• Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, National Clinical Research Center for Eye Diseases, Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai 200080, China;
Sun Xiaodong, Email: xdsun@sjtu.edu.cn
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Age-related macular degeneration (AMD) is an age-related degenerative disease with complex pathogenesis, whose initial lesion is accompanied with immune inflammatory response. Amyloid beta (Aβ), a small-molecule protein generated by the hydrolysis of amyloid precursor protein, as the main component, is involved in the formation of drusen, which serves as the early characteristic of AMD. In the local inflammatory response of AMD, Aβ is an important pathological deposit, promoting the proliferation and differentiation of macrophages as well as changing their morphology to accelerate the progression of AMD. In addition, Aβ can also regulate immune molecules and the complement system by activating inflammatory pathways, thus mediating chronic retinal inflammation and promoting the course of AMD. However, since AMD is not caused by inflammation alone, only the immunosuppression may not be effective in inhibiting the course of AMD, and thus the future development is to rebalance the disordered immune system in AMD patients eyes.

Citation: Huang Xiaoxu, Sun Xiaodong. Advances in immunoinflammatory regulation of β amyloid in age-related macular degeneration. Chinese Journal of Ocular Fundus Diseases, 2021, 37(12): 969-973. doi: 10.3760/cma.j.cn511434-20201113-00556 Copy

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