{"title":"视网膜退行性疾病:补体系统-小胶质细胞串扰。","authors":"Jia Gao, Wei Wang, Ya Mo","doi":"10.1016/j.survophthal.2025.08.005","DOIUrl":null,"url":null,"abstract":"<p><p>Retinal degenerative diseases (RDD) are a group of age-related blinding eye diseases characterized by progressive degeneration and functional impairment of retinal photoreceptors or ganglion cells, for which there are currently no effective treatments. The complement system is an important innate immune system in the human body, activated through 3 pathways (classical pathway, lectin pathway, and alternative pathway) to ultimately form a membrane attack complex that acts on target cells. Microglia are the innate immune cells of the retina, responsible for maintaining retinal homeostasis. Complement system activation and microglial activation have been identified in RDD. Complement activation products C3 and C5 generate anaphylatoxins C3a and C5a, whose receptors C3aR and C5aR1 can activate microglia. Activated microglia can further produce complement C1q to activate the complement system, forming a positive feedback loop that exacerbates retinal damage. In this review, we focus on the crosstalk between the complement system and microglia in age-related macular degeneration, diabetic retinopathy, glaucoma, and pathological myopia-related retinal degeneration, and summarize clinical studies targeting the complement system and microglia for the treatment of RDD.</p>","PeriodicalId":22102,"journal":{"name":"Survey of ophthalmology","volume":" ","pages":""},"PeriodicalIF":5.9000,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Retinal degenerative diseases: Complement system-microglia crosstalk.\",\"authors\":\"Jia Gao, Wei Wang, Ya Mo\",\"doi\":\"10.1016/j.survophthal.2025.08.005\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Retinal degenerative diseases (RDD) are a group of age-related blinding eye diseases characterized by progressive degeneration and functional impairment of retinal photoreceptors or ganglion cells, for which there are currently no effective treatments. The complement system is an important innate immune system in the human body, activated through 3 pathways (classical pathway, lectin pathway, and alternative pathway) to ultimately form a membrane attack complex that acts on target cells. Microglia are the innate immune cells of the retina, responsible for maintaining retinal homeostasis. Complement system activation and microglial activation have been identified in RDD. Complement activation products C3 and C5 generate anaphylatoxins C3a and C5a, whose receptors C3aR and C5aR1 can activate microglia. Activated microglia can further produce complement C1q to activate the complement system, forming a positive feedback loop that exacerbates retinal damage. In this review, we focus on the crosstalk between the complement system and microglia in age-related macular degeneration, diabetic retinopathy, glaucoma, and pathological myopia-related retinal degeneration, and summarize clinical studies targeting the complement system and microglia for the treatment of RDD.</p>\",\"PeriodicalId\":22102,\"journal\":{\"name\":\"Survey of ophthalmology\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":5.9000,\"publicationDate\":\"2025-08-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Survey of ophthalmology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1016/j.survophthal.2025.08.005\",\"RegionNum\":2,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"OPHTHALMOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Survey of ophthalmology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1016/j.survophthal.2025.08.005","RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"OPHTHALMOLOGY","Score":null,"Total":0}
Retinal degenerative diseases (RDD) are a group of age-related blinding eye diseases characterized by progressive degeneration and functional impairment of retinal photoreceptors or ganglion cells, for which there are currently no effective treatments. The complement system is an important innate immune system in the human body, activated through 3 pathways (classical pathway, lectin pathway, and alternative pathway) to ultimately form a membrane attack complex that acts on target cells. Microglia are the innate immune cells of the retina, responsible for maintaining retinal homeostasis. Complement system activation and microglial activation have been identified in RDD. Complement activation products C3 and C5 generate anaphylatoxins C3a and C5a, whose receptors C3aR and C5aR1 can activate microglia. Activated microglia can further produce complement C1q to activate the complement system, forming a positive feedback loop that exacerbates retinal damage. In this review, we focus on the crosstalk between the complement system and microglia in age-related macular degeneration, diabetic retinopathy, glaucoma, and pathological myopia-related retinal degeneration, and summarize clinical studies targeting the complement system and microglia for the treatment of RDD.
期刊介绍:
Survey of Ophthalmology is a clinically oriented review journal designed to keep ophthalmologists up to date. Comprehensive major review articles, written by experts and stringently refereed, integrate the literature on subjects selected for their clinical importance. Survey also includes feature articles, section reviews, book reviews, and abstracts.