摘要巨噬细胞是非特异性免疫反应的主要效应细胞,极化的巨噬细胞在炎症反应、损伤修复、血管生成等病理过程中扮演了重要角色.根据其极化方式,巨噬细胞分为经典活化型(M1型)和选择性活化型(M2型).M1型抑制新生血管形成,M2型促进新生血管形成.因此,调控脉络膜新生血管(CNV)的生长主要取决于M1型/M2型的比例.在视网膜老化和损伤的微环境下,巨噬细胞极化成促血管纤维生成的M2型,产生包括血管内皮生长因子(VEGF)在内的多种促血管生成因子,启动并推进新生血管和纤维瘢痕的形成.调控巨噬细胞极化有望从源头上控制促血管生成因子的生成及由此触发的CNV;针对巨噬细胞极化的靶向治疗,可以协同抗VEGF药物治疗,为CNV患者的治疗提供新的选择.

abstractsMacrophages are major effecter cells of nonspecific immune response,the polarization of which plays a great role in inflammation,repairing and angiogenesis.According to functional phenotypes,macrophages can be polarized to classically activated type (M1),which could promote angiogenesis,and alternatively activated type (M2),which could inhibit angiogenesis.The proportion of M1/M2 could modulate the growth of choroidal neovascularization (CNV).Under the conditions of aging and injury within the retina,macrophages may polarize to M2,which could generate several proangiogenic factors,initiating and promoting the formation of angiogenesis and fibrous scar.Therefore,regulation of macrophage polarization is expected to inhibit angiogenesis and provide new insight for treatment of CNV.