项目名称: B细胞受体BR3在多发性硬化疾病模型中对神经元作用机制的研究
项目编号: No.81200925
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 神经系统疾病、精神疾病
项目作者: 张磊
作者单位: 中国科学院生物物理研究所
项目金额: 23万元
中文摘要: 多发性硬化是一种伴随神经退行性损伤的自身免疫疾病,过去的治疗药物主要针对其炎性反应,近年来同时改善神经损伤和炎症反应的药物研发日益得到重视。临床研究表明在患者中阻断B细胞功能有效预防治疗神经损伤,但其作用机制并不清楚。BR3 (又称TNFRSF13C)是调控B细胞存活和分化的关键分子之一,申请人前期工作表明该分子特异性表达在神经细胞中,本项目将以BR3基因敲除小鼠为工具,探索在缺失成熟B细胞的情况下多发性硬化发病过程中神经损伤的特征。本项目将进一步研究该分子对神经细胞生长的调控机制,从而有助于理解多发性硬化发病中B细胞缺失状态下神经损伤修复的过程,为研发相关的多发性硬化药物提供理论依据。
中文关键词: BR3;分叉;神经元迁移;皮层发育;Rac1
英文摘要: Multiple sclerosis (MS) is an autoimmune disease with axonal loss.The related drug development has been increasingly focused on both inflammation and neuronal injury. Recent clinical trials indicated B cell depletion prevented neuropathy in relapsing-remitting multiple sclerosis (MS). However, the mechanism is not very clear yet. In our previous study, BR3 (TNFRSF13C), a critical factor in B cell homeostasis, is also specifically expressed in neurons. To characterize the neuronal damage in the disease progression without B cells, BR3 (TNFRSF13C) knockout mice deficient of mature B cells will be used. We plan to further explore the molecular mechanism how BR3 regulates neuronal damages in experimental allergic encephalomyelitis (EAE), which will help us better understand how neurons are injured in MS patients interfered with B cell depleted drugs.
英文关键词: BR3;branching;neuronal migration;cortical development;Rac1