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Phage displayed domain antibody mimics for pyrethroid and its application in immunoassay

文献类型: 外文期刊

作者: Zhao, Yanyan 1 ; Liang, Ying 2 ; Liu, Yuan 2 ; Tu, Sicong 4 ; Zhao, Shengming 1 ; Liu, Xianjin 2 ; Tu, Kang 3 ;

作者机构: 1.Henan Inst Sci & Technol, Sch Food Sci & Technol, Xinxiang 453003, Henan, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Agr Prod Qual Safety & Nutr Res, Minist Agr & Rural Affairs,Key Lab Control Techno, Key Lab Food Qual & Safety Jiangsu Prov,State Key, Nanjing 210014, Peoples R China

3.Nanjing Agr Univ, Coll Food Sci & Technol, Nanjing 210095, Peoples R China

4.Univ New South Wales, Sch Med Sci, Sydney, NSW 2052, Australia

关键词: domain antibody; enzyme-linked immunosorbent assay; phenoxybenzoic acid; pyrethroid

期刊名称:INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING ( 影响因子:2.032; 五年影响因子:2.137 )

ISSN: 1934-6344

年卷期: 2020 年 13 卷 2 期

页码:

收录情况: SCI

摘要: Anti-idiotypic antibodies which can mimic antigens have many potential applications in the immunoassay. This research used the monoclonal antibody of the conserved chemical region of pyrethroids, 3-phenoxybenzoic acid (PBA), and the domain antibody library to develop an environmentally-friendly immunoassay for the detection of pyrethroids. The domain antibodies (A8, B8, and C6) which bound to anti-PBA monoclonal antibody (MAb) were isolated from a naive phage display human domain antibody library. This domain antibody is cloneable, pyrethroid-free, and applicable as a competitive mimetic antigen in the immunoassay. The best immunoassay was achieved using A8, resulting in IC50 of 0.714 mu g/mL for PBA, 1.775 mu g/mL for Cypermethrin, 1.624 mu g/mL for beta-cypermethrin, 3.675 mu g/mL for Fenvalerate, and 4.895 mu g/mL for Flucythrinate. This way of selecting anti-idiotypic antibodies to detect pyrethroids could provide potential applications in developing immunoassays for identifying various chemical contaminants in food.

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