢性炎症以及脉络膜新生血管等AMD相关病理改变密切相关。补体因子通过激活的补体级联反应损伤视网膜细胞,导致AMD病理改变的发生。因此,补体系统已成为开发针对干性和湿性AMD新疗法的重要靶点。基于此,本综述概括总结了AMD的病理特征、补体相关的AMD风险基因,以及补体异常活化在推动AMD病程发展中的重要作用,以期为AMD治疗寻找新靶点。

年龄相关性黄斑变性;补体;玻璃膜疣;脉络膜新生血管
ABSTRACT

Age-related macular degeneration (AMD) is a common cause of blindness, which is still short of effective therapies.As a complex disease affected by genetical, metabolic and nutritional factors, a key factor to promote the occurrence and development of AMD is chronic inflammation.In recent years, the etiological role of abnormal complement activation in AMD has attracted lots of attention.Genetic analysis has identified a number of complement-related genes, especially CFH, affecting the susceptibility of AMD.Moreover, in vitro and in vivo studies have found that abnormal ocular and systemic complement activations are closely related to the pathological alterations of AMD, including Bruch membrane changes, drusen formation, chronic retinal inflammation and choroidal neovascularization.The dysregulation of complement activation cascades causes the damage of retinal cells, which eventually leads to the pathological changes of AMD.Accordingly, complement system has become a target for new anti-AMD therapy development.This review summarized the pathological characteristics of AMD, complement-related risk genes for AMD, and the role of abnormal complement activation in promoting the progression of AMD, so as to find new targets for AMD treatment.

Age-related macular degeneration;Complement;Drusen;Choroidal neovascularization
Liao Yi, Email: nc.defudabe.umxiroliyoail
引用本文

程心璇,刘祖国,廖怿. 补体异常活化促进年龄相关性黄斑变性发生的作用和机制[J]. 中华实验眼科杂志,2022,40(12):1186-1191.

DOI:10.3760/cma.j.cn115989-20191023-00461

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年龄相关性黄斑变性(age-related macular degeneration,AMD)是造成老年人不可逆视力损伤的重要原因,2040年全球AMD患者预计将增至2.88亿 [ 1 ]。AMD的临床分型可以分为早期非渗出性(干性)AMD、晚期非渗出性(萎缩性)AMD和渗出性或新生血管性(湿性)AMD [ 2 ]。干性AMD患者视力退化不明显,表现为玻璃膜疣(drusen)和/或黄斑处的视网膜色素上皮(retinal pigment epithelium,RPE)改变 [ 2 ]。其中,drusen是含有多种脂类和蛋白质的细胞外沉积物,可能导致RPE功能受损及RPE与脉络膜之间物质代谢转运障碍 [ 3 , 4 , 5 ]。干性AMD进展至晚期出现萎缩性AMD,表现为视力盲点和区域性RPE和下方感光细胞的缺失死亡,又称为地图样萎缩(geographic atrophy,GA) [ 2 ]。少数干性AMD患者在晚期转变为湿性AMD,表现为脉络膜新生血管(choroidal neovascularization,CNV) [ 2 ]。作为一种受到遗传、代谢及营养等多因素影响的疾病,慢性炎症反应是促进AMD发生和发展的关键因素 [ 6 ]。近年来,大量研究表明补体参与AMD的病理过程,补体过度激活导致的免疫损伤加速AMD进程。因此,充分认识AMD病程中补体的致病机制,并进一步开发有针对性的补体药物,对AMD的治疗具有积极的意义。
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备注信息
A
廖怿,Email: nc.defudabe.umxiroliyoail
B
所有作者均声明不存在利益冲突
C
国家重点研发计划项目 (2019YFA0111200、2018YFA0107304、2018YFA0107301)
国家自然科学基金项目 (81700864)
福建省自然科学基金面上项目 (2016J01412)
福建省中青年教师教育科研项目 (JAT160011)
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