神经生长因子在豚鼠耳蜗中的分布及其意义

Expression and Significance of NGF in the Cochlea of Guinea Pigs

池君;张学渊;宋武战;石东文;

1:第三军医大学附属西南医院耳鼻咽喉科

2:第三军医大学附属西南医院耳鼻咽喉科

3:第三军医大学成都军区昆明总医院

4:第三军医大学疾病蛋白质组学重庆市市级重点实验室 (重庆400038)

摘要
目的观察神经生长因子(nerve growthfactor,NGF)在正常豚鼠耳蜗中的定位分布,为进一步研究其在听觉通路中的作用机制提供依据。方法健康杂色豚鼠20只,制备耳蜗石蜡切片,用兔抗小鼠神经生长因子多克隆抗体行免疫组织化学染色(SP法),检测NGF在耳蜗中的表达。结果在正常豚鼠耳蜗中,NGF在螺旋神经节细胞、内外毛细胞、支持细胞、听觉神经纤维中均有表达,细胞内定位主要在胞浆。结论NGF在听觉感受器和听觉通路中有分布,表明在听觉功能的维持中起着一定的作用。
关键词
神经生长因子(NGF);耳蜗;免疫组织化学
基金项目(Foundation):
作者
池君;张学渊;宋武战;石东文;
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