Detection of antibodies against avian influenza virus by protein microarray using nucleoprotein expressed in insect cells
文献类型: 外文期刊
第一作者: Zhao, Yuhui
作者: Zhao, Yuhui;Li, Guangxing;Wang, Xiurong;Chen, Pucheng;Zeng, Xianying;Bao, Hongmei;Wang, Yunhe;Xu, Xiaolong;Jiang, Yongping;Chen, Hualan
作者机构:
关键词: avian influenza virus;eukaryotic expression;nucleoprotein;protein microarray
期刊名称:JOURNAL OF VETERINARY MEDICAL SCIENCE ( 影响因子:1.267; 五年影响因子:1.348 )
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收录情况: SCI
摘要: Avian influenza (AI) is an infectious disease caused by avian influenza viruses (AIVs) which belong to the influenza virus A group. AI causes tremendous economic losses in poultry industry and pose great threatens to human health. Active serologic surveillance is necessary to prevent and control the spread of AI. In this study, a protein microarray using nucleoprotein (NP) of H5N1 AIV expressed in insect cells was developed to detect antibodies against AIV NP protein. The protein microarray was used to test Newcastle disease virus (NDV), infectious bursal disease virus (IBDV), AIV positive and negative sera. The results indicated that the protein microarray could hybridize specifically with antibodies against AIV with strong signals and without cross-hybridization. Moreover, 76 field serum samples were detected by microarray, enzyme-linked immunosorbent assay (ELISA) and hemagglutination inhibition test (HI). The positive rate was 92.1% (70/76), 93.4% (71/76) and 89.4% (68/76) by protein microarray, ELISA and HI test, respectively. Compared with ELISA, the microarray showed 100% (20/20) agreement ratio in chicken and 98.2% (55/56) in ornamental bird. In conclusion, this method provides an alternative serological diagnosis for influenza antibody screening and will provide a basis for the development of protein microarrays that can be used to respectively detect antibodies of different AIV subtypes and other pathogens.
分类号: S85
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