microrna调控小胶质细胞极化在神经系统疾病中的作用和 - 生理学报.pdfVIP

32 生理学报Acta Physiologica Sinica , February 25, 2015, 67(1): 32–40 DOI: 10.13294/j.aps.2015.0003 综 述 MicroRNA调控小胶质细胞极化在神经系统疾病中的作用和机 制研究进展 方雪，谭卫星，何成，曹莉* 第二军医大学神经生物学教研室，上海 200433 摘 要：小胶质细胞是定居于中枢神经系统的巨噬细胞，其激活介导的免疫炎症反应在多种神经系统疾病的病理进程中均扮 M1 M2 M1 演极其重要的角色。激活的小胶质细胞存在 和 两种形态、功能显著不同的极化类型。 型细胞主要发挥杀菌和促炎 M2 microRNA (miRNA) 作用， 型细胞则具有抗炎和促进神经修复等功能。越来越多的证据表明， 在不同极化状态的小胶质细 胞中表达模式存在明显差异，miRNA可以调控小胶质细胞的极化过程，并进一步影响神经疾病的病理进展。充分阐明疾病 发病过程中小胶质细胞的极化亚型及其miRNA调节机制，有助于深入认识小胶质细胞参与神经系统疾病发病的免疫病理机 制，为寻找更加有效的神经疾病治疗新靶点提供理论依据。 关键词：microRNA ；小胶质细胞；极化；神经系统疾病 中图分类号：R329 MicroRNAs in microglia polarization and CNS diseases: mechanism and functions * FANG Xue, TAN Wei-Xing, HE Cheng, CAO Li Department of Neurobiology, Second Military Medical University, Shanghai 200433, China Abstract: Microglia are resident macrophages of central nervous system (CNS), and thus act as the crucial stuff of immune response and play very important roles in the progress of various CNS diseases. There are two different polarization statuses of activated microglia, M1 and M2 phenotypes. M1 polarized microglia are important for eradicating bacterial and promoting inflammation, whereas M2 cells are characterized by anti-inflammation and tissue remodeling. Recently, more and more evidence indicated that different polarized microglia showed diverse microRNA (miRNA) expression profiles. MiRNAs regulate microglia polarization, and thus affect the progress of CNS diseases. Fully exploring the polarization status of microglia during CNS diseases and the role of miRNAs in microglia polarization will be very helpful for a deep understanding of the roles of microglia