1
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Wei Q, Gao Y, Liu Y, Li Q, Jin Q, Chai S, Song Y, Xing G, Zhang G. Development of a unique sandwich enzyme-linked immunosorbent assay based on monoclonal antibodies for the specific detection of the egg drop syndrome virus. Avian Pathol 2024; 53:101-105. [PMID: 38018364 DOI: 10.1080/03079457.2023.2279131] [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: 07/31/2023] [Accepted: 10/31/2023] [Indexed: 11/30/2023]
Abstract
RESEARCH HIGHLIGHTS A sandwich ELISA was developed to detect EDSV using the mAbs 5G4 and HRP-6G6.The sandwich ELISA maintained high specificity and sensitivity.The sandwich ELISA had equivalent consistency with real-time PCR assay.
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Affiliation(s)
- Qiang Wei
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, People's Republic of China
| | - Yanling Gao
- Department of Animal Husbandry Engineering, Henan Agricultural Vocational College, Zhengzhou, People's Republic of China
| | - Yunchao Liu
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, People's Republic of China
| | - Qingmei Li
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, People's Republic of China
| | - Qianyue Jin
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, People's Republic of China
| | - Shujun Chai
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, People's Republic of China
| | - Yapeng Song
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, People's Republic of China
| | - Guangxu Xing
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, People's Republic of China
| | - Gaiping Zhang
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, People's Republic of China
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, People's Republic of China
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2
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Wei F, Jiang X, He D, Diao Y, Tang Y. The isolation and characterizations of a duck adenovirus 1 causing Egg Drop Syndrome in ducks, China. Vet Microbiol 2023; 285:109873. [PMID: 37703613 DOI: 10.1016/j.vetmic.2023.109873] [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: 07/18/2023] [Revised: 09/03/2023] [Accepted: 09/08/2023] [Indexed: 09/15/2023]
Abstract
A fowl adenovirus variant designated as DAdV-JSXZ strain was isolated from the tissue specimen of fallopian tubes of a duck case, which was submitted from a 276-day-old Cherry valley breeding duck flock experienced egg-dropping syndromes in March 2022. Full-genome sequence of the DAdV-I JSXZ strain by next-generation sequencing revealed that the complete genome length of DAdV-JSXZ strain was 33,213 nucleotides and shared a high degree of nucleotide identity (97.0-99.4 %) with other DAdV-I reference strains. In pathogenicity studies, this isolated duck JSXZ strain reproduced similar egg-dropping symptoms in healthy breeding ducks, pathologic lesions of follicular hemorrhage, and the laid eggs in low fertilization and hatchability rates. Our research findings demonstrated that DAdV-I JSXZ strain was one of the causative agents of duck egg dropping syndrome in egg-laying ducks and could cause acute respiratory symptoms in ducklings.
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Affiliation(s)
- Feng Wei
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Tai'an, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong 271018, China
| | - Xiaoning Jiang
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Tai'an, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong 271018, China
| | - Dalin He
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Tai'an, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong 271018, China
| | - Youxiang Diao
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Tai'an, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong 271018, China.
| | - Yi Tang
- College of Animal Science and Technology, Shandong Agricultural University, 61 Daizong Street, Tai'an, Shandong Province 271018, China; Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an, Shandong 271018, China; Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai'an, Shandong 271018, China.
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3
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Lin Y, Zhang W, Xie J, Wang W, Xie Q, Li T, Shao H, Qin A, Wan Z, Ye J. Identification of novel B cell epitopes in Fiber-2 protein of duck adenovirus 3 and their application. AMB Express 2023; 13:62. [PMID: 37347456 DOI: 10.1186/s13568-023-01552-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 04/24/2023] [Indexed: 06/23/2023] Open
Abstract
Duck adenovirus 3 (DAdV-3), a newly emerged duck adenovirus, has resulted in significant economic losses to the duck industry across China since 2014. However, little is known about the B cell epitopes in major antigen of DAdV-3 and the serological approach for detection of DAdV-3 is not available. In this study, four monoclonal antibodies (mAbs) specific to Fiber-2 protein of DAdV-3 were first generated and designated as 2G10, 3D9, 5E6, and 6B12. Indirect immunofluorescence assay (IFA) showed that all of the mAbs reacted with the Fiber-2. Moreover, mAbs 2G10, 5E6, and 6B12 demonstrated good activity with Fiber-2 in Western blot. Notably, the Fiber-2 could be immunoprecipitated efficiently by mAb 3D9. Epitope mapping revealed that mAbs 2G10, 3D9, 5E6, and 6B12 recognized 397-429aa, 463-481aa, 67-99aa, and 1-66aa of Fiber-2, respectively. Besides, a novel sandwich ELISA for efficient detection of DAdV-3 was developed based on mAb 3D9 and horseradish peroxidase (HRP) conjugated mAb 3D9. The sandwich ELISA only reacted with DAdV-3 but not with other duck-associated viruses. The limit of detection of the ELISA was 6.25 × 103 TCID50/mL. Overall, the mAbs generated laid the foundation for elucidating the critical role of Fiber-2 in mediating infection and pathogenesis, and the sandwich ELISA approach established here provided efficient and rapid serological diagnostic tool for DAdV-3.
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Affiliation(s)
- Yun Lin
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Wenyuan Zhang
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Jing Xie
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Weikang Wang
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Quan Xie
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Tuofan Li
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Hongxia Shao
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Aijian Qin
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Zhimin Wan
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
- Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China.
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
| | - Jianqiang Ye
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
- Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China.
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
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4
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A novel monoclonal antibody efficiently blocks the infection of duck adenovirus 3 by targeting Fiber-2. Vet Microbiol 2023; 277:109635. [PMID: 36563583 DOI: 10.1016/j.vetmic.2022.109635] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/07/2022] [Accepted: 12/11/2022] [Indexed: 12/15/2022]
Abstract
Duck adenovirus 3 (DAdV-3), identified as the causative agent of a disease characterized by swelling and hemorrhage of liver and kidney, has caused substantial economic losses to duck industry in China. However, the neutralizing epitopes and the infection mechanism of DAdV-3 have not been extensively elucidated. In this study, a novel monoclonal antibody (mAb) targeting Fiber-2 protein of DAdV-3 was generated and designated as mAb 3E7. Indirect immunofluorescence assay showed that mAb 3E7 specifically reacted with the Fiber-2 in LMH cells transfected with pcDNA3.1-Fiber-2 or infected with DAdV-3. Moreover, mAb 3E7 could immunoprecipitate the Fiber-2 and efficiently inhibit the infection of DAdV-3 in vitro. Further epitope mapping revealed mAb 3E7 recognized the epitope 108LALGDGLE115 in Fiber-2, which was highly conserved among DAdV-3 strains. These findings not only identified a novel neutralizing epitope in Fiber-2, but also paved the way for further elucidating the vital roles of Fiber-2 in the infection and pathogenesis of DAdV-3.
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5
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Shao H, Zhang W, Lin Y, Xie J, Ren D, Xie Q, Li T, Wan Z, Qin A, Ye J. Novel monoclonal antibodies against Fiber-1 of duck adenovirus 3 and their B cell epitopes. Front Vet Sci 2022; 9:1003262. [PMID: 36311658 PMCID: PMC9597451 DOI: 10.3389/fvets.2022.1003262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 09/27/2022] [Indexed: 11/04/2022] Open
Abstract
Recently, the outbreak of the infection of Duck adenovirus 3 (DAdV-3) characterized by swelling and hemorrhagic liver and kidney has caused huge economic losses to duck industry since 2014 in China. To date, the B cell epitopes in the Fiber-1 protein and the underlying infection mechanism of DAdV-3 have not been investigated. In this study, the recombinant Fiber-1 protein was first expressed in E. coli and six novel monoclonal antibodies (mAbs) against Fiber-1 were generated, designated as 1D8, 1E6, 3G6, 4G1, 4G2, and 6F10, respectively. Moreover, mAbs 3G6 and 6F10 could efficiently immunoprecipitate the Fiber-1 in LMH cells infected with DAdV-3 or transfected with pcDNA3.1-Fiber-1. Notably, mAbs 3G6 and 4G2 also showed certain neutralizing activity against DAdV-3 infection in vitro. Epitopes mapping revealed that the B cell epitope recognized by 6F10, 3G6, 4G1, 1D8, 4G2, and 1E6 was located in 34-66aa, 67-99aa, 64-296aa, 297-329aa, 330-362aa, and 363-395aa, respectively. Sequence alignments further found that the six epitopes recognized by these mAbs were highly conserved among different DAdV-3 isolates. The generated mAbs specific to Fiber-1 and their defined epitopes provide powerful tools for establishing rapid and efficient diagnostics for the detection of DAdV-3 and pave the way for further studying on the critical role of Fiber-1 in mediating the infection of DAdV-3.
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Affiliation(s)
- Hongxia Shao
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, China,Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Wenyuan Zhang
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, China,Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Yun Lin
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, China,Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Jing Xie
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, China,Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Dan Ren
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, China,Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Quan Xie
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, China,Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Tuofan Li
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, China,Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Zhimin Wan
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, China,Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Aijian Qin
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, China,Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China,*Correspondence: Aijian Qin
| | - Jianqiang Ye
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, China,Jiangsu Co-innovation Centre for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China,Jianqiang Ye
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Chen H, Li M, Liu S, Kong J, Li D, Feng J, Xie Z. Whole-genome sequence and pathogenicity of a fowl adenovirus 5 isolated from ducks with egg drop syndrome in China. Front Vet Sci 2022; 9:961793. [PMID: 36032289 PMCID: PMC9412081 DOI: 10.3389/fvets.2022.961793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 07/26/2022] [Indexed: 11/18/2022] Open
Abstract
Recently, fowl adenovirus (FAdV) infection has become widespread in poultry in China and may be asymptomatic or associated with clinical and other pathological conditions. In 2017, a severe egg drop syndrome outbreak in breeder ducks (45 weeks old) occurred in eastern Shandong province in China. The egg production rate declined from 93 to 41%, finally increasing to ~80% (did not reach complete recovery). The presence of the virus was confirmed by FAdV-5 specific PCR assay, and it was designated strain WHRS. Furthermore, next-generation and Sanger sequencing of genomic fragments yielded a 45,734 bp genome. Phylogenetic analysis showed that the genomic sequence of the WHRS strain was most homologous-(99.95%) to that of the FAdV-5 17/25,702 and 14/24,408 strain, sharing 32.1~53.4% similarity with other FAdV strains in the genus Aviadenovirus. Infected duck embryos died within 3–5 dpi, but no deaths occurred in the infected ducks. Strain WHRS could cause egg drop syndrome in ducks, accompanied by clinical signs similar to those of natural infections. Overall, strain WHRS is lethal to duck embryos and causes egg drop syndrome in breeder ducks.
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Affiliation(s)
- Hao Chen
- College of Life Science and Technology, Guangxi University, Nanning, China
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, China
- College of Life Science, Qufu Normal University, Qufu, China
- Hao Chen
| | - Meng Li
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, China
| | - Siyu Liu
- College of Life Science, Qufu Normal University, Qufu, China
| | - Juan Kong
- College of Life Science, Qufu Normal University, Qufu, China
| | - Dan Li
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, China
| | - Jiaxun Feng
- College of Life Science and Technology, Guangxi University, Nanning, China
| | - Zhixun Xie
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, China
- *Correspondence: Zhixun Xie
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Wang L, Zhang P, Huang B, Wang M, Tian H, Liu P, Liu W, Tian K. Fiber Protein Produced in Escherichia coli as a Subunit Vaccine Candidate Against Egg-Drop Syndrome 76. Front Vet Sci 2022; 9:819217. [PMID: 35280142 PMCID: PMC8913573 DOI: 10.3389/fvets.2022.819217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2021] [Accepted: 01/13/2022] [Indexed: 11/28/2022] Open
Abstract
The egg-drop syndrome ‘76 (EDS ‘76) caused by duck atadenovirus A (DAdV-1) infection in laying hens leads to the decrease in egg production, causing heavy economic losses in the poultry industry; thus, vaccines with high safety and immunogenicity are needed. In this study, the DAdV-1 fiber protein expressed in Escherichia coli with codon optimization showed the hemagglutination (HA) titer of 13 log2 after purification (0.6 mg/mL). Compared with inactivated EDS ‘76 vaccine, the specific pathogen-free chickens immunized with 0.4 mL fiber protein (HA titer of 11 log2) induced an equal level of HA inhibition (HI) titer and neutralizing antibodies. Meanwhile, after immunization with fiber protein, the lowest HI titer that could provide the effect to reduce egg production rate in laying hens after the challenge was 7 log2. Moreover, fiber protein with an HA titer of 7 log2 could induce an HI titer no <7 log2 in laying hens, which was equal to or higher than the lowest HI titer (7 log2) that could reduce egg production against DAdV-1 infection significantly, indicating that it is economically feasible for vaccine development. Importantly, the HI antibodies maintained at a high level up to 180 days postimmunization contribute to the clinical application of the vaccine candidate. Overall, the fiber protein produced in E. coli is an effective subunit vaccine candidate in EDS ‘76 control for its high immunogenicity and protection in chickens.
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Affiliation(s)
- Linguo Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- National Research Center for Veterinary Medicine, Luoyang, China
| | - Pantao Zhang
- National Research Center for Veterinary Medicine, Luoyang, China
| | - Baicheng Huang
- National Research Center for Veterinary Medicine, Luoyang, China
| | - Mengyue Wang
- National Research Center for Veterinary Medicine, Luoyang, China
| | - Hui Tian
- National Research Center for Veterinary Medicine, Luoyang, China
| | - Peng Liu
- National Research Center for Veterinary Medicine, Luoyang, China
| | - Wujie Liu
- National Research Center for Veterinary Medicine, Luoyang, China
- *Correspondence: Wujie Liu
| | - Kegong Tian
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
- National Research Center for Veterinary Medicine, Luoyang, China
- Kegong Tian
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8
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Choi YR, Kim SW, Shang K, Park JY, Zhang JF, Jang HK, Wei B, Cha SY, Kang M. Avian Reoviruses From Wild Birds Exhibit Pathogenicity to Specific Pathogen Free Chickens by Footpad Route. Front Vet Sci 2022; 9:844903. [PMID: 35280152 PMCID: PMC8907544 DOI: 10.3389/fvets.2022.844903] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 01/31/2022] [Indexed: 11/13/2022] Open
Abstract
Avian reoviruses (ARVs) are ubiquitous in domestic poultry with 80% of them being non-pathogenic and they are frequently found in clinically healthy birds. ARVs have also been known to be the etiological agents of viral arthritis (VA), tenosynovitis, myocarditis, runting-stunting syndrome (RSS), and respiratory and enteric disease in chickens. Significant economic losses during the process of poultry husbandry are due, in part, to unmitigated ARV infections throughout the poultry industry. Recently, many isolates shared genetic similarities between those recovered from wild birds and those recovered from poultry. One explanation may be that there is a degree of spillover and spillback of ARVs between the two groups. However, studies on the role of wild birds in the epidemiology and pathogenicity of ARVs are insufficient. Here, we describe the pathogenicity in specific pathogen-free (SPF) chickens of ARV originating from wild birds. The challenge experiment was conducted in six groups including a negative control group, a positive control group (reference strain of S1133), and four groups (A15-157, A18-13, A18-205, A19-106) infected with ARVs from wild birds. The 7-day-old SPF chickens were inoculated with 106TCID50 ARV to evaluate the clinical signs, changes in weight gain, gross lesions, histological changes, virus replication, and serum antibody levels. The peak of clinical signs was from 3 to 5 days post infection (dpi). In addition, the death of one chicken was found in the group infected with the A18-13 isolate. Reduced body weight was also found in chickens infected with ARVs from wild birds compared to the negative control group. All the ARVs infection groups showed noticeable swelling of the footpad. In addition, ARVs were detected in the bursa, tendon, and hock joint by reverse transcription-polymerase chain reaction (RT-PCR) in all infected groups at 5 and 15 dpi. Histopathological observations revealed acute inflammatory responses on the synovium covering the joint surfaces (arthritis) and tendon sheaths (tenosynovitis), as well as bursa atrophy and lymphocyte depletion. The analysis of the humoral response was performed by ELISA assay, and chickens infected with ARVs showed seroconverted. In conclusion, this study described the typical severe disease of acute VA and tenosynovitis in SPF chickens infected with ARVs derived from wild birds. This study confirmed the pathogenicity of ARVs infection in SPF chickens for the first time, and these results enrich our understanding of the pathogenicity of ARVs derived from wild birds.
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9
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Chen C, Wan C, Shi S, Cheng L, Chen Z, Fu G, Liu R, Zhu C, Huang Y. Development and application of a fiber2 protein-based indirect ELISA for detection of duck adenovirus 3. Mol Cell Probes 2019; 48:101447. [PMID: 31518643 DOI: 10.1016/j.mcp.2019.101447] [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: 07/04/2019] [Revised: 08/28/2019] [Accepted: 09/10/2019] [Indexed: 10/26/2022]
Abstract
Duck adenovirus 3 (DAdV-3) is a newly identified duck adenovirus that has recently emerged in China. The incidence of duck infection caused by this virus is very high, with very large economic losses to the poultry industry. Thus, there is an urgent need for a serological assay for the specific detection of DAdV-3. To this end, prokaryotic expression of the fiber2 protein of DAdV-3 was used as a coating antigen to establish an indirect enzyme linked immunosorbent assay (ELISA) method for the specific detection of antibodies against DAdV-3. The method was found to be specific, repeatable and more sensitive than the agarose gel precipitation test (AGP). This indirect ELISA method based on the recombinant fiber2 protein may be used for the clinical detection of DAdV-3 infection and for monitoring antibody levels after vaccine immunization and is of great significance for the effective prevention and control of the disease.
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Affiliation(s)
- Cuiteng Chen
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Provincial Key Laboratory for Avian Diseases Control, Prevention/Fujian Animal Diseases Control Technology Development Center, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, People's Republic of China
| | - Chunhe Wan
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Provincial Key Laboratory for Avian Diseases Control, Prevention/Fujian Animal Diseases Control Technology Development Center, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, People's Republic of China.
| | - Shaohua Shi
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Provincial Key Laboratory for Avian Diseases Control, Prevention/Fujian Animal Diseases Control Technology Development Center, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, People's Republic of China
| | - Longfei Cheng
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Provincial Key Laboratory for Avian Diseases Control, Prevention/Fujian Animal Diseases Control Technology Development Center, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, People's Republic of China
| | - Zhen Chen
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Provincial Key Laboratory for Avian Diseases Control, Prevention/Fujian Animal Diseases Control Technology Development Center, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, People's Republic of China
| | - Guanghua Fu
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Provincial Key Laboratory for Avian Diseases Control, Prevention/Fujian Animal Diseases Control Technology Development Center, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, People's Republic of China
| | - Rongchang Liu
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Provincial Key Laboratory for Avian Diseases Control, Prevention/Fujian Animal Diseases Control Technology Development Center, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, People's Republic of China
| | - Chunhua Zhu
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Provincial Key Laboratory for Avian Diseases Control, Prevention/Fujian Animal Diseases Control Technology Development Center, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, People's Republic of China
| | - Yu Huang
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Provincial Key Laboratory for Avian Diseases Control, Prevention/Fujian Animal Diseases Control Technology Development Center, Fujian Academy of Agricultural Sciences, Fuzhou, 350013, People's Republic of China.
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10
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Song Y, Wei Q, Liu Y, Bai Y, Deng R, Xing G, Zhang G. Development of novel subunit vaccine based on truncated fiber protein of egg drop syndrome virus and its immunogenicity in chickens. Virus Res 2019; 272:197728. [PMID: 31442468 DOI: 10.1016/j.virusres.2019.197728] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/07/2019] [Accepted: 08/19/2019] [Indexed: 10/26/2022]
Abstract
Egg-drop syndrome virus (EDSV) is an avian adenovirus that causes markedly decrease in egg production and in the quality of the eggs when it infects chickens. In this report, we engineered truncated fiber protein containing the entire knob domain and part of the shaft region as a vaccine candidate. The protein was obtained in the soluble fraction in Escherichia coli (E. coli), and expression level after nickel-affinity purification was 126 mg/L. By means of multiple characterization methods, it is demonstrated that the recombinant protein retains the native trimeric structure. A single inoculation with the structure-stabilized recombinant protein, even at the lowest dose of 2 μg, stimulated hemagglutination inhibition (HI) antibody responses in chickens, for at least 16 weeks. Neutralizing titers in sera from the protein immunized groups was similar to that of inactivated vaccine immunized group. The lymphocyte proliferation response and cytokine secretion were also induced in immunized SPF chickens. In addition, immunization with the fiber protein also significantly reduced the viral load in the liver. Taken together, these results suggest the truncated fiber protein as an effective single dose, long lasting and rapidly effective vaccine to protect against EDSV.
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Affiliation(s)
- Yapeng Song
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China; College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China
| | - Qiang Wei
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - Yunchao Liu
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - Yilin Bai
- College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Ruiguang Deng
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - Guangxu Xing
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China
| | - Gaiping Zhang
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, 450002, China; College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu Province, 225009, China.
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11
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Wang XP, Qi XF, Yang B, Chen SY, Wang JY. RNA-Seq analysis of duck embryo fibroblast cell gene expression during the early stage of egg drop syndrome virus infection. Poult Sci 2019; 98:404-412. [PMID: 30690613 DOI: 10.3382/ps/pey318] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Egg drop syndrome virus (EDSV), a member of the family Adenoviridae and an economically important pathogen with a broad host range, leads to markedly decreased egg production. However, the molecular mechanism underlying the host-EDSV interaction remains unclear. Here, we performed high-throughput RNA sequencing (RNA-Seq) to study the dynamic changes in host gene expression at 6, 12, and 24 hours post-infection in duck embryo fibroblasts (DEFs) infected with EDSV. Atotal of 441 differentially expressed genes (DEGs) were identified after EDSV infection. Gene Ontology category and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis revealed that these DEGs were associated with multiple biological functions, including signal transduction, host immunity, virus infection, cell apoptosis, cell proliferation, and pathogenicity-related and metabolic process signaling pathways. We screened and identified 12 DEGs for further examination by using qRT-PCR. The qRT-PCR and RNA-Seq results were highly consistent. This study analyzed viral infection and host immunity induced by EDSV infection from a novel perspective, and the results provide valuable information regarding the mechanisms underlying host-EDSV interactions, which will prove useful for the future development of antiviral drugs or vaccines for poultry, thus benefiting the entire poultry industry.
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Affiliation(s)
- X P Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - X F Qi
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - B Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - S Y Chen
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - J Y Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi 712100, China
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12
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Marques MVR, Marin SY, Couto RDM, Ecco R, Resende M, Martins NRDS. Fatal necrotic tracheitis by Aviadenovirus in captive Alagoas curassows (Pauxi mitu) extinct from the wild. Avian Pathol 2019; 48:278-283. [PMID: 30663340 DOI: 10.1080/03079457.2019.1571559] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Extinct from nature, captive young Alagoas curassows (Pauxi mitu) were found agonizing or dead with respiratory disease. Intranuclear inclusion bodies were found in the epithelia of the trachea, associated with marked necrotic tracheitis. An Aviadenovirus was isolated in chicken eggs and characterized genetically with 99% identity to the fowl Aviadenovirus A, as based on the hexon protein gene. This is the first report of respiratory disease caused by Aviadenovirus in any cracid species in Brazil, recommending for stricter biosecurity in the conservation premises. RESEARCH HIGHLIGHTS Fatal tracheitis in curassows extinct from nature was associated with Aviadenovirus A. Seven-month-old Alagoas curassows (Aves: Cracidae) died with haemorrhagic tracheitis. Aviadenovirus A with 99% identity to fowl adenovirus 1 was detected in dead curassows. Fatal tracheitis by Aviadenovirus was described in Pauxi mitu (Aves: Cracidae).
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Affiliation(s)
- Marcus Vinicius Romero Marques
- a Avian Diseases, Department of Preventive Veterinary Medicine, Veterinary College , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - Sandra Yuliet Marin
- a Avian Diseases, Department of Preventive Veterinary Medicine, Veterinary College , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - Rodrigo de Macedo Couto
- b Pathology Section, Department of Clinics and Surgery, Veterinary College , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - Roselene Ecco
- b Pathology Section, Department of Clinics and Surgery, Veterinary College , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - Mauricio Resende
- a Avian Diseases, Department of Preventive Veterinary Medicine, Veterinary College , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
| | - Nelson Rodrigo da Silva Martins
- a Avian Diseases, Department of Preventive Veterinary Medicine, Veterinary College , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , MG , Brazil
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13
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Wan C, Chen C, Cheng L, Fu G, Shi S, Liu R, Chen H, Fu Q, Huang Y. Development of a TaqMan-based real-time PCR for detecting duck adenovirus 3. J Virol Methods 2018; 261:86-90. [PMID: 30114433 DOI: 10.1016/j.jviromet.2018.08.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 07/19/2018] [Accepted: 08/12/2018] [Indexed: 01/02/2023]
Abstract
Recently, a novel duck adenovirus (designated as duck adenovirus 3, DAdV-3) was discovered in Muscovy ducks, China. Here, we developed a TaqMan-based real-time PCR assay (qPCR) for the detection of DAdV-3 infection. After the optimization of the qPCR conditions, the lower limit of detection for DAdV-3 infection was 40.9 copies/μl. No cross-reactivity was observed with other duck-derived pathogens. Intra- and inter-assay variability was less than 2.30%. DAdV-3 was detected in embryos and newly hatched ducklings by qPCR assay, the findings provided evidence of possible vertical transmission of DAdV-3. The developed qPCR analysis showed high specificity, sensitivity, and reproducibility, thereby indicating that it can be used in future investigations on the pathogenesis and epidemiology of DAdV-3.
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Affiliation(s)
- Chunhe Wan
- Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Center, Institute of Animal Husbandry and Veterinary Medicine of Fujian Academy of Agricultural Sciences, Fuzhou 350013, China.
| | - Cuiteng Chen
- Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Center, Institute of Animal Husbandry and Veterinary Medicine of Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Longfei Cheng
- Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Center, Institute of Animal Husbandry and Veterinary Medicine of Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Guanghua Fu
- Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Center, Institute of Animal Husbandry and Veterinary Medicine of Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Shaohua Shi
- Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Center, Institute of Animal Husbandry and Veterinary Medicine of Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Rongchang Liu
- Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Center, Institute of Animal Husbandry and Veterinary Medicine of Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Hongmei Chen
- Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Center, Institute of Animal Husbandry and Veterinary Medicine of Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Qiuling Fu
- Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Center, Institute of Animal Husbandry and Veterinary Medicine of Fujian Academy of Agricultural Sciences, Fuzhou 350013, China
| | - Yu Huang
- Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention/Fujian Animal Diseases Control Technology Development Center, Institute of Animal Husbandry and Veterinary Medicine of Fujian Academy of Agricultural Sciences, Fuzhou 350013, China.
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14
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Wang X, Qi X, Yang B, Chen S, Wang J. Autophagy Benefits the Replication of Egg Drop Syndrome Virus in Duck Embryo Fibroblasts. Front Microbiol 2018; 9:1091. [PMID: 29896171 PMCID: PMC5986908 DOI: 10.3389/fmicb.2018.01091] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 05/07/2018] [Indexed: 12/19/2022] Open
Abstract
Egg drop syndrome virus (EDSV) is an economically important pathogen with a broad host range, and it causes disease that leads to markedly decreased egg production. Although EDSV is known to induce apoptosis in duck embryo fibroblasts (DEFs), the interaction between EDSV and its host needs to be further researched. Here, we provide the first evidence that EDSV infection triggers autophagy in DEFs through increases in autophagosome-like double-membrane vesicles, the conversion of LC3-I to LC3-II, and LC3 colocalization with viral hexon proteins. Conversely, P62/SQSTM1 degradation, LC3-II turnover, and colocalization of LAMP and LC3 confirmed that EDSV infection triggers complete autophagy. Furthermore, we demonstrated that inhibition of autophagy by chloroquine (CQ) and 3-methyladenine (3MA) or RNA interference targeting ATG-7 decreased the yield of EDSV progeny. In contrast, induction of autophagy by rapamycin increased the EDSV progeny yield. In addition, we preliminarily demonstrated that the class I phosphoinositide 3-kinase (PI3K)/Akt/mTOR pathway contributes to autophagic induction following EDSV infection. Altogether, these finding lead us to conclude that EDSV infection induces autophagy, which benefits its own replication in host cells. These findings provide novel insights into EDSV-host interactions.
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Affiliation(s)
- Xueping Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Xuefeng Qi
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Bo Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Shuying Chen
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Jingyu Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
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15
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Zheney M, Kaziyev Z, Kassenova G, Zhao L, Liu W, Liang L, Li G. Real-time fluorescence loop-mediated isothermal amplification assay for direct detection of egg drop syndrome virus. BMC Vet Res 2018; 14:49. [PMID: 29439721 PMCID: PMC5811957 DOI: 10.1186/s12917-018-1364-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 01/24/2018] [Indexed: 01/03/2023] Open
Abstract
Background Egg drop syndrome (EDS), caused by the adenovirus “egg drop syndrome virus” (EDSV) causes severe economic losses through reduced egg production in breeder and layer flocks. The diagnosis of EDSV has been done by molecular tools since its complete genome sequence was identified. In order to enhance the capabilities of the real-time fluorescence loop-mediated isothermal amplification (RealAmp) assay, we aimed to apply the method for direct detection of the EDSV without viral DNA extraction. In order to detect the presence of the EDSV DNA, three pairs of primers were designed, from the conserved region of fiber gene of the EDSV. Results For our assay, test and control samples were directly used in the reaction mixture in 10-fold serial dilution. The target DNA was amplified at 65 °C, which yield positive results in a relatively short period of 40–45 min. The method reported in this study is highly sensitive as compared to polymerase chain reaction (PCR) and showed no sign of cross-reactivity or false positive results. The RealAmp accomplished specific identification of EDSV among a variety of poultry disease viruses. Conclusions The direct RealAmp can be used to detect the presence of EDSV. As our result showed, the RealAmp method could be suitable for the direct detection of other DNA viruses.
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Affiliation(s)
- Makay Zheney
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China.,Faculty of Veterinary, Kazakh National Agrarian University, Almaty, 050013, Republic of Kazakhstan
| | - Zhambul Kaziyev
- Faculty of Veterinary, Kazakh National Agrarian University, Almaty, 050013, Republic of Kazakhstan
| | - Gulmira Kassenova
- Faculty of Veterinary, Kazakh National Agrarian University, Almaty, 050013, Republic of Kazakhstan
| | - Lingna Zhao
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China
| | - Wei Liu
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China
| | - Lin Liang
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China
| | - Gang Li
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, People's Republic of China.
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16
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The role of hexon in egg drop syndrome virus (EDSV) inducing apoptosis in duck embryo fibroblast cells. Res Vet Sci 2017; 114:395-400. [DOI: 10.1016/j.rvsc.2017.07.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 05/26/2017] [Accepted: 07/16/2017] [Indexed: 11/18/2022]
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17
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Zhang X, Zhong Y, Zhou Z, Liu Y, Zhang H, Chen F, Chen W, Xie Q. Molecular characterization, phylogeny analysis and pathogenicity of a Muscovy duck adenovirus strain isolated in China in 2014. Virology 2016; 493:12-21. [PMID: 26989945 DOI: 10.1016/j.virol.2016.03.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 02/26/2016] [Accepted: 03/07/2016] [Indexed: 11/28/2022]
Abstract
This study aimed to characterize a novel adenovirus (AdV) isolated from diseased Muscovy ducks in China. After the AdV was successfully propagated in duck embryo fibroblasts, the morphological and physicochemical properties of the virions were studied by electron microscopy and different tests. The results of the analyses were in conformity with AdV properties. The full genome sequence was determined and analyzed. The new isolate (named CH-GD-12-2014) shared over 91% sequence identity with duck AdV-2 representing the species Duck aviadenovirus B. The most important distinguishing feature between the two DAdV strains was the presence of a second fiber gene in the Chinese isolate. Phylogeny reconstruction confirmed the affiliation of the virus with goose and duck AdVs in the genus Aviadenovirus. Experimental infection resulted in embryo death, and intramuscular inoculation provoked morbidity and mortality among ducks and chickens.
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Affiliation(s)
- Xinheng Zhang
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong 510642, PR China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510642, PR China
| | - Yangjin Zhong
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong 510642, PR China
| | - Zhenhai Zhou
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong 510642, PR China
| | - Yang Liu
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong 510642, PR China
| | - Huanmin Zhang
- USDA, Agriculture Research Service, Avian Disease and Oncology Laboratory, East Lansing, MI 48823, USA
| | - Feng Chen
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong 510642, PR China
| | - Weiguo Chen
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong 510642, PR China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510642, PR China
| | - Qingmei Xie
- College of Animal Science, South China Agricultural University & Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Guangzhou 510642, PR China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong 510642, PR China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510642, PR China.
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18
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Huang J, Tan D, Wang Y, Liu C, Xu J, Wang J. Egg drop syndrome virus enters duck embryonic fibroblast cells via clathrin-mediated endocytosis. Virus Res 2015. [DOI: 10.1016/j.virusres.2015.07.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Guo Y, Gao M, Ma B, Sheng Q, Wang Q, Liu D, Wang J. A novel monoclonal antibody against the constant region of goose immunoglobulin light chain. Monoclon Antib Immunodiagn Immunother 2014; 33:121-5. [PMID: 24746153 DOI: 10.1089/mab.2013.0071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A monoclonal antibody (MAb) against the antigenic determinant of the constant region of goose immunoglobulin light chain (GoIgCL) was produced and characterized for the first time here. Goose immunoglobulin (Ig) in serum was purified by immunoaffinity chromatography and the resulting protein was used as immunogen to immunize BALB/c mice. At the same time, the GoIgCL gene was expressed and purified as the screening antigen for selecting MAb against GoIgCL. One hybridoma that produces antibodies against GoIgCL was selected by indirect ELISA. Then the characterization of the MAb was analyzed by ELISA, Western blot, and flow cytometry. It was found to be IgG1 with κ light chain; the MAB has high specificity to Ig in goose serum, bile, and B lymphocytes from peripheral blood, reacts only with the light chain of goose Ig, and can distinguish Ig from other birds. Therefore, the MAb generated in this study can be used as a specific reagent for detection of goose disease-specific antibodies and as a powerful tool for basic immunology research on geese.
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Affiliation(s)
- Yongli Guo
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northeast Agricultural University , Harbin, China
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20
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Full Genome Sequence of Egg Drop Syndrome Virus Strain FJ12025 Isolated from Muscovy Duckling. GENOME ANNOUNCEMENTS 2013; 1:1/4/e00623-13. [PMID: 23969050 PMCID: PMC3751605 DOI: 10.1128/genomea.00623-13] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Egg drop syndrome virus (EDSV) strain FJ12025 was isolated from a 9-day-old Muscovy duckling. The results of the sequence showed that the genome of strain FJ12025 is 33,213 bp in length, with a G+C content of 43.03%. When comparing the genome sequence of strain FJ12025 to that of laying duck original strain AV-127, we found 50 single-nucleotide polymorphisms (SNPs) between the two viral genome sequences. A genomic sequence comparison of FJ12025 and AV-127 will help to understand the phenotypic differences between the two viruses.
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