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Jin J, Bai Y, Zhang Y, Lu W, Zhang S, Zhao X, Sun Y, Wu Y, Zhang A, Zhang G, Sun A, Zhuang G. Establishment and characterization of a novel indirect ELISA method based on ASFV antigenic epitope-associated recombinant protein. Int J Biol Macromol 2023; 253:127311. [PMID: 37865977 DOI: 10.1016/j.ijbiomac.2023.127311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 10/24/2023]
Abstract
African Swine Fever (ASF) is an acute and highly lethal disease in pigs caused by African Swine Fever Virus (ASFV). Viral proteins have been commonly used as antigenic targets for the development of ASF diagnostic methods. However, the prokaryotic expression of viral proteins has deficiencies such as instability, insolubility, and high cost in eukaryotic situations. This study screened and verified ASFV-encoded p72, p54, and p30 protein antigenic epitopes. Subsequently, a novel antigenic epitope-associated recombinant protein was designed based on an ideal structural protein and expressed in Escherichia coli (E. coli). Western blot analysis indicated that the recombinant protein could specifically react with the monoclonal antibody (mAb) of p72 and polyclonal antibodies of p54 and p30, respectively. Next, an ASF indirect ELISA (iELISA) method was established based on the recombinant protein, which has no specific reaction with sera of other important pig viral diseases. Meanwhile, it shows a sensitivity to detecting dilutions of ASF-positive reference serum up to 1:6400. The clinical sample detection results showed a high coincidence rate of 98 % with a commercial competition ELISA kit. In conclusion, we established a novel specific, and sensitive ASF serologic detection method that opens new avenues for ASF serodiagnostic method development.
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Affiliation(s)
- Jiaxin Jin
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China; International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Yilin Bai
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou, Henan, China
| | - Yuanyuan Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China; International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Wenlong Lu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China; International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Shuai Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China; International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Xuyang Zhao
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China; International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Yaning Sun
- Key Laboratory of Animal Immunology, Ministry of Agriculture and Rural Affairs & Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Yanan Wu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China; International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Angke Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China; International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Gaiping Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China; International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China; Longhu Laboratory of Advanced Immunology, Zhengzhou, China
| | - Aijun Sun
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China; International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China.
| | - Guoqing Zhuang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China; International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China.
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Hu Z, Tian X, Lai R, Wang X, Li X. Current detection methods of African swine fever virus. Front Vet Sci 2023; 10:1289676. [PMID: 38144466 PMCID: PMC10739333 DOI: 10.3389/fvets.2023.1289676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/24/2023] [Indexed: 12/26/2023] Open
Abstract
African swine fever (ASF), caused by the African swine fever virus (ASFV), is a highly contagious and notifiable animal disease in domestic pigs and wild boars, as designated by the World Organization for Animal Health (WOAH). The effective diagnosis of ASF holds great importance in promptly controlling its spread due to its increasing prevalence and the continuous emergence of variant strains. This paper offers a comprehensive review of the most common and up-to-date methods established for various genes/proteins associated with ASFV. The discussed methods primarily focus on the detection of viral genomes or particles, as well as the detection of ASFV associated antibodies. It is anticipated that this paper will serve as a reference for choosing appropriate diagnostic methods in diverse application scenarios, while also provide direction for the development of innovative technologies in the future.
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Affiliation(s)
- Zhiqiang Hu
- Shandong Engineering Laboratory of Pig and Poultry Healthy Breeding and Disease Diagnosis Technology, Xiajin New Hope Liuhe Agriculture and Animal Husbandry Co., Ltd., Dezhou, China
- Shandong New Hope Liuhe Co., Ltd., Qingdao, China
- Shandong New Hope Liuhe Agriculture and Animal Husbandry Technology Co., Ltd., (NHLH Academy of Swine Research), Dezhou, China
- China Agriculture Research System-Yangling Comprehensive Test Station, Xianyang, China
| | - Xiaogang Tian
- Shandong Engineering Laboratory of Pig and Poultry Healthy Breeding and Disease Diagnosis Technology, Xiajin New Hope Liuhe Agriculture and Animal Husbandry Co., Ltd., Dezhou, China
- Shandong New Hope Liuhe Co., Ltd., Qingdao, China
- Shandong New Hope Liuhe Agriculture and Animal Husbandry Technology Co., Ltd., (NHLH Academy of Swine Research), Dezhou, China
| | - Ranran Lai
- Shandong Engineering Laboratory of Pig and Poultry Healthy Breeding and Disease Diagnosis Technology, Xiajin New Hope Liuhe Agriculture and Animal Husbandry Co., Ltd., Dezhou, China
- Shandong New Hope Liuhe Co., Ltd., Qingdao, China
- Shandong New Hope Liuhe Agriculture and Animal Husbandry Technology Co., Ltd., (NHLH Academy of Swine Research), Dezhou, China
| | - Xinglong Wang
- College of Veterinary Medicine, Northwest A&F University, Xianyang, China
| | - Xiaowen Li
- Shandong Engineering Laboratory of Pig and Poultry Healthy Breeding and Disease Diagnosis Technology, Xiajin New Hope Liuhe Agriculture and Animal Husbandry Co., Ltd., Dezhou, China
- Shandong New Hope Liuhe Co., Ltd., Qingdao, China
- Shandong New Hope Liuhe Agriculture and Animal Husbandry Technology Co., Ltd., (NHLH Academy of Swine Research), Dezhou, China
- China Agriculture Research System-Yangling Comprehensive Test Station, Xianyang, China
- College of Veterinary Medicine, Northwest A&F University, Xianyang, China
- Key Laboratory of Feed and Livestock and Poultry Products Quality and Safety Control, Ministry of Agriculture and Rural Affairs, New Hope Liuhe Co., Ltd., Chengdu, China
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Jung MC, Le VP, Yoon SW, Le TN, Trinh TBN, Kim HK, Kang JA, Lim JW, Yeom M, Na W, Nah JJ, Choi JD, Kang HE, Song D, Jeong DG. A Robust Quadruple Protein-Based Indirect ELISA for Detection of Antibodies to African Swine Fever Virus in Pigs. Microorganisms 2023; 11:2758. [PMID: 38004769 PMCID: PMC10672928 DOI: 10.3390/microorganisms11112758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/02/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
African swine fever (ASF) emerged in domestic pigs and wild boars in China in 2018 and rapidly spread to neighboring Asian countries. Currently, no effective vaccine or diagnostic tests are available to prevent its spread. We developed a robust quadruple recombinant-protein-based indirect enzyme-linked immunosorbent assay (QrP-iELISA) using four antigenic proteins (CD2v, CAP80, p54, and p22) to detect ASF virus (ASFV) antibodies and compared it with a commercial kit (IDvet) using ASFV-positive and -negative serum samples. The maximum positive/negative value was 24.033 at a single antigen concentration of 0.25 μg/mL and quadruple ASFV antigen combination of 1 μg/mL at a 1:100 serum dilution. Among 70 ASFV-positive samples, 65, 67, 65, 70, 70, and 14 were positive above the cut-offs of 0.121, 0.121, 0.183, 0.065, 0.201, and 0.122, for CD2v, CAP80, p54, p22-iELISA, QrP-iELISA, and IDvet, respectively, with sensitivities of 92.9%, 95.7%, 92.9%, 100%, 100%, and 20%, respectively, all with 100% specificity. The antibody responses in QrP-iELISA and IDvet were similar in pigs infected with ASFV I. QrP-iELISA was more sensitive than IDvet for early antibody detection in pigs infected with ASFV II. These data provide a foundation for developing advanced ASF antibody detection kits critical for ASF surveillance and control.
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Affiliation(s)
- Min-Chul Jung
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea; (M.-C.J.); (T.N.L.); (J.-A.K.)
- Department of Proteome Structural Biology, KRIBB School of Bioscience, University of Science and Technology, Daejeon 34141, Republic of Korea
| | - Van Phan Le
- Department of Microbiology and Infectious Diseases, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi 100000, Vietnam; (V.P.L.); (T.B.N.T.)
| | - Sun-Woo Yoon
- Department of Biological Science and Biotechnology, Andong National University, Andong 36729, Republic of Korea;
| | - Thi Ngoc Le
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea; (M.-C.J.); (T.N.L.); (J.-A.K.)
- Department of Proteome Structural Biology, KRIBB School of Bioscience, University of Science and Technology, Daejeon 34141, Republic of Korea
| | - Thi Bich Ngoc Trinh
- Department of Microbiology and Infectious Diseases, Faculty of Veterinary Medicine, Vietnam National University of Agriculture, Hanoi 100000, Vietnam; (V.P.L.); (T.B.N.T.)
| | - Hye Kwon Kim
- Department of Microbiology, College of Natural Sciences, Chungbuk National University, Cheongju 28644, Republic of Korea;
| | - Jung-Ah Kang
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea; (M.-C.J.); (T.N.L.); (J.-A.K.)
| | - Jong-Woo Lim
- College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea; (J.-W.L.); (M.Y.)
| | - Minjoo Yeom
- College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea; (J.-W.L.); (M.Y.)
| | - Woonsung Na
- College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Republic of Korea;
| | - Jin-Ju Nah
- Foreign Animal Disease Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Republic of Korea; (J.-J.N.); (J.-D.C.); (H.-E.K.)
| | - Ji-Da Choi
- Foreign Animal Disease Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Republic of Korea; (J.-J.N.); (J.-D.C.); (H.-E.K.)
| | - Hae-Eun Kang
- Foreign Animal Disease Division, Animal and Plant Quarantine Agency, Gimcheon 39660, Republic of Korea; (J.-J.N.); (J.-D.C.); (H.-E.K.)
| | - Daesub Song
- College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea; (J.-W.L.); (M.Y.)
| | - Dae Gwin Jeong
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Republic of Korea; (M.-C.J.); (T.N.L.); (J.-A.K.)
- Department of Proteome Structural Biology, KRIBB School of Bioscience, University of Science and Technology, Daejeon 34141, Republic of Korea
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Pakotiprapha D, Kuhaudomlarp S, Tinikul R, Chanarat S. Bridging the Gap: Can COVID-19 Research Help Combat African Swine Fever? Viruses 2023; 15:1925. [PMID: 37766331 PMCID: PMC10536364 DOI: 10.3390/v15091925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/12/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
African swine fever (ASF) is a highly contagious and economically devastating disease affecting domestic pigs and wild boar, caused by African swine fever virus (ASFV). Despite being harmless to humans, ASF poses significant challenges to the swine industry, due to sudden losses and trade restrictions. The ongoing COVID-19 pandemic has spurred an unparalleled global research effort, yielding remarkable advancements across scientific disciplines. In this review, we explore the potential technological spillover from COVID-19 research into ASF. Specifically, we assess the applicability of the diagnostic tools, vaccine development strategies, and biosecurity measures developed for COVID-19 for combating ASF. Additionally, we discuss the lessons learned from the pandemic in terms of surveillance systems and their implications for managing ASF. By bridging the gap between COVID-19 and ASF research, we highlight the potential for interdisciplinary collaboration and technological spillovers in the battle against ASF.
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Affiliation(s)
| | | | | | - Sittinan Chanarat
- Department of Biochemistry and Center for Excellence in Protein and Enzyme Technology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
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Zhou L, Song J, Wang M, Sun Z, Sun J, Tian P, Zhuang G, Zhang A, Wu Y, Zhang G. Establishment of a Dual-Antigen Indirect ELISA Based on p30 and pB602L to Detect Antibodies against African Swine Fever Virus. Viruses 2023; 15:1845. [PMID: 37766252 PMCID: PMC10534977 DOI: 10.3390/v15091845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023] Open
Abstract
African swine fever (ASF) is an acute, virulent, and highly fatal infectious disease caused by the African swine fever virus (ASFV). There is no effective vaccine or diagnostic method to prevent and control this disease currently, which highlights the significance of ASF early detection. In this study, we chose an early antigen and a late-expressed antigen to co-detect the target antibody, which not only helps in early detection but also improves accuracy and sensitivity. CP204L and B602L were successfully expressed as soluble proteins in an Escherichia coli vector system. By optimizing various conditions, a dual-antigen indirect ELISA for ASFV antibodies was established. The assay was non-cross-reactive with antibodies against the porcine reproductive and respiratory syndrome virus, classical swine fever virus, porcine circovirus type 2, and pseudorabies virus. The maximum serum dilution for detection of ASFV-positive sera was 1:1600. The intra-batch reproducibility coefficient of variation was <5% and the inter-batch reproducibility coefficient of variation was <10%. Compared with commercial kits, the dual-antigen indirect ELISA had good detection performance. In conclusion, we established a detection method with low cost, streamlined production process, and fewer instruments. It provides a new method for the serological diagnosis of ASF.
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Affiliation(s)
- Lei Zhou
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (J.S.); (M.W.); (Z.S.); (J.S.); (P.T.); (G.Z.); (A.Z.)
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Jinxing Song
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (J.S.); (M.W.); (Z.S.); (J.S.); (P.T.); (G.Z.); (A.Z.)
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Mengxiang Wang
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (J.S.); (M.W.); (Z.S.); (J.S.); (P.T.); (G.Z.); (A.Z.)
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Zhuoya Sun
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (J.S.); (M.W.); (Z.S.); (J.S.); (P.T.); (G.Z.); (A.Z.)
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Junru Sun
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (J.S.); (M.W.); (Z.S.); (J.S.); (P.T.); (G.Z.); (A.Z.)
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Panpan Tian
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (J.S.); (M.W.); (Z.S.); (J.S.); (P.T.); (G.Z.); (A.Z.)
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Guoqing Zhuang
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (J.S.); (M.W.); (Z.S.); (J.S.); (P.T.); (G.Z.); (A.Z.)
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Angke Zhang
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (J.S.); (M.W.); (Z.S.); (J.S.); (P.T.); (G.Z.); (A.Z.)
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Yanan Wu
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (J.S.); (M.W.); (Z.S.); (J.S.); (P.T.); (G.Z.); (A.Z.)
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Gaiping Zhang
- International Joint Research Center of National Animal Immunology, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (L.Z.); (J.S.); (M.W.); (Z.S.); (J.S.); (P.T.); (G.Z.); (A.Z.)
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- Longhu Laboratory of Advanced Immunology, Zhengzhou 450046, China
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