盐酸可乐定人工抗原的合成及鼠源多抗血清ELISA鉴定
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(1. 河南科技大学食品与生物工程学院,河南 洛阳 471003;2. 河南省农业科学院动物免疫学重点实验室,河南 郑州 450002;3. 西北农林科技大学动物医学院,陕西 咸阳 712100;4. 中国检验检疫科学研究院,北京 100176)

作者简介:

王耀,男,河南科技大学副教授,博士。

通讯作者:

胡骁飞(1972—),男,河南省农业科学院研究员,博士。E-mail:huxf1972@126.com

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基金项目:

国家自然科学基金(编号:31702218);国家级大学生创新创业训练计划(编号:202010464024);河南省青年人才托举工程(编号:2020HYTP029);河南省动物免疫学重点实验室开放课题(编号:PKLAI20170603);河南省科技攻关(编号:182102110445);河南省自然科学基金(编号:182300410038);河南省农业科学院科研发展专项资金(编号:2019CY04)


Synthesis of artificial antigen and ELISA identification of mouse polyclonal antiserum against clonidine hydrochloride
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(1. Food and Bioengineering College, Henan University of Science and Technology, Luoyang, Henan 471003, China; 2. Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, Henan 450002, China; 3. College of Veterinary Medicine, Northwest A&F University, Xianyang, Shaanxi 712100, China; 4. Chinese Academy of Inspection and Quarantine, Beijing 100176, China)

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    摘要:

    目的:获得敏感性高,特异性强的新型瘦肉精盐酸可乐定(Clonidine hydrochloride,CLO)鼠源多抗血清。方法:以CLO的衍生物盐酸阿可乐定(Apraclonidine hydrochloride,ACLO)为半抗原,采用戊二醛法将ACLO分别与牛血清白蛋白(Bovine serum albumin,BSA)和鸡卵清蛋白(Ovalbumin,OVA)偶联,合成免疫抗原CLO-BSA和包被抗原CLO-OVA。采用紫外扫描和聚丙烯酰胺凝胶电泳鉴定其偶联效果后,免疫BALB/c小鼠,制备多抗血清。利用间接ELISA和间接竞争ELISA鉴定其免疫学特性。结果:合成的人工抗原免疫效果较好,所获小鼠多抗血清效价均达到1∶12 800以上,其中3号小鼠敏感性最好,半数抑制质量浓度(IC50)为82.75 ng/mL,与其他几种常见的瘦肉精类药物的交叉反应率均小于0.9%,特异性良好。结论:通过戊二醛法成功合成了高免疫原性的CLO人工抗原,并获得敏感性高,特异性强的CLO鼠源多抗血清。

    Abstract:

    Objective: The aim of this study was to obtain highly sensitive and specific mouse polyclonal antiserum of Clonidine hydrochloride (CLO). Methods: Apraclonidine (ACLO), a derivative of CLO, was acted as hapten of clonidine (CLO) to synthesize immune antigen CLO-BSA and envelope antigen CLO-OVA by glutaraldehyde (GA). The coupling effect was identified by ultraviolet scanning and polyacrylamide gel electrophoresis. Then, BALB/c mice were immunized and their immunological characteristics were identified by indirect ELISA and indirect competitive ELISA. Results: The titer of polyclonal antiserum of all mice were higher than 1∶12 800, and the polyclonal antiserum of No.3 mouse has the best sensitivity, the IC50 was 82.75 ng/mL, and the cross reaction rate with several other common clenbuterol was all less than 0.9%. Conclusion: In this study, successfully synthesized the effective artificial antigen of CLO by GA method, and obtained the mouse polyclonal antibody of CLO with high sensitivity and specificity.

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王耀,曹金博,李铁梅,等.盐酸可乐定人工抗原的合成及鼠源多抗血清ELISA鉴定[J].食品与机械,2021,37(7):76-80.
WANGYao, CAOJinbo, LITiemei, et al. Synthesis of artificial antigen and ELISA identification of mouse polyclonal antiserum against clonidine hydrochloride[J]. Food & Machinery,2021,37(7):76-80.

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  • 收稿日期:2020-06-14
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  • 在线发布日期: 2023-02-15
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