Development of a cELISA for effective detection of the antibody against H7 subtype of avian influenza virus
H7 avian influenza viruses (AIVs) normally circulated among birds before. From 1996 to 2012, human infections with H7 AIVs (H7N2, H7N3, and H7N7) were reported in Canada, Italy, Mexico, the Netherlands, the United Kingdom and the USA. Until March 2013, human infections with H7N9 AIVs were reported i...
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KeAi Communications Co., Ltd.
2022-01-01
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| Series: | Journal of Integrative Agriculture |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311921636456 |
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| author | Cong-cong WANG Si-wen WANG Ying ZHANG Jian-zhong SHI Xin YIN Cheng-jun LI Xiu-rong WANG |
| author_facet | Cong-cong WANG Si-wen WANG Ying ZHANG Jian-zhong SHI Xin YIN Cheng-jun LI Xiu-rong WANG |
| author_sort | Cong-cong WANG |
| collection | DOAJ |
| description | H7 avian influenza viruses (AIVs) normally circulated among birds before. From 1996 to 2012, human infections with H7 AIVs (H7N2, H7N3, and H7N7) were reported in Canada, Italy, Mexico, the Netherlands, the United Kingdom and the USA. Until March 2013, human infections with H7N9 AIVs were reported in China. Since then, H7N9 AIVs have continued to circulate in both humans and birds. Therefore, the detection of antibodies against the H7 subtype of AIVs has become an important topic. In this study, a competitive enzyme-linked immunosorbent assay (cELISA) method for the detection of antibody against H7 AIVs was established. The optimal concentration of antigen coating was 5 μg mL−1, serum dilution was 1/10, and enzyme-labeled antibody was 1/3 000. To determine the cut-off value of cELISA, percent inhibition (PI) was determined by using receiver operating characteristic (ROC) curve analysis in 178 AIVs negative samples and 368 AIVs positive serum samples (n=546). When PI was set at 40%, the specificity and sensitivity of cELISA were 99.4 and 98.9%, respectively. This method could detect the antibodies against H7Nx (N1–N4, N7–N9) AIVs, and showed no reaction with AIVs of H1–H6 and H8–H15 subtypes or common avian viruses such as Newcastle disease virus (NDV), Infectious bronchitis virus (IBV) and Infectious bursal disease virus (IBDV), exhibiting good specificity. This method showed a coincidence rate of 98.56% with hemagglutinin inhibition (HI) test. And the repeatability experiment revealed that the coefficients of variation (CV) of intra- and inter-batch repetition were all less than 12%. The data indicated that the cELISA antibody-detection method established in this study provided a simple and accurate technical support for the detection of a large number of antibody samples of H7-AIV. |
| format | Article |
| id | doaj-art-e3dee3d9307245ca9fbc021792f8f5f2 |
| institution | Kabale University |
| issn | 2095-3119 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj-art-e3dee3d9307245ca9fbc021792f8f5f22025-08-20T03:58:03ZengKeAi Communications Co., Ltd.Journal of Integrative Agriculture2095-31192022-01-0121119920710.1016/S2095-3119(21)63645-6Development of a cELISA for effective detection of the antibody against H7 subtype of avian influenza virusCong-cong WANG0Si-wen WANG1Ying ZHANG2Jian-zhong SHI3Xin YIN4Cheng-jun LI5Xiu-rong WANG6State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, P.R.China; WANG Cong-cong, Tel: +86-451-51051684State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, P.R.ChinaState Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, P.R.China; Shenyang Institute of Technology, Shenyang 110870, P.R.ChinaState Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, P.R.ChinaState Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, P.R.ChinaState Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, P.R.ChinaState Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, P.R.China; Correspondence WANG Xiu-rong, Tel: +86-451-51051680, Fax: +86-451-51997166H7 avian influenza viruses (AIVs) normally circulated among birds before. From 1996 to 2012, human infections with H7 AIVs (H7N2, H7N3, and H7N7) were reported in Canada, Italy, Mexico, the Netherlands, the United Kingdom and the USA. Until March 2013, human infections with H7N9 AIVs were reported in China. Since then, H7N9 AIVs have continued to circulate in both humans and birds. Therefore, the detection of antibodies against the H7 subtype of AIVs has become an important topic. In this study, a competitive enzyme-linked immunosorbent assay (cELISA) method for the detection of antibody against H7 AIVs was established. The optimal concentration of antigen coating was 5 μg mL−1, serum dilution was 1/10, and enzyme-labeled antibody was 1/3 000. To determine the cut-off value of cELISA, percent inhibition (PI) was determined by using receiver operating characteristic (ROC) curve analysis in 178 AIVs negative samples and 368 AIVs positive serum samples (n=546). When PI was set at 40%, the specificity and sensitivity of cELISA were 99.4 and 98.9%, respectively. This method could detect the antibodies against H7Nx (N1–N4, N7–N9) AIVs, and showed no reaction with AIVs of H1–H6 and H8–H15 subtypes or common avian viruses such as Newcastle disease virus (NDV), Infectious bronchitis virus (IBV) and Infectious bursal disease virus (IBDV), exhibiting good specificity. This method showed a coincidence rate of 98.56% with hemagglutinin inhibition (HI) test. And the repeatability experiment revealed that the coefficients of variation (CV) of intra- and inter-batch repetition were all less than 12%. The data indicated that the cELISA antibody-detection method established in this study provided a simple and accurate technical support for the detection of a large number of antibody samples of H7-AIV.http://www.sciencedirect.com/science/article/pii/S2095311921636456H7 subtypeinfluenzamonoclonal antibodycELISA |
| spellingShingle | Cong-cong WANG Si-wen WANG Ying ZHANG Jian-zhong SHI Xin YIN Cheng-jun LI Xiu-rong WANG Development of a cELISA for effective detection of the antibody against H7 subtype of avian influenza virus Journal of Integrative Agriculture H7 subtype influenza monoclonal antibody cELISA |
| title | Development of a cELISA for effective detection of the antibody against H7 subtype of avian influenza virus |
| title_full | Development of a cELISA for effective detection of the antibody against H7 subtype of avian influenza virus |
| title_fullStr | Development of a cELISA for effective detection of the antibody against H7 subtype of avian influenza virus |
| title_full_unstemmed | Development of a cELISA for effective detection of the antibody against H7 subtype of avian influenza virus |
| title_short | Development of a cELISA for effective detection of the antibody against H7 subtype of avian influenza virus |
| title_sort | development of a celisa for effective detection of the antibody against h7 subtype of avian influenza virus |
| topic | H7 subtype influenza monoclonal antibody cELISA |
| url | http://www.sciencedirect.com/science/article/pii/S2095311921636456 |
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