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突触囊泡融合蛋白Munc18-1在小鼠耳蜗内毛细胞的定位表达

, PP. 439-442

Keywords: Munc-蛋白,CtBP蛋白,突触囊泡,内毛细胞

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Abstract:

目的研究突触囊泡融合蛋白Munc18-1在小鼠耳蜗内毛细胞的表达及定位。方法应用激光共聚焦成像技术,通过免疫荧光单标法检测Munc18-1蛋白在小鼠耳蜗内毛细胞中的表达,免疫荧光双标法检测其与带状突触蛋白CtBP2的定位关系。结果通过激光共聚焦成像技术检测发现,免疫荧光单标染色显示内毛细胞胞质中有高浓度的Munc18-1蛋白表达,免疫荧光双标染色结果显示Munc18-1蛋白聚集在CtBP2蛋白附近。结论Munc18-1蛋白在耳蜗内毛细胞中有表达,聚集在突触蛋白CtBP2周围,可能与维持突触囊泡融合、胞吐功能紧密相关。

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