高等学校化学学报 ›› 2015, Vol. 36 ›› Issue (11): 2317.doi: 10.7503/cjcu20150635

• 分析化学 • 上一篇    下一篇

基于SERS的大鼠脑组织免疫分析

杨津1,2, 刘卓3, 苏虹羊1, 彭茹2, 宋薇1, 赵冰1()   

  1. 1. 吉林大学超分子结构与材料国家重点实验室, 长春 130012
    2. 吉林大学基础医学院, 长春 130021
    3. 吉林大学中日联谊医院血管外科, 长春 130021
  • 收稿日期:2015-08-11 出版日期:2015-11-10 发布日期:2015-10-26
  • 作者简介:联系人简介: 赵 冰, 男, 博士, 教授, 博士生导师, 主要从事光谱分析研究. E-mail:zhaob@jlu.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 21273091, 21221063, 21327803, 21411140235)和吉林省科技厅青年基金(批准号: 20130522181JH, 20130522137JH)资助

Immunoassay of Rat Brain Tissue by Surface-enhanced Raman Spectroscopy

YANG Jin1,2, LIU Zhuo3, SU Hongyang1, PENG Ru2, SONG Wei1, ZHAO Bing1,*()   

  1. 1. State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
    2. College of Basic Medical Sciences, Jilin University, Changchun 130021, China
    3. Department of Vascular Surgery of China-Japan Union Hospital, Jilin University, Changchun 130021, China
  • Received:2015-08-11 Online:2015-11-10 Published:2015-10-26
  • Contact: ZHAO Bing E-mail:zhaob@jlu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.21273091, 21221063, 21327803, 21411140235) and the Science and Technology Department Youth Fund of Jilin Province, China(Nos.20130522181JH, 20130522137JH)

摘要:

将常规免疫组织化学法与表面增强拉曼散射光谱(SERS)结合, 建立了一种简便、 快速测定大鼠脑组织中神经元特异性骨架蛋白的新方法. 将所制备的SERS免疫胶体金标签加入至大鼠脑组织冰冻切片, 研究了经免疫识别后组织的SERS光谱, 在脑组织切片中得到了探针分子对巯基苯甲酸(MBA)的特征峰(1076, 1589 cm-1). 对比了不同浓度抗体对SERS信号及免疫组化染色的影响, 结果表明, 与传统的免疫组化法相比, SERS法可以简化步骤, 缩短实验时间, 同时展现出更高的检测灵敏度和选择性.

关键词: 神经丝蛋白200, 表面增强拉曼光谱, 免疫组织化学法

Abstract:

Surface-enhanced Raman scattering(SERS) was used to develop and optimize a novel, quick and simple immunohistochemical ABC(avidin-biotin-HRP complex) assay for detecting specific skeleton protein neurofilament-200(NF-200) in the frozen sections of rat brain tissue. In this study, anti mouse NF-200 labeled colloid gold was used as immunoprobe, which was added into the frozen sections of rat brain tissue containing NF-200 protein. Intense SERS signals of p-mercaptobenzoic acid(MBA) at 1076 and 1589 cm-1 were observed clearly after the specific binding of antigen and antibody. Meanwhile, the SERS spectra and the immunohistochemical staining effect of antigen and antibody complex with different concentrations of anti NF-200 were examined. Compared with the traditional method, this assay can simplify the procedure, moreover, it showed higher sensitivity and selectivity.

Key words: Neurofilament-200(NF-200), Surface-enhanced Raman scattering(SERS), Immunohisto-chemistry

中图分类号: 

TrendMD: