TLR4对脑缺血再灌注小鼠皮质IRF-3和IFN-β表达的影响

被引:5
作者
刘姗姗
李静平
高音
机构
[1] 齐齐哈尔医学院基础医学院解剖学教研室
基金
黑龙江省自然科学基金;
关键词
脑缺血再灌注; Toll样受体4; Toll样受体4阻断; 干扰素调节因子3; β干扰素;
D O I
暂无
中图分类号
R743.3 [急性脑血管疾病(中风)];
学科分类号
1002 ;
摘要
目的探讨Toll样受体4(TLR4)对脑缺血再灌注小鼠皮质干扰素调节因子3(IRF-3)和β干扰素(IFN-β)表达的影响。方法采用TLR4抗体封闭阻断TLR4,Westernblot检测皮质TLR4、IRF-3和IFN-β表达变化。小鼠随机分为3组:假手术组(S组)、缺血再灌注组(I组)、TLR4阻断组(T组),各组又分1d、2d、3d、4d4个时间点组。结果缺血再灌注组TLR4、IRF-3和IFN-β表达水平明显高于假手术组(P<0.05),而TLR4阻断组表达水平明显低于缺血再灌注组(P<0.05)。结论缺血再灌注可激活TLR4,引起IRF-3和IFN-β表达量增加,而采用TLR4抗体封闭阻断TLR4后,IRF-3和IFN-β表达量减少。提示TLR4通过上调IRF-3和IFN-β表达参与脑缺血再灌注的反应机制。
引用
收藏
页码:98 / 100+104 +104
页数:4
相关论文
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