食品科学 ›› 2012, Vol. 33 ›› Issue (1): 200-203.

• 生物工程 • 上一篇    下一篇

格列本脲人工抗原的合成与鉴定

刘 盼,郑海涛,何计国*   

  1. 中国农业大学食品科学与营养工程学院
  • 收稿日期:2011-03-22 修回日期:2012-01-05 出版日期:2012-01-15 发布日期:2012-01-12
  • 通讯作者: 刘盼 E-mail:pingdiguo2137@yahoo.com.cn

Synthesis and Identification of Artificial Antigen for Glibenclamide

  • Received:2011-03-22 Revised:2012-01-05 Online:2012-01-15 Published:2012-01-12
  • Contact: Pan LIU E-mail:pingdiguo2137@yahoo.com.cn

摘要: 目的:合成格列本脲人工抗原。方法:采用对氨基苯甲酸法制备半抗原,将半抗原分别与牛血清白蛋白(BSA)和卵清蛋白(OVA)通过碳二亚胺法偶联制备免疫原(Gli-BSA)和包被原(Gli-OVA),利用紫外扫描进行抗原的化学鉴定,通过免疫原免疫Balb/c小鼠,间接酶联免疫吸附法测定抗血清进行生物鉴定。结果:制备了Gli-BSA、Gli-OVA的人工抗原,经紫外光谱扫描,偶联比分别为4:1和17.7:1。免疫小鼠后获得抗血清的效价均达到32000以上,半抑制质量浓度为10μg/mL。结论:成功合成了格列本脲人工抗原,并获得了格列本脲抗体,为格列本脲的免疫学检测方法进一步研究提供了实验基础。

关键词: 格列本脲, 半抗原, 载体蛋白, 完全抗原

Abstract: Objective: To synthesize artificial antigen for glibenclamide. Methods: Hapten was synthesized by diazo reaction with p-aminobenzoic acid, and conjugated separately with BSA (bovine serum albumin) and OVA (ovalbumin) by carbodiimide method. Immunogen and coating antigen were obtained and designated as Gli-BSA and Gli-OVA, respectively. The synthesized artificial antigens were identified by mass spectrometry and UV spectroscopy. The immunogen was used to immunize Balb/c mice and the generated anti-serum was analyzed by indirect ELISA. Results: Gli-BSA and Gli-OVA were successfully synthesized with a coupling ratio of 4:1 and 17.7:1, respectively. The anti-serum titers after the first, second and third immunization of Balb/c mice were all above 32000 and the IC50 was 10 μg/mL. Conclusion: Artificial antigens for glibenclamide has been successfully synthesized and anti-glibenclamide antibodies have been acquired. This study can provide a basis for further studies on immunological detection of glibenclamide.

Key words: glibenclamide, hapten, carrier protein, complete antigen

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