项目名称: 星形胶质细胞血管终足ADAM10通路选择性调控神经血管单元缺血性损伤的作用机制研究
项目编号: No.81471230
项目类型: 面上项目
立项/批准年度: 2015
项目学科: 医药、卫生
项目作者: 张强
作者单位: 华中科技大学
项目金额: 70万元
中文摘要: 星形胶质细胞血管终足是神经元和血管之间物质代谢和信号交流的桥梁。血管终足改变导致血脑屏障破坏,影响神经血管单元内各组成成分之间正常的信号交流,其具体机制尚待阐明。ADAM10-N-cadherin信号通路在中枢神经系统发育过程中发挥关键的调节作用,可能参与调解影响血管终足的结构和功能。在前期研究的基础上,本项目拟以临床常见的脑缺血血脑屏障破坏为研究切入点,以形态学、功能影像学结合微透析、分子生物学等方法为技术手段,选择性以星形胶质细胞ADAM10-N-Cadherin通路为调控靶点,采用cre-loxp技术特异性敲除星形胶质细胞ADAM10基因,影响血管终足的结构和功能,重塑脑缺血损害后神经血管单元各组分间的信号交流。从整体水平研究ADAM10-N-Cadherin通路影响神经血管单元的具体分子机制环路,为缺血性脑损伤的治疗提供新的思路和潜在的治疗靶点。
中文关键词: 星形胶质细胞;血管终足;ADAM10;N-cadherin;神经血管单元
英文摘要: Vascular end-feet of astrocytes was seen as a metabolism and signal exchange bridge between neurons and blood vessels. Vascular end-feet structural and functional changes eventually lead to blood brain barrier damage and affect the normal signals communication between the various components of the neurovascular unit which should be elucidated.ADAM10-N-cadherin signaling pathway plays a key regulatory role in central nervous system development and may be involved in mediating the structure and function of vascular end-feet. Based on our previous studies, we tried to selectively down-regulation of on astrocytes through cre-loxp system investigate the relationship among cellular elements in neurovascular units and the possible neural circuits after brain ischemia.
英文关键词: astrocyte;vascular endfeet;ADAM10;N-cadherin;neurovascular unit