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Yu Z, Shao Y, Shi D, Dong Y, Zhang Y, Cheng F, Wang Z, Tu J, Qi K, Song X. A rapid, ultrasensitive, and highly specific method for detecting fowl adenovirus serotype 4 based on the LAMP-CRISPR/Cas12a system. Poult Sci 2024; 103:104048. [PMID: 39029255 PMCID: PMC11315145 DOI: 10.1016/j.psj.2024.104048] [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: 05/18/2024] [Revised: 06/22/2024] [Accepted: 06/25/2024] [Indexed: 07/21/2024] Open
Abstract
Fowl adenovirus serotype 4 (FAdV-4) is the causative agent of hydropericardium hepatitis syndrome in chickens, which causes severe economic impact to the poultry industry. A simple, swift and reliable detection is crucial for timely identification of FAdV-4 infection, promoting effective viral prevention and control measures. Herein, the clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 12a (Cas12a) system detection platform based on loop-mediated isothermal amplification (LAMP) was studied. The CRISPR RNA (crRNA) and LAMP primers were designed and screened based on the highly conserved region of the FAdV-4 hexon gene. The parameters were then optimized individually to achieve the ideal reaction performance. The platform could lead visual detection of FAdV-4 to achieve as low as 1 copy in less than 40 min without the need for specialized instrumentation or complex equipment. Moreover, it was greatly specific, and did not cross-react with other common avian viruses. Following the validation of 30 clinical samples of suspected FAdV-4 infection, the results LAMP-CRISPR/Cas12a method generated showed fully concordance with which of the gold standard quantitative real-time PCR. To summarize, this study presented a novel, swift, expedient and inexpensive detection platform for FAdV-4, which is beneficial to viral inchoate diagnosis and point-of-care testing.
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Affiliation(s)
- Zhaorong Yu
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural, University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Ying Shao
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural, University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Daoming Shi
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural, University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Yanli Dong
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural, University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Yu Zhang
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural, University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Fanyu Cheng
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural, University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Zhenyu Wang
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural, University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Jian Tu
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural, University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Kezong Qi
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural, University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Xiangjun Song
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural, University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China.
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Liu S, Dong X, Lei B, Zhang W, Wang X, Yuan W, Zhao K. A novel subunit vaccine based on Fiber1/2 knob domain provides full protection against fowl adenovirus serotype 4 and induces stronger immune responses than a Fiber2 subunit vaccine. Poult Sci 2024; 103:103888. [PMID: 38851180 PMCID: PMC11208943 DOI: 10.1016/j.psj.2024.103888] [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: 04/11/2024] [Revised: 05/12/2024] [Accepted: 05/18/2024] [Indexed: 06/10/2024] Open
Abstract
Outbreaks of hepatitis-hydropericardium syndrome (HHS) caused by fowl adenovirus serotype 4 (FAdV-4) have resulted in huge economic losses to the poultry industry in China since 2015. However, commercially available vaccines against the FAdV-4 infection remain scarce. In our study, subunit vaccine candidates derived from the bacterially expressed recombinant Fiber1 knob domain and Fiber2 knob domain fusion protein (termed as Fiber1/2 knob subunit vaccine) and Fiber2 protein (termed as Fiber2 subunit vaccine) of the FAdV-4 SDSX strain were developed. Immunogenicity evaluation showed that the Fiber1/2 knob subunit vaccine induced the production of antibodies at 7 d postvaccination (dpv), earlier than the Fiber2 subunit vaccine. Moreover, the neutralizing antibody level of the Fiber1/2 subunit vaccine group was higher than the Fiber2 subunit vaccine group, showing significant differences at 14, 21, and 28 dpv. Immune protection test results revealed that both Fiber1/2 knob subunit and Fiber2 subunit vaccines could protect chickens from death against FAdV-4 challenge, although the weight of chickens in the Fiber1/2 knob subunit vaccine group decreased less. Furthermore, analysis of plasma Glutamic oxaloacetic transaminase (AST) and blood glutamic pyruvic transaminase (ALT) levels suggested that the Fiber1/2 subunit vaccine can significantly inhibit liver damage caused by FAdV-4 infection and is more effective in blocking the pathogenicity of FAdV-4 in target organs. In addition, the Fiber1/2 knob subunit vaccine further reduced the viral load in different tissues and virus shedding in chickens than the Fiber2 subunit vaccine. Overall, the Fiber1/2 knob subunit vaccine was more effective than the Fiber2 subunit vaccine. These findings lay the foundation for the development of more effective FAdV-4 subunit vaccines.
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Affiliation(s)
- Shuaifeng Liu
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Xiaofeng Dong
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Baishi Lei
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Wuchao Zhang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Xiangqin Wang
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, China
| | - Wanzhe Yuan
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, China; Hebei Veterinary Biotechnology Innovation Center, Hebei Agricultural University, Baoding, China
| | - Kuan Zhao
- College of Veterinary Medicine, Hebei Agricultural University, Baoding, China; Hebei Veterinary Biotechnology Innovation Center, Hebei Agricultural University, Baoding, China.
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Luan J, Song C, Liu Y, He R, Guo R, Cui Q, Jiang C, Li X, Hao K, Stewart AF, Fu J, Zhang Y, Wang H. Seamless site-directed mutagenesis in complex cloned DNA sequences using the RedEx method. Nat Protoc 2024:10.1038/s41596-024-01016-9. [PMID: 39009664 DOI: 10.1038/s41596-024-01016-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 05/01/2024] [Indexed: 07/17/2024]
Abstract
Seamless site-directed mutagenesis is an important technique for studying protein functions, tuning enzyme catalytic activities and modifying genetic elements in multiple rounds because it can insert, delete or substitute nucleotides, DNA segments or even entire genes at the target site without introducing any unwanted change. To facilitate seamless site-directed mutagenesis in large plasmids and bacterial artificial chromosomes (BACs) with repetitive sequences, we recently developed the RedEx strategy. Compared with previous methods, our approach achieves the recovery of correct recombinants with high accuracy by circumventing unwanted recombination between repetitive sequences. RedEx readily yields more than 80% accuracy in seamless DNA insertion and deletion in large multimodular polyketide synthase gene clusters, which are among the most difficult targets due to the large number of repetitive DNA sequences in modules encoding almost identical enzymes. Here we present the RedEx method by describing in detail the seamless site-directed mutagenesis in a BAC vector. Overall, the process includes three parts: (1) insertion of the RedEx cassette containing the desired mutation together with selection-counterselection markers flanked by unique restriction sites and 20-bp overlapping sequences into the target site by recombineering, (2) removal of the selection-counterselection markers in the BAC by restriction digestion and (3) circularization of the linear BAC by exonuclease-mediated in vitro DNA annealing. This protocol can be performed within 3 weeks and will enable researchers with DNA cloning experience to master seamless site-directed mutagenesis to accelerate their research.
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Affiliation(s)
- Ji Luan
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, Shandong University, Qingdao, Shandong, China
| | - Chaoyi Song
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, Shandong University, Qingdao, Shandong, China
| | - Yan Liu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, Shandong University, Qingdao, Shandong, China
| | - Ruoting He
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, Shandong University, Qingdao, Shandong, China
| | - Ruofei Guo
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, Shandong University, Qingdao, Shandong, China
| | - Qingwen Cui
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, Shandong University, Qingdao, Shandong, China
| | - Chanjuan Jiang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, Shandong University, Qingdao, Shandong, China
| | - Xiaochen Li
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, Shandong University, Qingdao, Shandong, China
| | - Kexin Hao
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, Shandong University, Qingdao, Shandong, China
| | - A Francis Stewart
- Genomics, Center for Molecular and Cellular Bioengineering, Biotechnology Center, Technische Universität Dresden, Dresden, Germany
| | - Jun Fu
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, Shandong University, Qingdao, Shandong, China
| | - Youming Zhang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, Shandong University, Qingdao, Shandong, China
| | - Hailong Wang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-infectives, Shandong University-Helmholtz Institute of Biotechnology, Shandong University, Qingdao, Shandong, China.
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Yu Z, Shi D, Dong Y, Shao Y, Chen Z, Cheng F, Zhang Y, Wang Z, Tu J, Song X. Pyrococcus furiosus argonaute combined with loop-mediated isothermal amplification for rapid, ultrasensitive, and visual detection of fowl adenovirus serotype 4. Poult Sci 2024; 103:103729. [PMID: 38676965 PMCID: PMC11066553 DOI: 10.1016/j.psj.2024.103729] [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: 02/01/2024] [Revised: 03/26/2024] [Accepted: 03/31/2024] [Indexed: 04/29/2024] Open
Abstract
Since 2015, an outbreak of an infectious disease in broilers caused by fowl adenovirus serotype 4 (FAdV-4) has occurred in China, resulting in substantial economic losses. Rapid, accurate, and specific detection are significant in the prevention and control of FAdV-4. In this study, an FAdV-4 detection method combining loop-mediated isothermal amplification (LAMP) and Pyrococcus furiosus Argonaute (PfAgo) was established. Specific primers, guide DNAs (gDNAs), and molecular beacons were designed to target a conserved region of the FAdV-4 hexon gene. After optimizing the reaction conditions, the minimum detection of this assay could reach 5 copies. It only amplified FAdV-4, and there was no cross-reactivity with other pathogens. The assay took about only 50 min, and the results could be visualized with the naked eye under ultraviolet or blue light, getting rid of specialized instruments. This novel LAMP-PfAgo assay was validated by using 20 clinical samples and the results were identical to gold-standard real-time polymerase chain reaction method. In summary, the LAMP-PfAgo assay established in the paper provides a rapid, reliable, convenient, ultra-sensitive and highly specific tool for the on-site detection and clinical diagnosis of FAdV-4.
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Affiliation(s)
- Zhaorong Yu
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Daoming Shi
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Yanli Dong
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Ying Shao
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Zhe Chen
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Fanyu Cheng
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Yu Zhang
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Zhenyu Wang
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Jian Tu
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China
| | - Xiangjun Song
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, PR China; Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, College of Animal Science and Technology, Anhui Agricultural University, Hefei, Anhui 230036, PR China.
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5
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Wei Y, Xie Z, Xie Z, Deng X, Li X, Xie L, Fan Q, Zhang Y, Wang S, Ren H, Wan L, Luo S, Li M. Differences in the pathogenicity and molecular characteristics of fowl adenovirus serotype 4 epidemic strains in Guangxi Province, southern China. Front Microbiol 2024; 15:1428958. [PMID: 38993495 PMCID: PMC11236736 DOI: 10.3389/fmicb.2024.1428958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Accepted: 06/13/2024] [Indexed: 07/13/2024] Open
Abstract
Starting in 2015, the widespread prevalence of hydropericardium-hepatitis syndrome (HHS) has led to considerable financial losses within China's poultry farming industry. In this study, pathogenicity assessments, whole-genome sequencing, and analyses were conducted on 10 new isolates of the novel genotype FAdV-4 during a HHS outbreak in Guangxi Province, China, from 2019 to 2020. The results indicated that strains GX2019-010 to GX2019-013 and GX2019-015 to GX2019-018 were highly virulent, while strain GX2020-019 exhibited moderate virulence. Strain GX2019-014 was characterized as a wild-type strain with low virulence, displaying no pathogenic effects when 0.5 mL containing 106 TCID50 virus was inoculated into the muscle of specific pathogen-free (SPF) chickens at 4 weeks of age, while 107 TCID50 and 108 TCID50 resulted in mortality rates of 80 and 100%, respectively. The whole genomes of strains GX2019-010 to GX2019-013, GX2019-015 to GX2019-018, and GX2020-019 showed high homology with other Chinese newly emerging highly pathogenic FAdV-4 strains, whereas GX2019-014 was closer to nonmutant strains and shared the same residues with known nonpathogenic strains (B1-7, KR5, and ON1) at positions 219AA and 380AA of the Fiber-2 protein. Our work enriches the research on prevalent strains of FAdV-4 in China, expands the knowledge on the virulence diversity of the novel genotype FAdV-4, and provides valuable reference material for further investigations into the key virulence-associated genetic loci of FAdV-4.
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Affiliation(s)
- You Wei
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China
- Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural A-airs of China, Nanning, Guangxi, China
| | - Zhiqin Xie
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China
- Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural A-airs of China, Nanning, Guangxi, China
| | - Zhixun Xie
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China
- Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural A-airs of China, Nanning, Guangxi, China
| | - Xianwen Deng
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China
- Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural A-airs of China, Nanning, Guangxi, China
| | - Xiaofeng Li
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China
- Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural A-airs of China, Nanning, Guangxi, China
| | - Liji Xie
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China
- Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural A-airs of China, Nanning, Guangxi, China
| | - Qing Fan
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China
- Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural A-airs of China, Nanning, Guangxi, China
| | - Yanfang Zhang
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China
- Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural A-airs of China, Nanning, Guangxi, China
| | - Sheng Wang
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China
- Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural A-airs of China, Nanning, Guangxi, China
| | - Hongyu Ren
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China
- Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural A-airs of China, Nanning, Guangxi, China
| | - Lijun Wan
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China
- Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural A-airs of China, Nanning, Guangxi, China
| | - Sisi Luo
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China
- Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural A-airs of China, Nanning, Guangxi, China
| | - Meng Li
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning, Guangxi, China
- Key Laboratory of China (Guangxi)-ASEAN Cross-Border Animal Disease Prevention and Control, Ministry of Agriculture and Rural A-airs of China, Nanning, Guangxi, China
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Bayraktar E, Aydin O, Tali HE, Yilmaz SG, Yilmaz A, Turan N, Bamac OE, Ozturk A, Erdem A, Kelleci M, Sadeyen JR, Chang P, Yilmaz H, Iqbal M. Molecular characterisation of fowl adenovirus associated with hydropericardium hepatitis syndrome in broiler and layer breeders in Azerbaijan. BMC Vet Res 2024; 20:244. [PMID: 38849870 PMCID: PMC11157802 DOI: 10.1186/s12917-024-04081-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 05/16/2024] [Indexed: 06/09/2024] Open
Abstract
BACKGROUND Fowl adenovirus-4 is a causative agent of hydropericardium hepatitis syndrome (HHS) in chickens and has been frequently reported from many countries. Fowl adenoviruses cause severe disease and mortality in broiler and layer breeders in Azerbaijan. Therefore, in this study, pathological lesions and the dissemination of fowl adenovirus-4 into the visceral organs of infected birds were investigated as well as molecular characterisation of detected strains. For this, liver, heart and spleen from 20 necropsied chickens originated from a broiler breeder flock and a layer breeder flock were embeded on the FTA cards and the samples were analysed for adenovirus-DNA by PCR and sequencing. RESULTS The findings of necropsy in both broiler and layer breeder chickens were similar, and the liver was severely effected showing hepatitis, and the heart with hydropericardium lesions. The kidneys were swollen with haemorrhages and small white foci on the surface of the spleens were noted. Intestinal congestion and ecchymotic hemorrhages were also observed in some birds. Fowl adenovirus-4-DNA was detected by PCR in all collected organs of 20 birds. The sequence analysis revealed that fowl adenovirus-4 present in Azerbaijan and close similarity of the hexon genes of the adenoviruses existing in the Middle East, North America, far east and Indian subcontinent were determined by phylogenetic analysis. However, sequence diversity was detected from the adenovirus strains circulating in Europe, North and South America. CONCLUSIONS This study indicates the impact of fowl adenovirus-4 on the poultry health and production, and improved disease control and prevention strategies are necessary to reduce the HHS disease in chickens in Azerbaijan.
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Affiliation(s)
| | - Ozge Aydin
- Department of Virology, Istanbul University-Cerrahpasa, Veterinary Faculty, Hadimkoy, Istanbul, Türkiye
| | - Hasan Emre Tali
- Department of Virology, Istanbul University-Cerrahpasa, Veterinary Faculty, Hadimkoy, Istanbul, Türkiye
| | - Semaha Gul Yilmaz
- Department of Virology, Istanbul University-Cerrahpasa, Veterinary Faculty, Hadimkoy, Istanbul, Türkiye
| | - Aysun Yilmaz
- Department of Virology, Istanbul University-Cerrahpasa, Veterinary Faculty, Hadimkoy, Istanbul, Türkiye
- The Pirbright Institute, Ash Road, Pirbright, Woking, GU24 0NF, UK
| | - Nuri Turan
- Department of Virology, Istanbul University-Cerrahpasa, Veterinary Faculty, Hadimkoy, Istanbul, Türkiye
| | - Ozge Erdogan Bamac
- Department of Pathology, Istanbul University-Cerrahpasa, Veterinary Faculty, Hadimkoy, Istanbul, Türkiye
| | - Akay Ozturk
- CEVA Animal Health, Poultry Division, Maslak, Türkiye
| | - Altug Erdem
- CEVA Animal Health, Poultry Division, Maslak, Türkiye
| | - Metin Kelleci
- Kartallar Veterinary Consultancy Company, Bursa, Türkiye
| | | | - Pengxiang Chang
- The Pirbright Institute, Ash Road, Pirbright, Woking, GU24 0NF, UK
| | - Huseyin Yilmaz
- Department of Virology, Istanbul University-Cerrahpasa, Veterinary Faculty, Hadimkoy, Istanbul, Türkiye.
- The Pirbright Institute, Ash Road, Pirbright, Woking, GU24 0NF, UK.
| | - Munir Iqbal
- The Pirbright Institute, Ash Road, Pirbright, Woking, GU24 0NF, UK
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7
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Hou X, Wang L, Zhang R, Liu G, Wang T, Wen B, Chang W, Han S, Han J, Fang J, Qi X, Wang J. Differential innate immune responses to fowl adenovirus serotype 4 infection in Leghorn male hepatocellular and chicken embryo fibroblast cells. Poult Sci 2024; 103:103741. [PMID: 38670055 PMCID: PMC11066554 DOI: 10.1016/j.psj.2024.103741] [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: 01/23/2024] [Revised: 04/01/2024] [Accepted: 04/03/2024] [Indexed: 04/28/2024] Open
Abstract
Fowl adenovirus serotype 4 (FAdV-4) infections result in substantial economic losses in the poultry industry. Recent findings have revealed that FAdV-4 significantly suppresses the host immune response upon infection; however, the specific viral and host factors contributing to this immunomodulatory activity remain poorly characterized. Moreover, diverse cell types exhibit differential immune responses to FAdV-4 infection. To elucidate cell-specific host responses, we performed transcriptomic analysis of FAdV-4 infected leghorn male hepatocellular (LMH) and chicken embryo fibroblast (CEF) cells. Although FAdV-4 replicated more efficiently in LMH cells, it provoked limited interferon-stimulated gene induction. In contrast, FAdV-4 infection triggered robust antiviral responses in CEF cells, including upregulation of cytosolic DNA sensing and interferon-stimulated genes. Knockdown of key cytosolic DNA sensing molecules enhanced FAdV-4 replication in LMH cells while reducing interferon-stimulated gene expression. Our findings reveal cell-specific virus-host interactions that provide insight into FAdV-4 pathogenesis while identifying factors that mediate antiviral immunity against FAdV-4.
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Affiliation(s)
- Xiaolan Hou
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Lizhen Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Riteng Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Gen Liu
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, Guangzhou, China
| | - Ting Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Bo Wen
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Wenchi Chang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Shuizhong Han
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jinjie Han
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Junyang Fang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xuefeng Qi
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jingyu Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling 712100, Shaanxi, China.
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8
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Ugwu CC, Hair-Bejo M, Nurulfiza MI, Omar AR, Ideris A. Attenuation and molecular characterization of fowl adenovirus 8b propagated in a bioreactor and its immunogenicity, efficacy, and virus shedding in broiler chickens. Vet World 2024; 17:744-755. [PMID: 38798289 PMCID: PMC11111708 DOI: 10.14202/vetworld.2024.744-755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 03/05/2024] [Indexed: 05/29/2024] Open
Abstract
Background and Aim Live-attenuated vaccines are the most successful type of vaccine and could be useful in controlling fowl adenovirus (FAdV) 8b infection. This study aimed to attenuate, molecularly characterize, and determine the immunogenicity, efficacy, and challenge virus shedding in broiler chickens. Materials and Methods The FAdV 8b isolate (UPM08136) was passaged onto chicken embryo liver (CEL) cells until attenuation. We sequenced and analyzed the hexon and fiber genes of the passage isolates. The attenuated bioreactor-passage isolate was inoculated into 1-day-old broiler chickens with (attenuated and inactivated) and without booster groups and challenged. Body weight (BW), liver weight (LW), liver: body weight ratio (LBR), FAdV antibody titers, T-lymphocyte subpopulation in the liver, spleen, and thymus, and challenge virus load and shedding were measured. Results Typical cytopathic effects with novel genetic changes on CEL cells were observed. The uninoculated control-challenged (UCC) group had significantly lower BW and higher LW and LBR than the inoculated groups. A significantly higher FAdV antibody titer was observed in the challenged non-booster and attenuated booster groups than in the UCC group. T cells in the spleen and thymus of the liver of inoculated chickens were higher than uninoculated control group levels at all-time points and at different times. A significantly higher FAdV challenge virus load was observed in the liver and shedding in the cloaca of UCC chickens than in non-booster chickens. Conclusion The FAdV 8b isolate was successfully attenuated, safe, and immunogenic. It reduces virus shedding and is effective and recommended as a vaccine against FAdV infection in broiler chickens.
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Affiliation(s)
- Chidozie C. Ugwu
- Department of Veterinary Pathology and Microbiology Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Department of Animal Science and Technology, Federal University of Technology, Owerri 460114, Imo State, Nigeria
| | - Mohd Hair-Bejo
- Department of Veterinary Pathology and Microbiology Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Laboratory of Vaccine and Biomolecules, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Mat I. Nurulfiza
- Laboratory of Vaccine and Biomolecules, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Abdul R. Omar
- Department of Veterinary Pathology and Microbiology Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Laboratory of Vaccine and Biomolecules, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Aini Ideris
- Department of Veterinary Pathology and Microbiology Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Laboratory of Vaccine and Biomolecules, Institute of Bioscience, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
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9
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Li Y, Zhou H, Li B, Li J, Shen Y, Jiang Y, Cui W, Tang L. Immunoprotection of FliBc chimeric fiber2 fusion proteins targeting dendritic cells against Fowl adenovirus serotype 4 infection. Poult Sci 2024; 103:103474. [PMID: 38387285 PMCID: PMC10899072 DOI: 10.1016/j.psj.2024.103474] [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: 10/27/2023] [Revised: 12/28/2023] [Accepted: 01/11/2024] [Indexed: 02/24/2024] Open
Abstract
Hepatitis-hydropericardium syndrome (HHS) is a highly fatal disease in chickens caused by the highly pathogenic fowl adenovirus serotype 4 (FAdV-4), which has severe economic consequences. The fiber2 protein exhibits excellent potential as a candidate for a subunit vaccination against FAdV-4. Despite having a high safety profile, subunit vaccines have low immunogenicity due to their lack of infectivity, which leads to low levels of immune response. As a vaccine adjuvant, Salmonella flagellin possesses the potential to augment the immunological response to vaccinations. Additionally, a crucial strategy for enhancing vaccine efficacy is efficient presentation of immune antigens to dendritic cells (DC) for targeted vaccination. In this study, we designed FAdV-4-fiber2 protein, and a recombinant protein called FliBc-fiber2-SP which based on FAdV-4-fiber2 protein, was generated using the gene sequence FliBc, which retains only the conserved sequence at the amino and carboxyl termini of the flagellin B subunit, and a short peptide SPHLHTSSPWER (SP), which targets chicken bone marrow-derived DC. They were separately administered via intramuscular injection to 14-day-old specific pathogen-free (SPF) chickens, and their immunogenicity was compared. At 21 d postvaccination (dpv), it was found that the FliBc-fiber2-SP recombinant protein elicited significantly higher levels of IgG antibodies and conferred a vaccine protection rate of up to 100% compared to its counterpart fiber2 protein. These results suggest that the DC-targeted peptide fusion strategy for flagellin chimeric antigen construction can effectively enhance the immune protective efficacy of antigen proteins.
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Affiliation(s)
- Yue Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 1550030, China
| | - Han Zhou
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 1550030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin 150030, China
| | - Bolong Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 1550030, China
| | - Jiaxuan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 1550030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin 150030, China
| | - Yuanmeng Shen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 1550030, China
| | - Yanping Jiang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 1550030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin 150030, China
| | - Wen Cui
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 1550030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin 150030, China
| | - Lijie Tang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 1550030, China; Heilongjiang Key Laboratory for Animal Disease Control and Pharmaceutical Development, Harbin 150030, China.
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10
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Gao S, Li R, Zhang X, Wang Z. Identification of ORF1B as a unique nonstructural protein for fowl adenovirus serotype 4. Microb Pathog 2024; 186:106508. [PMID: 38141742 DOI: 10.1016/j.micpath.2023.106508] [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: 11/28/2023] [Revised: 12/18/2023] [Accepted: 12/19/2023] [Indexed: 12/25/2023]
Abstract
Fowl adenovirus serotype 4 (FAdV-4), the causative agent of hepatitis-hydropericardium syndrome (HHS), is a double-stranded DNA virus. Although many structural proteins have been deeply studied, the coding potential of some other open reading frames (ORFs) and the biological functions of their products during virus infection have not been fully elucidated. Here, a unique nonstructural protein ORF1B of FAdV-4 was identified and its expression kinetics along infection was analyzed. Except that of FAdV-10, a member of the same genus as FAdV-4, FAdV-4 ORF1B shared as low homologous identity as 29.2% in amino acid sequence with the other ten counterparts. Structurally, ORF1B was mapped on the N-terminal region of the genome between 1485 nt to 1808 nt and predicted to only contain two α-helix. Confocal immunofluorescence assay with homemade rabbit polyclonal antibody demonstrated that ORF1B could be simultaneously observed with structural protein Fiber 1 in FAdV-4-infected cells. Western blot further showed that ORF1B could only be detected in the infected cells but not mature virions, suggesting ORF1B was a nonstructural protein. Subsequently, the expression level of ORF1B detected by qRT-PCR and IFA was gradually decreased along with FAdV-4 infection, suggesting ORF1B was an early gene transcript. These results will lay a solid foundation to further study the biological effect of ORF1B on the replication and pathogenicity of FAdV-4.
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Affiliation(s)
- Shenyan Gao
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, PR China
| | - Ruixue Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, PR China
| | - Xiaozhan Zhang
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou, PR China
| | - Zeng Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, PR China.
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11
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Lu Y, Yuan Y, Jiang H, Xu Z, Guo Y, Cao X, Li T, Wan Z, Shao H, Qin A, Xie Q, Ye J. Efficient cross-protection against serotype 4/8a fowl adenoviruses (FAdVs): recombinant FAdV-4 with FAdV-8a Fiber. Microbiol Spectr 2023; 11:e0246223. [PMID: 37966208 PMCID: PMC10714736 DOI: 10.1128/spectrum.02462-23] [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: 06/14/2023] [Accepted: 10/08/2023] [Indexed: 11/16/2023] Open
Abstract
IMPORTANCE Epidemiological data reveal that FAdV-4 and FAdV-8a are the dominant serotypes of FAdVs in the poultry industry in China. Although three commercial inactivated vaccines against FAdV-4 have been licensed in China, the bivalent vaccine against both FAdV-4 and FAdV-8a is not available. Here, we used CRISPR-Cas9 and Cre-LoxP system to generate a recombinant virus FAdV4-F/8a-rF2 expressing the Fiber of FAdV-8a. Notably, FAdV4-F/8a-rF2 was highly attenuated and could provide efficient protection against both FAdV-4 and FAdV-8a in the chicken infection model, highlighting the applaudable application of FAdV4-F/8a-rF2 as a novel live-attenuated bivalent vaccine against the diseases caused by the infection of FAdV-4 and FAdV-8a.
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Affiliation(s)
- Yixuan Lu
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Yaqin Yuan
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Huiru Jiang
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Zhenqi Xu
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Yiwen Guo
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Xudong Cao
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
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12
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Athukorala A, Lacasse C, Curtiss JB, Phalen DN, Sarker S. Characterisation of a novel aviadenovirus associated with disease in tawny frogmouths (Podargus strigoides). Virology 2023; 588:109904. [PMID: 37856912 DOI: 10.1016/j.virol.2023.109904] [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: 09/01/2023] [Revised: 09/28/2023] [Accepted: 10/02/2023] [Indexed: 10/21/2023]
Abstract
Aviadenoviruses are widespread in wild birds but rarely cause disease in nature. However, when naïve species are exposed to poultry or aviaries, aviadenoviruses can lead to disease outbreaks. This study characterised a novel aviadenovirus infection in a native Australian bird, the tawny frogmouth (Podargus strigoides) during an outbreak investigation. The identified complete genome of aviadenovirus, named tawny frogmouth aviadenovirus A (TwAviAdV-A) was 41,175 bp in length containing 52 putative genes. TwAviAdV-A exhibits the common aviadenovirus genomic organisation but with a notable monophyletic subclade in the phylogeny. The TwAviAdV-A virus was hepatotrophic and the six frogmouths presented to the wildlife hospitals in South Eastern Queensland most commonly exhibited regurgitation (in four frogmouths). Three were died or euthanized, two recovered, and one showed no signs. The detection of TwAviAdV-A in frogmouths coming into care re-emphasizes the need for strict biosecurity protocols in wildlife hospitals and care facilities.
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Affiliation(s)
- Ajani Athukorala
- Department of Microbiology, Anatomy, Physiology, And Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Melbourne, VIC, 3086, Australia.
| | - Claude Lacasse
- RSPCA Queensland, 139 Wacol Station Road, Wacol, Queensland, 4076, Australia.
| | - Jeffrey B Curtiss
- IDEXX Laboratories, 3 Overend Street, East Brisbane, Queensland, 4169, Australia.
| | - David N Phalen
- Sydney School of Veterinary Science, University of Sydney, Camden, New South Wales, Australia; Schubot Exotic Bird Health, Texas A&M College of Veterinary Medicine and Biomedical Sciences, College Station, TX, 77843-4467, USA.
| | - Subir Sarker
- Department of Microbiology, Anatomy, Physiology, And Pharmacology, School of Agriculture, Biomedicine and Environment, La Trobe University, Melbourne, VIC, 3086, Australia; Biomedical Sciences & Molecular Biology, College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD 4811, Australia.
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13
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Lai J, Yang L, Chen F, He X, Zhang R, Zhao Y, Gao G, Mu W, Chen X, Luo S, Ren T, Xiang B. Prevalence and Molecular Characteristics of FAdV-4 from Indigenous Chicken Breeds in Yunnan Province, Southwestern China. Microorganisms 2023; 11:2631. [PMID: 38004643 PMCID: PMC10673041 DOI: 10.3390/microorganisms11112631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/18/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023] Open
Abstract
Fowl adenovirus-induced hepatitis-pericardial effusion syndrome outbreaks have been increasingly reported in China since 2015, resulting in substantial economic losses to the poultry industry. The genetic diversity of indigenous chicken results in different immune traits, affecting the evolution of these viruses. Although the molecular epidemiology of fowl adenovirus serotype 4 (FAdV-4) has been well studied in commercial broiler and layer chickens, the prevalence and genetic characteristics of FAdV-4 in indigenous chickens remain largely unknown. In this study, samples were collected from six indigenous chicken breeds in Yunnan province, China. FAdV-positive samples were identified in five of the six indigenous chicken populations via PCR and 10 isolates were obtained. All FAdVs belonged to serotype FAdV-4 and species FAdV-C. The hexon, fiber, and penton gene sequence comparison analysis demonstrated that the prevalence of FAdV-4 isolates in these chickens might have originated from other provinces that exported chicks and poultry products to Yunnan province. Moreover, several distinct amino acid mutations were firstly identified in the major structural proteins. Our findings highlighted the need to decrease inter-regional movements of live poultry to protect indigenous chicken genetic resources and that the immune traits of these indigenous chickens might result in new mutations of FAdV-4 strains.
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Affiliation(s)
- Jinyu Lai
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Liangyu Yang
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Fashun Chen
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Xingchen He
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Rongjie Zhang
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Yong Zhao
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Gan Gao
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Weiwu Mu
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Xi Chen
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Shiyu Luo
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
| | - Tao Ren
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Bin Xiang
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming 650201, China
- Center for Poultry Disease Control and Prevention, Yunnan Agricultural University, Kunming 650201, China
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14
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Jakab S, Bali K, Homonnay Z, Kaszab E, Ihász K, Fehér E, Mató T, Kiss I, Palya V, Bányai K. Genomic Epidemiology and Evolution of Fowl Adenovirus 1. Animals (Basel) 2023; 13:2819. [PMID: 37760219 PMCID: PMC10525556 DOI: 10.3390/ani13182819] [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: 06/29/2023] [Revised: 08/16/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023] Open
Abstract
Fowl adenovirus 1 (FAdV-1) is the main cause of gizzard erosion in chickens. Whole genome sequencing and sequence analyses of 32 FAdV-1 strains from a global collection provided evidence that multiple recombination events have occurred along the entire genome. In gene-wise phylogenies, only the adenoviral pol gene formed a tree topology that corresponded to whole genome-based phylogeny. Virus genetic features that were clearly connected to gizzard erosion were not identified in our analyses. However, some genome variants tended to be more frequently identified from birds with gizzard erosion and strains isolated from healthy birds or birds with non-specific pathologies tended to form common clusters in multiple gene phylogenies. Our data show that the genetic diversity is greater, and the evolutionary mechanisms are more complex within FAdV-1 than previously thought. The implications of these findings for viral pathogenesis and epidemiology await further investigation.
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Affiliation(s)
- Szilvia Jakab
- Veterinary Medical Research Institute, Hungária krt. 21, H-1143 Budapest, Hungary; (S.J.); (K.B.); (E.K.); (K.I.); (E.F.)
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Hungária krt. 21, H-1143 Budapest, Hungary
| | - Krisztina Bali
- Veterinary Medical Research Institute, Hungária krt. 21, H-1143 Budapest, Hungary; (S.J.); (K.B.); (E.K.); (K.I.); (E.F.)
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Hungária krt. 21, H-1143 Budapest, Hungary
| | - Zalán Homonnay
- Ceva-Phylaxia Ltd., Szállás u. 5, H-1107 Budapest, Hungary; (Z.H.); (T.M.); (I.K.); (V.P.)
| | - Eszter Kaszab
- Veterinary Medical Research Institute, Hungária krt. 21, H-1143 Budapest, Hungary; (S.J.); (K.B.); (E.K.); (K.I.); (E.F.)
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Hungária krt. 21, H-1143 Budapest, Hungary
| | - Katalin Ihász
- Veterinary Medical Research Institute, Hungária krt. 21, H-1143 Budapest, Hungary; (S.J.); (K.B.); (E.K.); (K.I.); (E.F.)
| | - Enikő Fehér
- Veterinary Medical Research Institute, Hungária krt. 21, H-1143 Budapest, Hungary; (S.J.); (K.B.); (E.K.); (K.I.); (E.F.)
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Hungária krt. 21, H-1143 Budapest, Hungary
| | - Tamás Mató
- Ceva-Phylaxia Ltd., Szállás u. 5, H-1107 Budapest, Hungary; (Z.H.); (T.M.); (I.K.); (V.P.)
| | - István Kiss
- Ceva-Phylaxia Ltd., Szállás u. 5, H-1107 Budapest, Hungary; (Z.H.); (T.M.); (I.K.); (V.P.)
| | - Vilmos Palya
- Ceva-Phylaxia Ltd., Szállás u. 5, H-1107 Budapest, Hungary; (Z.H.); (T.M.); (I.K.); (V.P.)
| | - Krisztián Bányai
- Veterinary Medical Research Institute, Hungária krt. 21, H-1143 Budapest, Hungary; (S.J.); (K.B.); (E.K.); (K.I.); (E.F.)
- National Laboratory for Infectious Animal Diseases, Antimicrobial Resistance, Veterinary Public Health and Food Chain Safety, Hungária krt. 21, H-1143 Budapest, Hungary
- Department of Pharmacology and Toxicology, University of Veterinary Medicine, István utca 2, H-1078 Budapest, Hungary
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15
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Xue X, Yang Q, Wu MJ, Zhang Z, Song J, Wang W, Yang J, Ji J, Zhang Y, Dai H, Yin H, Li S. Genomic and Pathologic Characterization of the First FAdV-C Serotype 4 Isolate from Black-Necked Crane. Viruses 2023; 15:1653. [PMID: 37631996 PMCID: PMC10458181 DOI: 10.3390/v15081653] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/24/2023] [Accepted: 07/27/2023] [Indexed: 08/27/2023] Open
Abstract
Fowl adenoviruses (FAdVs) are distributed worldwide in poultry and incriminated as the etiological agents for several health problems in fowls, and are capable of crossing species barriers between domestic and wild fowls. An FAdV strain was, for the first time, isolated from black-necked crane in this study, and was designated as serotype 4 Fowl aviadenovirus C (abbreviated as BNC2021) according to the phylogenetic analysis of its DNA polymerase and hexon gene. The viral genomic sequence analysis demonstrated that the isolate possessed the ORF deletions that are present in FAdV4 strains circulating in poultry fowls in China and the amino acid mutations associated with viral pathogenicity in the hexon and fiber 2 proteins. A viral challenge experiment with mallard ducks demonstrated systemic viral infection and horizontal transmission. BNC2021 induced the typical clinical signs of hepatitis-hydropericardium syndrome (HHS) with swelling and inflammation in multiple organs and showed significant viral replication in all eight organs tested in the virus-inoculated ducks and their contactees at 6 dpi. The findings highlight the importance of surveillance of FAdVs in wild birds.
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Affiliation(s)
- Xiaoyan Xue
- College of Life Sciences, Southwest Forestry University, 300 Bailong Road, Kunming 650024, China; (X.X.); (Q.Y.); (W.W.); (J.Y.); (J.J.)
| | - Qinhong Yang
- College of Life Sciences, Southwest Forestry University, 300 Bailong Road, Kunming 650024, China; (X.X.); (Q.Y.); (W.W.); (J.Y.); (J.J.)
| | - Ming J. Wu
- School of Science, Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia;
| | - Zhenxing Zhang
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Academy of Animal Husbandry and Veterinary Sciences, 6 Qinglongshan, Kunming 650224, China;
| | - Jianling Song
- Yunnan Tropical and Subtropical Animal Virus Diseases Laboratory, Yunnan Academy of Animal Husbandry and Veterinary Sciences, 6 Qinglongshan, Kunming 650224, China;
| | - Wei Wang
- College of Life Sciences, Southwest Forestry University, 300 Bailong Road, Kunming 650024, China; (X.X.); (Q.Y.); (W.W.); (J.Y.); (J.J.)
| | - Jia Yang
- College of Life Sciences, Southwest Forestry University, 300 Bailong Road, Kunming 650024, China; (X.X.); (Q.Y.); (W.W.); (J.Y.); (J.J.)
| | - Jia Ji
- College of Life Sciences, Southwest Forestry University, 300 Bailong Road, Kunming 650024, China; (X.X.); (Q.Y.); (W.W.); (J.Y.); (J.J.)
| | - Yongxian Zhang
- Animal Disease Inspection and Supervision Institution of Yunnan Province, 118 Gulou Road, Kunming 650051, China; (Y.Z.); (H.Y.)
| | - Hongyang Dai
- The Management Bureau of Huize Black Necked Crane National Nature Reserve, 744 Tongbao Road, Qujing 654200, China;
| | - Hongbin Yin
- Animal Disease Inspection and Supervision Institution of Yunnan Province, 118 Gulou Road, Kunming 650051, China; (Y.Z.); (H.Y.)
| | - Suhua Li
- College of Life Sciences, Southwest Forestry University, 300 Bailong Road, Kunming 650024, China; (X.X.); (Q.Y.); (W.W.); (J.Y.); (J.J.)
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16
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Li W, You G, Haiyilati A, Wang H, Jiao H, Wang Y, Gao L, Cao H, Li X, Zheng SJ. Critical Role of Viral Protein Hexon in Hypervirulent Fowl Adenovirus Serotype-4-Induced Autophagy by Interaction with BAG3 and Promotion of Viral Replication in LMH Cells. J Virol 2023; 97:e0028423. [PMID: 37255472 PMCID: PMC10308884 DOI: 10.1128/jvi.00284-23] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 05/13/2023] [Indexed: 06/01/2023] Open
Abstract
Hepatitis-pericardial syndrome (HHS) is an acute highly infectious avian disease caused by fowl adenovirus serotype 4 (FAdV-4), characterized by fulminant hepatitis and hydropericardium in broilers. Since 2015, a widespread epidemic has occurred in China due to the emergence of hypervirulent FAdV-4 (HPFAdV-4), causing huge losses to the stakeholders. However, the pathogenesis of HPFAdV-4 and the host responses to its infection remain elusive. Here, we show that infection of leghorn male hepatocellular (LMH) cells by HPFAdV-4 induced complete autophagy in cells and that the autophagy induced by recombinant HPFAdV-4-ON1 (rHPFAdV-4-ON1), a viral strain generated by replacing the hexon gene of wild-type HPFAdV-4 (HPFAdV-4-WT) with the one of nonpathogenic strain FAdV-4-ON1, was remarkably mitigated compared to that of the rHPFAdV-4-WT control, suggesting that HPFAdV-4 hexon is responsible for virus-induced autophagy. Importantly, we found that hexon interacted with a cellular protein, BAG3, a host protein that initiates autophagy, and that BAG3 expression increased in cells infected with HPFAdV-4. Furthermore, knockdown of BAG3 by RNA interference (RNAi) significantly inhibited HPFAdV-4- or hexon-induced autophagy and suppressed viral replication. On the contrary, expression of hexon markedly upregulated the expression of BAG3 via activating the P38 signaling pathway, triggering autophagy. Thus, these findings reveal that HPFAdV-4 hexon interacts with the host protein BAG3 and promotes BAG3 expression by activating P38 signaling pathway, thereby inducing autophagy and enhancing viral proliferation, which immensely furthers our understanding of the pathogenesis of HPFAdV-4 infection. IMPORTANCE HHS, mainly caused by HPFAdV-4, has caused large economic losses to the stakeholders in recent years. Infection of leghorn male hepatocellular (LMH) cells by HPFAdV-4 induced complete autophagy that is essential for HPFAdV-4 replication. By a screening strategy, the viral protein hexon was found responsible for virus-induced autophagy in cells. Importantly, hexon was identified as a factor promoting viral replication by interaction with BAG3, an initiator of host cell autophagy. These findings will help us to better understand the host response to HPFAdV-4 infection, providing a novel insight into the pathogenesis of HPFAdV-4 infection.
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Affiliation(s)
- Wei Li
- National Key Laboratory of Veterinary Public Health Security, China Agricultural University, Beijing, China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Guangju You
- National Key Laboratory of Veterinary Public Health Security, China Agricultural University, Beijing, China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Areayi· Haiyilati
- National Key Laboratory of Veterinary Public Health Security, China Agricultural University, Beijing, China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Hongnuan Wang
- National Key Laboratory of Veterinary Public Health Security, China Agricultural University, Beijing, China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Huixuan Jiao
- National Key Laboratory of Veterinary Public Health Security, China Agricultural University, Beijing, China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Yongqiang Wang
- National Key Laboratory of Veterinary Public Health Security, China Agricultural University, Beijing, China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Li Gao
- National Key Laboratory of Veterinary Public Health Security, China Agricultural University, Beijing, China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Hong Cao
- National Key Laboratory of Veterinary Public Health Security, China Agricultural University, Beijing, China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Xiaoqi Li
- College of Veterinary Medicine, China Agricultural University, Beijing, China
| | - Shijun J. Zheng
- National Key Laboratory of Veterinary Public Health Security, China Agricultural University, Beijing, China
- Key Laboratory of Animal Epidemiology of the Ministry of Agriculture, China Agricultural University, Beijing, China
- College of Veterinary Medicine, China Agricultural University, Beijing, China
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17
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Chen S, Luan Q, Qiu S, Zhao Y, Lu Y, Sun S, Wang J, Yin Y. An efficient and convenient Fiber -2- based latex agglutination test for the detection of antibodies against fowl adenovirus serotype 4 in clinical samples. J Virol Methods 2023; 319:114760. [PMID: 37290574 DOI: 10.1016/j.jviromet.2023.114760] [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: 04/24/2023] [Revised: 05/28/2023] [Accepted: 05/31/2023] [Indexed: 06/10/2023]
Abstract
To detect the antibody against fowl adenovirus serotype 4 (FAdV-4) in clinical practice, the latex agglutination test (LAT) was developed by using the Fiber-2 protein of FAdV-4 as an antigen bound to sensitized latex microspheres. The concentration, time, and temperature of sensitization latex microspheres by the Fiber-2 protein were studied and optimized; the specificity, sensitivity, and repeatability of LAT were tested; and the method developed in the study was applied. The results showed that the optimum sensitization concentration of Fiber-2 protein was 0.8mg/mL, the time was 120min, and the temperature was 37℃. Except for antiserum against FAdV-4 and FAdV-10, LAT developed in the study could not agglutinate antisera against FAdV-1, FAdV-2, FAdV-3, FAdV-4, FAdV-5, FAdV-6, FAdV-8a, FAdV-8b, FAdV-11, Newcastle disease virus, infectious bronchitis virus, egg drop syndrome virus and Clostridium perfringens. Compared with the commercial FAdV-4 ELISA Kit, the titers in 21 clinical samples were low when tested by the developed LAT method, but there was no significant difference. The coefficients of variation among different batches and the same batch of latex-sensitized particles were between 0-13.3% and 0-8.7%, respectively. The critical value of immune protective antibody against FAdV-4 was 25, and the titers in 40.9% of clinical samples were higher than the immune critical point. The results showed that the Fiber-2-based LAT developed in the study has the characteristics of high specificity, sensitivity and repeatability, has the advantages of free equipment, long shelf life, and fast and easy operation, and is an effective and convenient method for serological diagnosis of FAdV-4 infection and evaluating the efficacy of vaccines.
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Affiliation(s)
- Shuzhen Chen
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Qingdong Luan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150038, China
| | - Shimei Qiu
- College of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Yue Zhao
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Yanjin Lu
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China
| | - Shufang Sun
- China Animal Health and Epidemiology Center, Qingdao, 266032, China.
| | - Jianlin Wang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China.
| | - Yanbo Yin
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, 266109, China.
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18
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Guo Y, Xu Z, Chao Y, Cao X, Jiang H, Li H, Li T, Wan Z, Shao H, Qin A, Xie Q, Ye J. An efficient double-fluorescence approach for generating fiber-2-edited recombinant serotype 4 fowl adenovirus expressing foreign gene. Front Microbiol 2023; 14:1160031. [PMID: 37065110 PMCID: PMC10102364 DOI: 10.3389/fmicb.2023.1160031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 03/15/2023] [Indexed: 04/03/2023] Open
Abstract
Recently, the infection of serotype 4 fowl adenovirus (FAdV-4) in chicken flocks has become endemic in China, which greatly threatens the sustainable development of poultry industry. The development of recombinant FAdV-4 expressing foreign genes is an efficient strategy for controlling both FAdV-4 and other important poultry pathogens. Previous reverse genetic technique for generating the recombinant fowl adenovirus is generally inefficient. In this study, a recombinant FAdV-4 expressing enhanced green fluorescence protein (EGFP), FA4-EGFP, was used as a template virus and directly edited fiber-2 gene to develop an efficient double-fluorescence approach to generate recombinant FAdV-4 through CRISPR/Cas9 and Cre-Loxp system. Moreover, using this strategy, a recombinant virus FAdV4-HA(H9) stably expressing the HA gene of H9N2 influenza virus was generated. Chicken infection study revealed that the recombinant virus FAdV4-HA(H9) was attenuated, and could induce haemagglutination inhibition (HI) titer against H9N2 influenza virus at early time points and inhibit the viral replication in oropharynx. All these demonstrate that the novel strategy for constructing recombinant FAdV-4 expressing foreign genes developed here paves the way for rapidly developing attenuated FAdV-4-based recombinant vaccines for fighting the diseases caused by both FAdV-4 and other pathogens.
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Affiliation(s)
- Yiwen Guo
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Zhenqi Xu
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Yifei Chao
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Xudong Cao
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Huiru Jiang
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Han Li
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
- *Correspondence: Quan Xie,
| | - 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, Jiangsu, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
- Jianqiang Ye,
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19
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Chen X, Wei Q, Si F, Wang F, Lu Q, Guo Z, Chai Y, Zhu R, Xing G, Jin Q, Zhang G. Design and Identification of a Novel Antiviral Affinity Peptide against Fowl Adenovirus Serotype 4 (FAdV-4) by Targeting Fiber2 Protein. Viruses 2023; 15:v15040821. [PMID: 37112802 PMCID: PMC10146638 DOI: 10.3390/v15040821] [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: 02/22/2023] [Revised: 03/19/2023] [Accepted: 03/21/2023] [Indexed: 04/29/2023] Open
Abstract
Outbreaks of hydropericardium hepatitis syndrome caused by fowl adenovirus serotype 4 (FAdV-4) with a novel genotype have been reported in China since 2015, with significant economic losses to the poultry industry. Fiber2 is one of the important structural proteins on FAdV-4 virions. In this study, the C-terminal knob domain of the FAdV-4 Fiber2 protein was expressed and purified, and its trimer structure (PDB ID: 7W83) was determined for the first time. A series of affinity peptides targeting the knob domain of the Fiber2 protein were designed and synthesized on the basis of the crystal structure using computer virtual screening technology. A total of eight peptides were screened using an immunoperoxidase monolayer assay and RT-qPCR, and they exhibited strong binding affinities to the knob domain of the FAdV-4 Fiber2 protein in a surface plasmon resonance assay. Treatment with peptide number 15 (P15; WWHEKE) at different concentrations (10, 25, and 50 μM) significantly reduced the expression level of the Fiber2 protein and the viral titer during FAdV-4 infection. P15 was found to be an optimal peptide with antiviral activity against FAdV-4 in vitro with no cytotoxic effect on LMH cells up to 200 μM. This study led to the identification of a class of affinity peptides designed using computer virtual screening technology that targeted the knob domain of the FAdV-4 Fiber2 protein and may be developed as a novel potential and effective antiviral strategy in the prevention and control of FAdV-4.
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Affiliation(s)
- Xiao Chen
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Qiang Wei
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Fusheng Si
- Institute of Animal Science and Veterinary Medicine, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
| | - Fangyu Wang
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Qingxia Lu
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Zhenhua Guo
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Yongxiao Chai
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Rongfang Zhu
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
- College of Life Science, Henan Agricultural University, Zhengzhou 450002, China
| | - Guangxu Xing
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Qianyue Jin
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Gaiping Zhang
- College of Veterinary Medicine, Northwest A&F University, Xianyang 712100, China
- Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China
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20
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Wang T, Wang L, Li W, Hou X, Chang W, Wen B, Han S, Chen Y, Qi X, Wang J. Fowl adenovirus serotype 4 enters leghorn male hepatocellular cells via the clathrin-mediated endocytosis pathway. Vet Res 2023; 54:24. [PMID: 36918926 PMCID: PMC10015710 DOI: 10.1186/s13567-023-01155-z] [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: 12/08/2022] [Accepted: 02/12/2023] [Indexed: 03/16/2023] Open
Abstract
Hepatitis-hydropericardium syndrome (HHS) induced by fowl adenovirus serotype-4 (FAdV-4) has caused large economic losses to the world poultry industry in recent years. HHS is characterized by pericardial effusion and hepatitis, manifesting as a swollen liver with focal necroses and petechial haemorrhage. However, the process of FAdV-4 entry into hepatic cells remains largely unknown. In this paper, we present a comprehensive study on the entry mechanism of FAdV-4 into leghorn male hepatocellular (LMH) cells. We first observed that FAdV-4 internalization was inhibited by chlorpromazine and clathrin heavy chain (CHC) knockdown, suggesting that FAdV-4 entry into LMH cells depended on clathrin. By using the inhibitor dynasore, we showed that dynamin was required for FAdV-4 entry. In addition, we found that FAdV-4 entry was dependent on membrane cholesterol, while neither the knockdown of caveolin nor the inhibition of a tyrosine kinase-based signalling cascade affected FAdV-4 infection. These results suggested that FAdV-4 entry required cholesterol but not caveolae. We also found that macropinocytosis played a role, and phosphatidylinositol 3-kinase (PI3K) was required for FAdV-4 internalization. However, inhibitors of endosomal acidification did not prevent FAdV-4 entry. Taken together, our findings demonstrate that FAdV-4 enters LMH cells through dynamin- and cholesterol-dependent clathrin-mediated endocytosis, accompanied by the involvement of macropinocytosis requiring PI3K. Our work potentially provides insight into the entry mechanisms of other avian adenoviruses.
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Affiliation(s)
- Ting Wang
- College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, Shaanxi, China
| | - Lizhen Wang
- College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, Shaanxi, China
| | - Wei Li
- College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, Shaanxi, China
| | - Xiaolan Hou
- College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, Shaanxi, China
| | - Wenchi Chang
- College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, Shaanxi, China
| | - Bo Wen
- College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, Shaanxi, China
| | - Shuizhong Han
- College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, Shaanxi, China
| | - Yan Chen
- College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, Shaanxi, China
| | - Xuefeng Qi
- College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, Shaanxi, China.
| | - Jingyu Wang
- College of Veterinary Medicine, Northwest A&F University, 712100, Yangling, Shaanxi, China.
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21
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Guo X, Chang J, Lu S, Hu P, Zou D, Li Y, Li F, Liu J, Cao Q, Zhang K, Zhan J, Liu Y, Yang X, Ren H. Multiantigen epitope fusion recombinant proteins from capsids of serotype 4 fowl adenovirus induce chicken immunity against avian Angara disease. Vet Microbiol 2023; 278:109661. [PMID: 36758262 DOI: 10.1016/j.vetmic.2023.109661] [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: 07/21/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023]
Abstract
Avian Angara disease caused by fowl adenovirus serotype 4 (FAdV-4) has spread widely and brought economic losses to the poultry industry in some countries. Effective vaccines for Angara disease control are currently lacking. In this study, four capsid proteins (hexon, penton, fiber1 and fiber2) from FAdV-4 were selected, and their optimal efficient antigenic epitopes predicted by bioinformatics software were tandemly linked with the flexible linker GGGGS. Based on their amino acid sequences, the DNA sequences for the genes encoding the multiantigen epitope tandem proteins (MAETPs) FAdV4:F1, FAdV4:P, FAdV4:F2 and FAdV4:H were chemosynthesized and then ligated by T4 ligases at the cleavage sites of restriction endonucleases to construct DNAs encoding the multilinked fusion recombinant proteins (MLFRPs) used as protective antigens from avian Angara disease. These genes ligated into the expression vector pET-28a were successfully expressed using the Escherichia coli prokaryotic expression system to prepare five kinds of MLFRPs (FAdV4:F1-P-F2-H, FAdV4:F1-F2-P-H, FAdV4:F1-F2-H-P, FAdV4:F1-P-H-F2 and FAdV4:F1-H-F2-P) for use to immunize chicks. FAdV-4 was injected into MLFRP-immunized chickens, and the challenge protection rate was evaluated. FAdV4:F1-P-F2-H produced the best protection against FAdV-4, with a single immunization resulting in a 100 % protection rate, followed by FAdV4:F1-F2-P-H (83.33 %) and FAdV4:F1-F2-H-P (66.67 %). FAdV4:F1-P-H-F2 and FAdV4:F1-H-F2-P were not able to induce a good immune protection effect after one immunization. However, all of the MLFRPs were capable of protecting the host from FAdV-4 infection after two immunizations. In conclusion, these MLFRPs generated based on capsid proteins of FAdV-4 are promising candidate subunit vaccines against Angara disease.
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Affiliation(s)
- Xun Guo
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Jiang Chang
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Shiying Lu
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Pan Hu
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Deying Zou
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China; Panjin Center for Inspection and Testing, Panjin 124000, China
| | - Yansong Li
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Feng Li
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China; Shandong Binzhou Animal Science & Veterinary Medicine Academy, Binzhou 256600, China
| | - Jishan Liu
- Shandong Binzhou Animal Science & Veterinary Medicine Academy, Binzhou 256600, China
| | - Qi Cao
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Kai Zhang
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Junpeng Zhan
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Yixin Liu
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xin Yang
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Honglin Ren
- State Key Laboratory for Zoonotic Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, and College of Veterinary Medicine, Jilin University, Changchun 130062, China.
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22
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An Inactivated Novel Trivalent Vaccine Provides Complete Protection against FAdV-4 Causing Hepatitis-Hydropericardium Syndrome and FAdV-8b/-11 Causing Inclusion Body Hepatitis. Transbound Emerg Dis 2023. [DOI: 10.1155/2023/5122382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Outbreaks of hepatitis-hydropericardium syndrome (HHS) caused by fowl adenovirus serotype 4 (FAdV-4) and inclusion body hepatitis (IBH) related to FAdV-8b and FAdV-11 have been increased in chickens in China since 2015. Clinical concurrent infections of FAdV-4, FAdV-8b, and FAdV-11 are quite common, yet there are no commercially available trivalent vaccines against infection by these three serotypes. In our previous study, a bivalent vaccine based on a recombinant FAdV-4, of which fiber-1 was replaced with the fiber of FAdV-8b, has been developed. In this study, a novel recombinant rFAdV-4-fiber/8b + 11 was constructed by inserting FAdV-11 fiber gene into the 1966-bp deletion region of rFAdV-4-fiber/8b genome. The in vitro replication ability of the rFAdV-4-fiber/8b + 11 was similar to the parental FAdV-4. One dose immunization with the inactivated rFAdV-4-fiber/8b + 11 vaccine generated robust immune responses against FAdV-4, FAdV-8b, and FAdV-11, and provided efficient clinical protection against FAdV-4, FAdV-8b, and FAdV-11 challenge. This study provides a novel strategy for developing potential trivalent vaccines for the prevention and control of HHS and IBH.
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23
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Lu Z, Wang Y, Zou X, Hung T. Analysis of Fowl Adenovirus 4 Transcriptome by De Novo ORF Prediction Based on Corrected Nanopore Full-Length cDNA Sequencing Data. Viruses 2023; 15:v15020529. [PMID: 36851744 PMCID: PMC9962806 DOI: 10.3390/v15020529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/31/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
The transcriptome of fowl adenovirus has not been comprehensively revealed. Here, we attempted to analyze the fowl adenovirus 4 (FAdV-4) transcriptome by deep sequencing. RNA samples were extracted from chicken LMH cells at 12, 18 or 26 h post-FAdV-4 infection, and subjected to Illumina strand-specific RNA-seq or nanopore full-length PCR-cDNA sequencing. After removing the reads of host cells, the data of FAdV-4 nanopore full-length cDNAs (transcripts) were corrected with reads from the Illumina RNA-seq, mapped to the viral genome and then used to predict viral open reading frames (ORFs). Other than 42 known ORFs, 39 novel ORFs were annotated to the FAdV-4 genome. Different from human adenovirus 5, one FAdV-4 ORF was often encoded by several transcripts, and more FAdV-4 ORFs were located on two exons. With these data, 18 major transcription start sites and 15 major transcription termination sites were defined, implying 18 viral promoters and 15 polyadenylation signals. The temporal cascade of viral gene transcription was observed in FAdV-4-infected cells, with six promoters possessing considerable activity in the early phase. Unexpectedly, four promoters, instead of one major late promoter, were engaged in the transcription of the viral genus-common genes on the forward strand. The clarification of the FAdV-4 transcriptome laid a solid foundation for the study of viral gene function, virulence and virus evolution, and it would help construct FAdV-4 as a gene transfer vehicle. The strategy of de novo ORF prediction could be used to parse the transcriptome of other novel adenoviruses.
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Affiliation(s)
- Zhuozhuang Lu
- Correspondence: (X.Z.); (Z.L.); Tel.: +86-10-6351-1368 (Z.L.)
| | | | - Xiaohui Zou
- Correspondence: (X.Z.); (Z.L.); Tel.: +86-10-6351-1368 (Z.L.)
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24
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Recombinant fiber-1 protein of fowl adenovirus serotype 4 induces high levels of neutralizing antibodies in immunized chickens. Arch Virol 2023; 168:84. [PMID: 36757474 PMCID: PMC9910269 DOI: 10.1007/s00705-023-05709-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 12/22/2022] [Indexed: 02/10/2023]
Abstract
Virulent fowl adenovirus serotype 4 (FAdV-4) causes hydropericardium syndrome (HPS) with high mortality in chickens, leading to significant economic losses to the poultry industry. The development of an effective vaccine is essential for successful disease control. Here, we produced recombinant fiber-1 protein of FAdV-4, isolated from a Japanese HPS outbreak strain, JP/LVP-1/96, using a baculovirus expression system and evaluated its immunogenicity and protective efficacy. Recombinant fiber-1 protein induced high levels of neutralizing antibodies in immunized chickens, which were maintained for a minimum of 10 weeks. After being challenged with the virulent FAdV-4 strain JP/LVP-1/96, the immunized chickens did not exhibit clinical signs of infection or histopathological changes, there was a significant reduction in the viral load in various organs and total serum proteins, and albumin levels did not decline. These results suggest that the recombinant fiber-1 protein produced in this study can serve as a subunit vaccine to control HPS in chickens.
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25
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Chavan VG, Awandkar SP, Kulkarni MB, Chavhan SG, Kulkarni RC, Agnihotri AA. Molecular phylodynamics of fowl adenovirus serotype 11 and 8b from inclusion body hepatitis outbreaks. Virus Genes 2023; 59:148-157. [PMID: 36315316 DOI: 10.1007/s11262-022-01949-x] [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: 04/19/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022]
Abstract
Fowl adenovirus (FAdV) serotypes are involved in a variety of clinical manifestations in poultry and has resulted in substantial economic loss to the poultry farmers. Despite the endemicity of Inclusion body hepatitis (IBH) in South Asian countries, including India, its etiology is not well studied. In western India, the rural poultry flocks obtained from the vaccinated parents were experiencing disease outbreaks with substantial economic losses due to heavy outbreaks and mortality. Therefore, the study was conducted to decipher the molecular epidemiology of the FAdV from field outbreaks in western India. A total of 37 commercial broiler poultry flocks and 29 village poultry flocks of western India were visited during 2019 to 2021. Out of these, 19.14% flocks showed incidence of IBH during the age of 15 to 35 days. The mortality ranged from 3.3 percent to 55.28 percent. The samples were subjected for amplification of partial hexon gene covering loop 1 and loop 2. The results revealed 48.28% positivity by PCR. The sequence analysis identified 14 isolates as species D serotype 11 with 0.97 to 0.99% divergence and two as species E serotype 8b with 0.99% divergence. The FAdV-11 isolates showed amino acid substitutions D195N, T399A, N417S, and N496H. The amino acids I188 and N195 were conserved in FAdV-11. The molecular clock in Bayesian methods was used to determine most common ancestor. The isolates MH379249 and MH379248 were determined the most recent common ancestor for FAdV-11 and FAdV-8b isolates. The analysis suggested evolution of 10 FAdV-11 strains in 2012, and four FAdV-11 strains and two FAdV-8b strains in 2018.
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Affiliation(s)
- Vishranti G Chavan
- Department of Veterinary Microbiology, College of Veterinary & Animal Sciences, Maharashtra Animal & Fishery Sciences University, Udgir, India
| | - Sudhakar P Awandkar
- Department of Veterinary Microbiology, College of Veterinary & Animal Sciences, Maharashtra Animal & Fishery Sciences University, Udgir, India.
| | - Mahesh B Kulkarni
- Department of Veterinary Microbiology, College of Veterinary & Animal Sciences, Maharashtra Animal & Fishery Sciences University, Udgir, India
| | - Sambhaji G Chavhan
- Department of Veterinary Pathology, College of Veterinary & Animal Sciences, Maharashtra Animal & Fishery Sciences University, Udgir, India
| | - Ram C Kulkarni
- Department of Poultry Science, College of Veterinary & Animal Sciences, Maharashtra Animal & Fishery Sciences University, Udgir, India
| | - Aditya A Agnihotri
- Department of Veterinary Microbiology, College of Veterinary & Animal Sciences, Maharashtra Animal & Fishery Sciences University, Udgir, India
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26
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Cui N, Lu M, Sun S, Sun S, Xu C, Su S, Hrabchenko N, Huang Q. Illumina high-throughput sequencing for the genome of emerging fowl adenovirus D species and C species simultaneously. Poult Sci 2022; 102:102295. [PMID: 36436374 PMCID: PMC9706605 DOI: 10.1016/j.psj.2022.102295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 10/13/2022] [Accepted: 10/22/2022] [Indexed: 11/06/2022] Open
Abstract
In recent years, clinical cases of inclusion body hepatitis (IBH) and hydropericardium syndrome (HPS) have been emerging and increasing in chicken flocks worldwide. Mixed infections with 2 or more fowl adenovirus (FAdV) serotypes were common in these cases. Herein, we collected a clinical sample that was positive for FAdV from 40-day-old broilers with IBH and HPS symptoms in Shandong province of China and determined the complete genome of FAdVs on the Illumina HiSeq4000 platform. The results showed that the sample contained 2 FAdV strains of D species and C species and named SD1763-1 and SD1763-2 respectively. The genome of SD1763-1 strain was 43,913 nt in length, with a G+C content of 53.51%, whereas SD1763-2 strain was 43,721 nt in length, with a G+C content of 54.87%. Sequence alignment and phylogenetic analysis revealed that strain SD1763-1 was clustered together with serotype 2/11 of FAdV-D, and SD1763-2 was clustered together with FAdV-4. There is no recombination between the genomes of the 2 viruses of FAdV-D and FAdV-C in the present study. This is the first report of obtaining 2 genomic sequences of FAdV strains simultaneously by direct use of deep sequencing in one clinical individual chicken sample, which provided direct evidence for mixed infections of adenovirus serotypes in the clinic and enriched the genome data to explore the geographic biomarkers and virulence signatures of the genus Aviadenovirus.
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Affiliation(s)
- Ning Cui
- Shandong Key Laboratory of Animal Disease Control and Breeding; Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, PR China,Key Laboratory of Livestock and Poultry Multi-omics of MARA, PR China
| | - Mei Lu
- Weifang Engineering Vocational College, Qingzhou, China
| | - Shiping Sun
- Shandong Key Laboratory of Animal Disease Control and Breeding; Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, PR China,Key Laboratory of Livestock and Poultry Multi-omics of MARA, PR China,Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Veterinary Medicine, Shandong Agricultural University, Tai'an, China
| | - Shouli Sun
- Shandong Key Laboratory of Animal Disease Control and Breeding; Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, PR China,Key Laboratory of Livestock and Poultry Multi-omics of MARA, PR China
| | - Chuantian Xu
- Shandong Key Laboratory of Animal Disease Control and Breeding; Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, PR China,Key Laboratory of Livestock and Poultry Multi-omics of MARA, PR China
| | - Shuai Su
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Veterinary Medicine, Shandong Agricultural University, Tai'an, China,Corresponding author:
| | - Nataliia Hrabchenko
- Shandong Key Laboratory of Animal Disease Control and Breeding; Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, PR China,Key Laboratory of Livestock and Poultry Multi-omics of MARA, PR China
| | - Qinghua Huang
- Shandong Key Laboratory of Animal Disease Control and Breeding; Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, PR China,Key Laboratory of Livestock and Poultry Multi-omics of MARA, PR China
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27
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Wang B, Song M, Song C, Zhao S, Yang P, Qiao Q, Cong Y, Wang Y, Wang Z, Zhao J. An inactivated novel chimeric FAdV-4 containing fiber of FAdV-8b provides full protection against hepatitis-hydropericardium syndrome and inclusion body hepatitis. Vet Res 2022; 53:75. [PMID: 36175926 PMCID: PMC9523898 DOI: 10.1186/s13567-022-01093-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/22/2022] [Indexed: 01/07/2023] Open
Abstract
Fowl adenovirus serotype 4 (FAdV-4) and FAdV-8b are causative agents of hepatitis-hydropericardium syndrome (HHS) and inclusion body hepatitis (IBH), respectively. HHS and IBH co-infections were often reported in clinical, yet there are no commercially available bivalent vaccines for prevention and control of both FAdV-4 and -8b. In the present study, a chimeric FAdV-4 was firstly generated by substituting fiber-1 of FAdV-4 with fiber of FAdV-8b. The chimeric virus, rFAdV-4-fiber/8b, exhibited similar replication ability in vitro and pathogenicity in vivo to the parental wild type FAdV-4. A single dosage of vaccination with the inactivated rFAdV-4-fiber/8b induced high antibody titers against fiber-2 of FAdV-4 and fiber of FAdV-8b and provided full protection against FAdV-4 and -8b challenge. These results demonstrated that fiber of FAdV-8b could replace the role of fiber-1 of FAdV-4 in the process of viral infection, and rFAdV-4-fiber/8b could be used to make a potential bivalent vaccine for the control and prevention of HHS and IBH.
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Affiliation(s)
- Baiyu Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Mingzhen Song
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Congcong Song
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Shiyi Zhao
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Panpan Yang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Qilong Qiao
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Yanfang Cong
- National Animal Health Products for Engineering Technology Research Center, Qingdao, 266111, China
| | - Yanling Wang
- National Animal Health Products for Engineering Technology Research Center, Qingdao, 266111, China
| | - Zeng Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Jun Zhao
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China.
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28
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Complete Genome Analysis and Animal Model Development of Fowl Adenovirus 8b. Viruses 2022; 14:v14081826. [PMID: 36016448 PMCID: PMC9416599 DOI: 10.3390/v14081826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 11/16/2022] Open
Abstract
Inclusion body hepatitis (IBH), hydropericardium syndrome, and gizzard erosion associated with fowl adenovirus (FAdV) infection have caused notable economic losses worldwide. In 2020, severe IBH was observed in a layer chicken farm in Hebei Province, China. Liver samples were collected from layer chickens with severe IBH and virus isolation was performed in LMH cells. DNA sequence and bioinformatics analyses were conducted to determine the phylogenetic relationship and the pathogenicity assay was conducted in specific-pathogen-free (SPF) chickens. HeB20 strain was isolated and identified as FAdV-8b, and the complete genome was successfully sequenced (GenBank No. OK188966). Although widespread recombination in clinical strains has been reported within FAdVs, HeB20 showed some novel characteristics, and did not show any recombination, highlighting that recombinant and non-recombinant FAdV-8b coexist in the clinic poultry industry. Finally, pathogenicity animal model of HeB20 was developed and showed severe IBH and 10% mortality. Collectively, a new FAdV-8b strain (HeB20) was isolated and responsible for the severe IBH in layer chickens. Complete genome of HeB20 was sequenced and valuable for future epidemiological investigations. HeB20 was capable of inducing severe IBH and 10% mortality in SPF chickens; this animal model provides a powerful tool for the future vaccine development.
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29
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Hsp70 Inhibits the Replication of Fowl Adenovirus Serotype 4 by Suppressing Viral Hexon with the Assistance of DnaJC7. J Virol 2022; 96:e0080722. [PMID: 35852354 PMCID: PMC9364783 DOI: 10.1128/jvi.00807-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Fowl adenovirus serotype 4 (FAdV-4) infection results in serious hepatitis-hydropericardium syndrome (HHS) in broilers, which has caused great economic losses to the poultry industry; however, the specific host responses to FAdV-4 remain unknown. In this study, we identified 141 high-confidence protein-protein interactions (PPIs) between the main viral proteins (Hexon, Fiber 1, Fiber 2, and Penton bases) and host proteins via a liquid chromatography-tandem mass spectrometry (LC-MS/MS) assay. We found that heat shock protein 70 (Hsp70), the protein with the highest score, and its cofactor DnaJ heat shock protein 40 family member C7 (DnaJC7) could negatively regulate the replication of FAdV-4. Furthermore, the nucleotide binding domain (NBD) of Hsp70 and the J domain of DnaJC7 were necessary for inhibiting FAdV-4 replication. We verified that DnaJC7 as a bridge could bind to Hsp70 and Hexon, assisting the indirect interaction between Hsp70 and Hexon. In addition, we found that FAdV-4 infection strongly induced the expression of autophagy proteins and cellular Hsp70 in a dose-dependent manner. Blockage of Hexon by Hsp70 overexpression was significantly reduced when the autophagy pathway was blocked by the specific inhibitor chloroquine (CQ). Our results showed that Hsp70 was co-opted by DnaJC7 to interact with viral Hexon and inhibited Hexon through the autophagy pathway, leading to a considerable restriction of FAdV-4 replication. IMPORTANCE FAdV-4, as the main cause of HHS, has quickly spread all over the world in recent years, seriously threatening the poultry industry. The aim of this study was to identify the important host proteins that have the potential to regulate the life cycle of FAdV-4. We found that Hsp70 and DnaJC7 played crucial roles in regulating the amount of viral Hexon and extracellular viral titers. Moreover, we demonstrated that Hsp70 interacted with viral Hexon with the assistance of DnaJC7, followed by suppressing Hexon protein through the autophagy pathway. These results provide new insight into the role of the molecular chaperone complex Hsp70-DnaJC7 in FAdV-4 infection and suggest a novel strategy for anti-FAdV-4 drug development by targeting the specific interactions among Hsp70, DnaJC7 and Hexon.
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30
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Niu D, Feng J, Duan B, Shi Q, Li Y, Chen Z, Ma L, Liu H, Wang Y. Epidemiological survey of avian adenovirus in China from 2015 to 2021 and the genetic variability of highly pathogenic Fadv-4 isolates. INFECTION, GENETICS AND EVOLUTION : JOURNAL OF MOLECULAR EPIDEMIOLOGY AND EVOLUTIONARY GENETICS IN INFECTIOUS DISEASES 2022; 101:105277. [PMID: 35367686 DOI: 10.1016/j.meegid.2022.105277] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/22/2022] [Accepted: 03/28/2022] [Indexed: 12/20/2022]
Abstract
The prevalence of poultry adenovirus in China is determined using clinical diagnosis, molecular biological testing, serological testing, and LMH cell virus isolation. These methods can track and test key poultry and waterfowl breeding areas across the country. From 2015 to 2021, 9613 suspected adenovirus samples were collected from 28 provinces. After the first generation of gene sequencing, a total of 2210 hexo gene fragments were obtained. Among them, FAdV-1 type accounted for 7.65%, FAdV-2 type accounted for 5.34%, FAdV-3 type accounted for 2.04%, FAdV-4 type accounted for 38.24%, FAdV-5 type accounted for 2.17%, FAdV-6 type accounted for 0.32%, FAdV-7 type accounted for 0.77%, FAdV-8a type accounted for 10.63%, FAdV-8b type accounted for 11.58%, FAdV-9 type accounted for 0.50%, FAdV-10 type accounted for 8.10%, and FAdV-11 type accounted for 12.67%. A total of 877 FAdV strains were isolated from FAdV suspected samples by seeding LMH cells, and there were 475 FAdV-4 strains among them. A total of 473 isolates were highly pathogenic FAdV-4, and the percentage of amino acid homology with the highly pathogenic FAdV-4 reference strains was >99.1%. Two isolates were non-pathogenic, and the amino acid homology with the ON1 reference strain was >99.6%. Part of the amino acid positions of the hexon gene have mutations, including positions 188, 193, 195, 238, and 240.
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Affiliation(s)
- Dengyun Niu
- Tianjin Bohai Joint Institute of Agriculture and Animal Husbandry Industry Co., Ltd, Tianjin 300308, China
| | - Jingjing Feng
- Tianjin Bohai Joint Institute of Agriculture and Animal Husbandry Industry Co., Ltd, Tianjin 300308, China.
| | - Baomin Duan
- Tianjin Bohai Joint Institute of Agriculture and Animal Husbandry Industry Co., Ltd, Tianjin 300308, China
| | - Qiuying Shi
- Tianjin Bohai Joint Institute of Agriculture and Animal Husbandry Industry Co., Ltd, Tianjin 300308, China
| | - Ying Li
- Tianjin Bohai Joint Institute of Agriculture and Animal Husbandry Industry Co., Ltd, Tianjin 300308, China
| | - Zhuo Chen
- Tianjin Bohai Joint Institute of Agriculture and Animal Husbandry Industry Co., Ltd, Tianjin 300308, China
| | - Lifang Ma
- Tianjin Bohai Joint Institute of Agriculture and Animal Husbandry Industry Co., Ltd, Tianjin 300308, China
| | - Haixia Liu
- Tianjin Ringpu Biotechnology Co., Ltd, Tianjin 300308, China
| | - Yanxiao Wang
- Tianjin Ringpu Biotechnology Co., Ltd, Tianjin 300308, China
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31
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Jia Z, Pan X, Zhi W, Chen H, Bai B, Ma C, Ma D. Probiotics Surface-Delivering Fiber2 Protein of Fowl Adenovirus 4 Stimulate Protective Immunity Against Hepatitis-Hydropericardium Syndrome in Chickens. Front Immunol 2022; 13:919100. [PMID: 35837390 PMCID: PMC9273852 DOI: 10.3389/fimmu.2022.919100] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/27/2022] [Indexed: 12/19/2022] Open
Abstract
Background and ObjectivesHepatitis-hydropericardium syndrome (HHS) caused by Fowl adenoviruses serotype 4 (FAdV-4) leads to severe economic losses to the poultry industry. Although various vaccines are available, vaccines that effectively stimulate intestinal mucosal immunity are still deficient. In the present study, novel probiotics that surface-deliver Fiber2 protein, the major virulence determiner and efficient immunogen for FAdV-4, were explored to prevent this fecal–oral-transmitted virus, and the induced protective immunity was evaluated after oral immunization.MethodsThe probiotic Enterococcus faecalis strain MDXEF-1 and Lactococcus lactis NZ9000 were used as host strains to deliver surface-anchoring Fiber2 protein of FAdV-4. Then the constructed live recombinant bacteria were orally vaccinated thrice with chickens at intervals of 2 weeks. Following each immunization, immunoglobulin G (IgG) in sera, secretory immunoglobulin A (sIgA) in jejunum lavage, immune-related cytokines, and T-cell proliferation were detected. Following challenge with the highly virulent FAdV-4, the protective effects of the probiotics surface-delivering Fiber2 protein were evaluated by verifying inflammatory factors, viral load, liver function, and survival rate.ResultsThe results demonstrated that probiotics surface-delivering Fiber2 protein stimulated humoral and intestinal mucosal immune responses in chickens, shown by high levels of sIgA and IgG antibodies, substantial rise in mRNA levels of cytokines, increased proliferative ability of T cells in peripheral blood, improved liver function, and reduced viral load in liver. Accordingly, adequate protection against homologous challenges and a significant increase in the overall survival rate were observed. Notably, chickens orally immunized with E. faecalis/DCpep-Fiber2-CWA were completely protected from the FAdV-4 challenge, which is better than L. lactis/DCpep-Fiber2-CWA.ConclusionThe recombinant probiotics surface-expressing Fiber2 protein could evoke remarkable humoral and cellular immune responses, relieve injury, and functionally damage target organs. The current study indicates a promising method used for preventing FAdV-4 infection in chickens.
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Affiliation(s)
- Zhipeng Jia
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xinghui Pan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Wenjing Zhi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Hang Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Bingrong Bai
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Chunli Ma
- College of Food Science, Northeast Agricultural University, Harbin, China
- *Correspondence: Chunli Ma, ; Dexing Ma,
| | - Dexing Ma
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Experimental Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
- *Correspondence: Chunli Ma, ; Dexing Ma,
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The Role of Hexon Amino Acid 188 Varies in Fowl Adenovirus Serotype 4 Strains with Different Virulence. Microbiol Spectr 2022; 10:e0149322. [PMID: 35587634 PMCID: PMC9241812 DOI: 10.1128/spectrum.01493-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Hepatitis-hydropericardium syndrome (HHS) induced by fowl adenovirus serotype 4 (FAdV-4) has caused huge economic losses to poultry industries. The key genes responsible for different virulence of FAdV-4 strains are not fully elucidated. Previous studies indicated that hexon of pathogenic FAdV-4 has a conserved arginine (R) at position 188, and a conserved isoleucine (I) is present at this position in reported nonpathogenic FAdV-4. Recently, it was reported that R188 of hexon is the determinant site for pathogenicity of the emerging Chinese FAdV-4 strain. However, the role of hexon amino acid 188 (aa188) has not been examined in the nonpathogenic FAdV-4 strain. In this study, three recombinant FAdV-4 viruses, H/H/R188I, O/O/I188R, and H/O/I188R, were constructed by mutating hexon aa188 of FAdV-4 pathogenic strain CH/HNJZ/2015 (H) and nonpathogenic strain ON1 (O), and pathogenicity was assessed in specific-pathogen-free (SPF) chickens. Consistent with previous findings, H/O/I188R exhibited pathogenicity similar to that of CH/HNJZ/2015, yet H/H/R188I induced no mortality. Unexpectedly, all chickens infected with O/O/I188R survived. Postmortem examination of O/O/I188R-infected chickens showed typical lesions of inclusion body hepatitis rather than HHS. Expression of proinflammatory cytokines in CH/HNJZ/2015- and H/O/I188R-infected chickens was significantly higher than that in H/H/R188I-, ON1-, and O/O/I188R-infected chickens. Analysis of predicted hexon protein structures indicated that aa188 mutation leads to conformational changes in the L1 loop of HNJZ-hexon but not in ON1-hexon. In summary, the present study demonstrated that the role of hexon aa188 in the virulence of FAdV-4 varies between different strains. Induction of HHS requires factors aside from hexon aa188 in the emerging Chinese FAdV-4 strain. IMPORTANCE HHS induced by FAdV-4 has caused huge economic losses to the poultry industry. The key determinants for the different virulence of FAdV-4 have not been fully elucidated. Here, we investigated the role of hexon aa188 in FAdV-4 strains with different virulence and showed that the role of hexon aa188 varies in FAdV-4 strains with different genetic contents. The hexon R188 may be the key amino acid for causing inclusion body hepatitis by the pathogenic FAdV-4 strain, and induction of HHS by FAdV-4 may need other viral cofactors. Moreover, the hexon R188I mutation greatly affected the expression of proinflammatory cytokines induced by the pathogenic strain CH/HNJZ/2015, but no significant difference was observed between the nonpathogenic strain ON1 and ON1 with hexon I188R mutation. We found that hexon aa188 mutation induced conformational changes to hexon protein in CH/HNJZ/2015 but not in ON1, which might be the underlying reason for the changing virulence.
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Cellular protein HSC70 promotes fowl adenovirus serotype 4 replication in LMH cells via interacting with viral 100K protein. Poult Sci 2022; 101:101941. [PMID: 35679674 PMCID: PMC9189218 DOI: 10.1016/j.psj.2022.101941] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 04/16/2022] [Accepted: 04/25/2022] [Indexed: 11/22/2022] Open
Abstract
Fowl adenovirus serotype 4 (FAdV-4), the predominant causative agent of hepatitis-hydropericardium syndrome (HHS), has caused severe economic losses to poultry industry since 2015. Although fiber2 and hexon have been confirmed to be the virulence-related factors, the roles of nonstructural viral proteins in pathogenicity of FAdV-4 remain poorly understood. Here, a tandem mass spectrometry (MS) was used to identify host factors interacted with 100K protein of hypervirulent FAdV-4 isolate (CH/HNJZ/2015), and 2595 cellular proteins associated with many biological processes and pathways were identified according to Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses. Among the proteins, HSC70 was verified to interact with 100K through co-immunoprecipitation assay. Notably, overexpression of HSC70 promoted the replication of FAdV-4 in LMH cells, whereas blocking HSC70 with inhibitor ver-155008 markedly suppressed viral replication. Collectively, these findings suggested that many cellular proteins involved in FAdV-4 infection through interacting with 100K and HSC70 positively regulated virus replication.
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Ishag HZA, Terab AMA, El Tigani-Asil ETA, Bensalah OK, Khalil NAH, Khalafalla AI, Al Hammadi ZMAH, Shah AAM, Al Muhairi SSM. Pathology and Molecular Epidemiology of Fowl Adenovirus Serotype 4 Outbreaks in Broiler Chicken in Abu Dhabi Emirate, UAE. Vet Sci 2022; 9:vetsci9040154. [PMID: 35448652 PMCID: PMC9032256 DOI: 10.3390/vetsci9040154] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/12/2022] [Accepted: 03/18/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Fowl adenovirus serotype 4 (FAdV-4), causing inclusion body hepatitis (IBH) and hydropericardium hepatitis syndrome (HPS), is responsible for the significant economic losses in poultry industry worldwide. This study describes FAdV disease and molecular characteristics of the virus as the first report in UAE. METHODOLOGY Clinical, necropsy, histopathology, qPCR and phylogenetic analysis of hexon gene were used to diagnose and characterize the virus. RESULTS The age of the infected broiler chicken was 2-4 weeks. The morbidity and mortality rates ranged between 50 and 100% and 44 and 100%, respectively. Clinically, sudden onset, diarrhea, anemia and general weakness were recorded. At necropsy, acute necrotic hepatitis, with swollen, yellowish discoloration, enlarged and friable liver; hydropericarditis with hydropericardium effusions; and enlarged mottled spleen were observed. Histopathology examination revealed degeneration and necrosis, lymphocytic infiltration and inclusion bodies. The qPCR analysis detected the virus in all samples tested. Hexon gene sequence analysis identified FAdV serotype 4, species C as the major cause of FAdV infections in UAE in 2020, and this strain was closely related to FAdV-4 circulating in Saudi Arabia, Pakistan, Nepal and China. CONCLUSION The serotype 4, species C, was the common FAdV strain causing IBH and HPS episodes in the region. This result may help design effective vaccination programs that rely on field serotypes.
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Xie Q, Wang W, Kan Q, Mu Y, Zhang W, Chen J, Li L, Fu H, Li T, Wan Z, Gao W, Shao H, Qin A, Ye J. FAdV-4 without Fiber-2 Is a Highly Attenuated and Protective Vaccine Candidate. Microbiol Spectr 2022; 10:e0143621. [PMID: 35107364 PMCID: PMC8809343 DOI: 10.1128/spectrum.01436-21] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 12/05/2021] [Indexed: 01/05/2023] Open
Abstract
Hepatitis-hydropericardium syndrome (HHS) caused by the highly pathogenic fowl adenovirus serotype 4 (FAdV-4) has resulted in huge economic losses to the poultry industry globally. The fiber-2 gene, as a major virulence determiner, is also an important vaccine target against FAdV-4. In this study, we used a CRISPR/Cas9-based homology-dependent recombinant technique to replace the fiber-2 gene with egfp and generate a novel recombinant virus, designated FAdV4-EGFP-rF2. Although FAdV4-EGFP-rF2 showed low replication ability compared to the wild-type FAdV-4 in LMH cells, FAdV4-EGFP-rF2 could effectively replicate in LMH-F2 cells with the expression of Fiber-2. Moreover, FAdV4-EGFP-rF2 was not only highly attenuated in chickens, but also could provide efficient protection against a lethal challenge of FAdV-4. Moreover, FAdV4-EGFP-rF2 without fiber-2 could induce neutralizing antibodies at the same level as FA4-EGFP with fiber-2. These results clearly demonstrate that although fiber-2 affects the viral replication and pathogenesis of FAdV-4, it is not necessary for virus replication and induction of neutralizing antibodies; these findings provide novel insights into the roles of fiber-2 and highlight fiber-2 as an insertion site for generating live-attenuated FAdV-4 vaccines against FAdV-4 and other pathogens. IMPORTANCE Among all serotypes of fowl adenovirus, serotypes FAdV-1, FAdV-4, and FAdV-10 are unique members with two fiber genes (fiber-1 and fiber-2). Recent studies reveal that Fiber-1, not Fiber-2, directly triggers viral infection of FAdV-4, whereas Fiber-2, but not Fiber-1, has been identified as the major virulence determiner and an efficient protective immunogen for subunit vaccines. Here, we replaced fiber-2 with egfp to generate a novel recombinant virus, designated FAdV4-EGFP-rF2. In vitro and in vivo studies on FAdV4-EGFP-rF2 revealed that fiber-2 was not necessary for either virus replication or efficient protection for FAdV-4; these results not only provide a novel live-attenuated vaccine candidate against HHS, but also give new ideas for generating a FAdV-4 based vaccine vector against other pathogens.
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Affiliation(s)
- 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, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Qiuqi Kan
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Yaru Mu
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Wei Zhang
- Sinopharm Yangzhou VAC Biological Engineering Co. Ltd., Yangzhou, Jiangsu, China
| | - Jian Chen
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Luyuan Li
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Hui Fu
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
| | - Wei Gao
- Key Laboratory of Jiangsu Preventive Veterinary Medicine, Key Laboratory for Avian Preventive Medicine, Ministry of Education, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 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, Jiangsu, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, Jiangsu, China
- Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, Jiangsu, China
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Mase M, Tanaka Y, Iseki H, Watanabe S. Genomic characterization of a fowl adenovirus serotype 4 strain isolated from a chicken with hydropericardium syndrome in Japan. Arch Virol 2022; 167:1191-1195. [PMID: 35182243 DOI: 10.1007/s00705-022-05390-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 01/07/2022] [Indexed: 11/28/2022]
Abstract
Here, we report the genomic characterization of a fowl adenovirus serotype 4 strain isolated from a chicken with hydropericardium syndrome in Japan. The viral genome of FAdV-4 strain JP/LVP-1/96 was found to be 45,688 bp long. Amino acid substitutions at position 219 (G to D) in the fiber-2 protein and at position 188 (I to R) in the hexon protein, which are commonly found in virulent FAdV-4 strains, were also found in the JP/LVP-1/96 strain. Additional specific amino acid substitutions commonly found in virulent FAdV-4 strains were found in ORFs 4 and 43, which are present only in members of the species Fowl adenovirus C. Phylogenetic analysis based on complete hexon protein gene sequences showed that strain JP/LVP-1/96 belongs to a different genetic cluster from the strains circulating in neighboring countries.
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Affiliation(s)
- Masaji Mase
- National Institute of Animal Health, National Agriculture and Food Research Organization (NARO), 3-1-5 Kannondai, Tsukuba, Ibaraki, 305-0856, Japan. .,United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu, 501-1193, Japan. .,Division of Zoonosis Research, National Institute of Animal Health, National Agriculture and Food Research Organization (NARO), 3-1-5 Kannondai, Tsukuba, Ibaraki, 305-0856, Japan.
| | - Yuko Tanaka
- Kyoto Prefectural Chutan Livestock Hygiene Center, 371-2 Handa Fukuchiyama, Kyoto, 602-8570, Japan
| | - Hiroshi Iseki
- National Institute of Animal Health, National Agriculture and Food Research Organization (NARO), 3-1-5 Kannondai, Tsukuba, Ibaraki, 305-0856, Japan
| | - Satoko Watanabe
- National Institute of Animal Health, National Agriculture and Food Research Organization (NARO), 3-1-5 Kannondai, Tsukuba, Ibaraki, 305-0856, Japan
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High Phenotypic Variation between an In Vitro-Passaged Fowl Adenovirus Serotype 1 (FAdV-1) and Its Virulent Progenitor Strain despite Almost Complete Sequence Identity of the Whole Genomes. Viruses 2022; 14:v14020358. [PMID: 35215948 PMCID: PMC8880033 DOI: 10.3390/v14020358] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/21/2022] [Accepted: 02/07/2022] [Indexed: 02/01/2023] Open
Abstract
Adenoviral gizzard erosion is an emerging disease with negative impact on health and production of chickens. In this study, we compared in vitro and in vivo characteristics of a fowl adenovirus serotype 1 (FAdV-1), attenuated by 53 consecutive passages in primary chicken embryo liver (CEL) cell cultures (11/7127-AT), with the virulent strain (11/7127-VT). Whole genome analysis revealed near-complete sequence identity between the strains. However, a length polymorphism in a non-coding adenine repeat sequence (11/7127-AT: 11 instead of 9) immediately downstream of the hexon open reading frame was revealed. One-step growth kinetics showed delayed multiplication of 11/7127-AT together with significantly lower titers in cell culture (up to 4 log10 difference), indicating reduced replication efficiency in vitro. In vivo pathogenicity and immunogenicity were determined in day-old specific pathogen-free layer chicks inoculated orally with the respective viruses. In contrast to birds infected with 11/7127-VT, birds infected with 11/7127-AT did not exhibit body weight loss or severe pathological lesions in the gizzard. Virus detection rates, viral load in organs and virus excretion were significantly lower in birds inoculated with 11/7127-AT. Throughout the experimental period, these birds did not develop measurable neutralizing antibodies, prevalent in birds in response to 11/7127-VT infection. Differences in pathogenicity between the virulent FAdV-1 and the attenuated strain could not be correlated to prominently discriminate genomic features. We conclude that differential in vitro growth profiles indicate that attenuation is linked to modulation of viral replication during interaction of the virus with the host cells. Thus, hosts would be unable to prevent the rapid replication of virulent FAdV leading to severe tissue damage, a phenomenon broadly applicable to further FAdV serotypes, considering the substantial intra-serotype virulence differences of FAdVs and the variation of diseases.
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38
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Immunity analysis against Fowl Adenovirus serotype 4 (FAdV-4) based on Fiber-2 trimer Protein with the different virulence. Virus Res 2022; 308:198652. [PMID: 34879243 DOI: 10.1016/j.virusres.2021.198652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/01/2021] [Accepted: 12/03/2021] [Indexed: 11/21/2022]
Abstract
Since June 2015, Fowl adenovirus outbreaks have occurred in China, causing significant economic losses to poultry industry. The FAdV-4 Fiber-2 proteins could induce effective protection, but the precise mechanism of immune protection remains unknown. Here, we have compared the biological characteristics of Fiber-2 protein of the very virulent WZ strain of FAdV-4 (vvFAdV-4) with that of non-virulent ON1 strain. The sequence analysis revealed natural deletions and sequence differences between the classical non-pathogenic strain ON1 and the vvFAdV-4 isolate. These two Fiber-2 proteins successfully expressed in E. coli resemble in structure and function to the native-like trimeric protein. The trimeric structure and bioreactivity of the recombinant Fiber-2 proteins to FAdV-4 specific antibodies were characterized. The immune protection induced by Fiber-2 proteins of FAdV-4 WZ and ON1 strains were compared in SPF chickens. All birds in the WZ-Fiber-2 immunized group generated systemic specific antibodies compared with both ON1-Fiber-2 protein and PBS immunized groups. According to the results of attack mortalities, viral shedding and tissue gross lesion, the WZ Fiber-2 protein induced complete protection at a dose of 2 μg per chicken, whereas the ON1-Fiber-2 protein induced 0 protection at 3 dpc. In view of the characteristics of Fiber-2 proteins of different strains, this study can help us to further understand the mechanism of protective immunity and provide a basis for the prevention and control of FAdV-4 in chickens.
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Mu Y, Xie Q, Wang W, Lu H, Lian M, Gao W, Li T, Wan Z, Shao H, Qin A, Ye J. A Novel Fiber-1-Edited and Highly Attenuated Recombinant Serotype 4 Fowl Adenovirus Confers Efficient Protection Against Lethal Challenge. Front Vet Sci 2021; 8:759418. [PMID: 34881318 PMCID: PMC8646089 DOI: 10.3389/fvets.2021.759418] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 10/25/2021] [Indexed: 12/05/2022] Open
Abstract
Currently, a fatal disease of hepatitis-hydropericardium syndrome (HHS) caused by serotype 4 fowl adenovirus (FAdV-4) has spread worldwide and resulted in tremendous economic losses to the poultry industry. Various vaccines against FAdV-4 were developed to control the disease; however, few live-attenuated vaccines were available. In this study, we targeted the N-terminal of fiber-1 and rescued a recombinant virus FAdV4-RFP_F1 expressing the fusion protein of RFP and Fiber-1 based on the CRISPR/Cas9 technique. In vitro studies showed that FAdV4-RFP_F1 replicated slower than the wild type FAdV-4, but the peak viral titer of FAdV4-RFP_F1 could still reach 107.0 TCID50/ml with high stability in LMH cells. Animal studies found that FAdV4-RFP_F1 not only was highly attenuated to the 2-week-old SPF chickens, but could also provide efficient protection against lethal challenge of FAdV-4. All these demonstrate that the recombinant virus FAdV4-RFP_F1 could be as an efficient live-attenuated vaccine candidate for FAdV-4, and the N-terminal of fiber-1 could be as a potential insertion site for expressing foreign genes to develop FAdV-4-based vaccine.
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Affiliation(s)
- Yaru Mu
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Quan Xie
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Weikang Wang
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Hao Lu
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Mingjun Lian
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Wei Gao
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Tuofan Li
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Zhimin Wan
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Hongxia Shao
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Aijian Qin
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
| | - Jianqiang Ye
- Ministry of Education Key Laboratory for Avian Preventive Medicine, Key Laboratory of Jiangsu Preventive Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.,Institutes of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou, China
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40
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Sahindokuyucu I, Turkmen MB, Sumer T, Elhag AE, Alcigir ME, Yazici Z, Barry G, Gulbahar MY, Kul O. First detection and molecular characterisation of a pigeon aviadenovirus A and pigeon circovirus co-infection associated with Young Pigeon Disease Syndrome (YPDS) in Turkish pigeons (Columba livia domestica). Vet Med Sci 2021; 8:139-149. [PMID: 34729940 PMCID: PMC8788887 DOI: 10.1002/vms3.662] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Pigeon aviadenovirus A and Pigeon circovirus are both DNA viruses, infect and cause severe clinical diseases in pigeons. These viruses are associated with an immunosuppression syndrome similar to ‘Young Pigeon Disease Syndrome’ (YPDS). This study reports the identification of a natural co‐infection, with severe clinical signs (crop vomiting, watery diarrhoea, anorexia and sudden death) of Pigeon aviadenovirus A and Pigeon circovirus in a breeding pigeon flock in Central Anatolia, Turkey. Both viruses were isolated from pigeons pooled internal organs using primary chicken embryo kidney cell cultures (CEKC) and specific pathogen‐free (SPF) embryonated chicken eggs. Also, both viruses were identified by PCR amplification followed by Sanger sequencing whereas histopathological examination showed degenerated hepatocytes with basophilic intranuclear viral inclusions. As known, both viruses typically have similar transmission characteristics and common clinical manifestations; however, co‐infection may exacerbate the disease with devastating outcomes. This is the first report of its kind in Turkey for those viruses and is essential for the protection against these kinds of infections in pigeons.
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Affiliation(s)
- Ismail Sahindokuyucu
- Poultry Diseases Diagnostic Laboratory, Bornova Veterinary Control Institute, Ministry of Agriculture and Forestry, Izmir, Turkey
| | - Merve Biskin Turkmen
- Faculty of Veterinary Medicine, Department of Veterinary Pathology, Kirikkale University, Kirikkale, Turkey
| | - Tugce Sumer
- Faculty of Veterinary Medicine, Department of Veterinary Pathology, Kirikkale University, Kirikkale, Turkey
| | - Ahmed Eisa Elhag
- Faculty of Veterinary Medicine, Department of Veterinary Virology, Ondokuz Mayis University, Samsun, Turkey.,Faculty of Veterinary Sciences, Department of Preventive Medicine and Clinical Studies, University of Gadarif, Al Qadarif, Sudan
| | - Mehmet Eray Alcigir
- Faculty of Veterinary Medicine, Department of Veterinary Pathology, Kirikkale University, Kirikkale, Turkey
| | - Zafer Yazici
- Faculty of Veterinary Medicine, Department of Veterinary Virology, Ondokuz Mayis University, Samsun, Turkey
| | - Gerald Barry
- Veterinary Science Center, School of Veterinary Medicine, University College of Dublin, Belfield, Dublin, Ireland
| | - Mustafa Yavuz Gulbahar
- Faculty of Veterinary Medicine, Department of Veterinary Pathology, Ondokuz Mayis University, Samsun, Turkey
| | - Oguz Kul
- Faculty of Veterinary Medicine, Department of Veterinary Pathology, Kirikkale University, Kirikkale, Turkey
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41
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Sohaimi NM, Hair-Bejo M. A recent perspective on fiber and hexon genes proteins analyses of fowl adenovirus toward virus infectivity-A review. Open Vet J 2021; 11:569-580. [PMID: 35070851 PMCID: PMC8770197 DOI: 10.5455/ovj.2021.v11.i4.6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 09/21/2021] [Indexed: 11/06/2022] Open
Abstract
Fowl adenovirus (FAdV) is a double-stranded DNA virus with a non-enveloped structure comprising three major proteins known as hexon, penton, and fiber. Molecular analysis which emphasizes on hexon and fiber proteins is currently the major focus of curiosity for FAdV antigenicity and pathogenicity. Recently, disease outbreaks associated with FAdV infections such as inclusion body hepatitis, hepatitis hydropericardium syndrome, and gizzard erosion, were commonly reported and continue to increase worldwide. Studies on the virulence gene of the virus were intensively conducted to provide a better understanding on the role of these major capsid proteins in the development of a safe and effective vaccine against the disease in the poultry industry. This paper highlights the variations of the fiber and hexon genes, their importance in genotypes and serotypes differentiation, and infectivity between FAdV strains. It appears that the L1 loop of hexon and the knob of fiber genes are the infectivity markers for FAdV infection. The fiber-2 protein plays a major role in FAdV pathogenicity than the hexon protein, while the fiber-1 protein is important for viral replication and assembly, regardless of virulence capability instead of infectivity. The hexon protein plays a major role in virus infectivity and tissue tropism. These findings could further enhance the knowledge of FAdV strains’ classification and evolution, diagnosis, and strategies to prevent and control FAdV infection and outbreaks in chicken farms.
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Affiliation(s)
- Norfitriah Mohamed Sohaimi
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.,Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Mohd Hair-Bejo
- Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia.,Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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42
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Wang L, Zheng L, Jiang S, Li X, Lu C, Zhang L, Ren W, Li C, Tian X, Li F, Yan M. Isolation, identification and genetic characterization analysis of a fowl aviadenovirus serotype 4 strain from Tianjin, China. INFECTION GENETICS AND EVOLUTION 2021; 96:105078. [PMID: 34508884 DOI: 10.1016/j.meegid.2021.105078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/19/2021] [Accepted: 09/05/2021] [Indexed: 11/19/2022]
Abstract
A fowl aviadenovirus serotype 4 (FAdV-4), Y17215-1, was isolated from the liver of chickens with Hydropericardium-hepatitissyndrome(HHS) in a chicken farm of Tianjin, China. Obvious cytopathic effects were observed in the infected chicken liver hepatocellular carcinoma cell line (LMH cells) at 24 h post infection (hpi), which consisted of enlarger and rounder shape of cells. The typical and specific green fluorescence was observed by indirect immunofluorescence assay (IFA). Tissue Culture Infectious Dose50 (TCID50) of it measured after five stable passage in LMH cells reached 106.5TCID50/0.1 mL. The strain was inoculated through allantoic membrane of 10-day specific pathogen free(SPF) Chick embryos, the thicker allantoic membranes were observed at 120 hpi. 7-day-old SPF chickens were inoculated with the strain via intramuscular (i.m.) or intranasal (i.n.) injection which resulted in 100% mortality of test chickens. Additionally, the sickness and death of cohabitation chickens in the test group were observed which indicated that the virus can infect healthy chickens by horizontal transmission. The sick chickens showed depression, anorexia and diarrhea with green watery feces. Y17215-1-inoculated chickens mainly presented swollen liver with blood spot, and the enhancement of effusion or yellow gel like effusion that were observed in the pericardium through necropsy. Histopathological examination showed focal necrosis of hepatocytes and characteristic eosinophilic inclusion bodies in the cytoplasm. The results showed that the Y17215-1 isolate had high pathogenicity to SPF chickens. The phylogenetic analysis of the major structural proteins including hexon, fiber-1 and fiber-2 revealed that Y17215-1 strain belongs to C species of fowl aviadenovirus of aviadenovirus family, and has high homology with other Chinese strains isolated in recent years, but was distinct from ON1、MX-SHP95、KR5 and other foreign isolates. This study laid a foundation for further study of epidemiological investigation, pathogenic mechanism as well as the diagnosis and control technology of FAdV-4.
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Affiliation(s)
- Lili Wang
- Animal Husbandry and Veterinary Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China; Tianjin Scientific Observation Experiment Station for Veterinary Medicine and Diagnosis Technology, the Ministry of Agriculture and Rural Affairs of China, Tianjin 300381, China; Tianjin Engineering Research Center for Livestock and Poultry Health Breeding, Tianjin, China
| | - Li Zheng
- Animal Husbandry and Veterinary Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China; Tianjin Scientific Observation Experiment Station for Veterinary Medicine and Diagnosis Technology, the Ministry of Agriculture and Rural Affairs of China, Tianjin 300381, China; Tianjin Engineering Research Center for Livestock and Poultry Health Breeding, Tianjin, China
| | - Shan Jiang
- Animal Husbandry and Veterinary Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China; Tianjin Scientific Observation Experiment Station for Veterinary Medicine and Diagnosis Technology, the Ministry of Agriculture and Rural Affairs of China, Tianjin 300381, China; Tianjin Engineering Research Center for Livestock and Poultry Health Breeding, Tianjin, China
| | - Xiuli Li
- Animal Husbandry and Veterinary Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China; Tianjin Scientific Observation Experiment Station for Veterinary Medicine and Diagnosis Technology, the Ministry of Agriculture and Rural Affairs of China, Tianjin 300381, China; Tianjin Engineering Research Center for Livestock and Poultry Health Breeding, Tianjin, China
| | - Chao Lu
- Animal Husbandry and Veterinary Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China; Tianjin Scientific Observation Experiment Station for Veterinary Medicine and Diagnosis Technology, the Ministry of Agriculture and Rural Affairs of China, Tianjin 300381, China; Tianjin Engineering Research Center for Livestock and Poultry Health Breeding, Tianjin, China
| | - Li Zhang
- Animal Husbandry and Veterinary Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China; Tianjin Scientific Observation Experiment Station for Veterinary Medicine and Diagnosis Technology, the Ministry of Agriculture and Rural Affairs of China, Tianjin 300381, China; Tianjin Engineering Research Center for Livestock and Poultry Health Breeding, Tianjin, China
| | - Weike Ren
- Animal Husbandry and Veterinary Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China; Tianjin Scientific Observation Experiment Station for Veterinary Medicine and Diagnosis Technology, the Ministry of Agriculture and Rural Affairs of China, Tianjin 300381, China; Tianjin Engineering Research Center for Livestock and Poultry Health Breeding, Tianjin, China
| | - Cheng Li
- Animal Husbandry and Veterinary Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China; Tianjin Scientific Observation Experiment Station for Veterinary Medicine and Diagnosis Technology, the Ministry of Agriculture and Rural Affairs of China, Tianjin 300381, China; Tianjin Engineering Research Center for Livestock and Poultry Health Breeding, Tianjin, China
| | - Xiangxue Tian
- Animal Husbandry and Veterinary Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China; Tianjin Scientific Observation Experiment Station for Veterinary Medicine and Diagnosis Technology, the Ministry of Agriculture and Rural Affairs of China, Tianjin 300381, China; Tianjin Engineering Research Center for Livestock and Poultry Health Breeding, Tianjin, China
| | - Fuqiang Li
- Animal Husbandry and Veterinary Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China; Tianjin Scientific Observation Experiment Station for Veterinary Medicine and Diagnosis Technology, the Ministry of Agriculture and Rural Affairs of China, Tianjin 300381, China; Tianjin Engineering Research Center for Livestock and Poultry Health Breeding, Tianjin, China
| | - Minghua Yan
- Animal Husbandry and Veterinary Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China; Tianjin Scientific Observation Experiment Station for Veterinary Medicine and Diagnosis Technology, the Ministry of Agriculture and Rural Affairs of China, Tianjin 300381, China; Tianjin Engineering Research Center for Livestock and Poultry Health Breeding, Tianjin, China.
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Hu J, Li G, Wang X, Cai L, Rong M, Li H, Xie M, Zhang Z, Rong J. Development of a subunit vaccine based on fiber2 and hexon against fowl adenovirus serotype 4. Virus Res 2021; 305:198552. [PMID: 34454971 DOI: 10.1016/j.virusres.2021.198552] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 08/15/2021] [Accepted: 08/17/2021] [Indexed: 01/06/2023]
Abstract
Hepatitis-hydropericardium syndrome (HHS) is widespread in China and causes high chicken mortality that results in great economic losses. A safe and effective vaccine is needed, and a subunit vaccine has potential for development. In this study, a truncated region of the FAdV-4 fiber 2 fused with coding sequence of one epitope of hexon was expressed in a prokaryotic expression system, and the immune protective effects of different doses of recombinant fiber 2 subunit vaccine on SPF chickens were compared. The recombinant fiber2 (Gly275- Pro479 aa)-hexon (Met21-Val51 aa) protein (rFH) obtained in Escherichia coli showed good solubility. The chicken survival rate at the lowest dose (2.5 μg/bird) was 75% (6/8), and at higher doses (≥5 μg/bird) was 100% (8/8) in challenge experiment. Two chickens in the 2.5 μg/bird treatment showed severe lesions, while birds in the higher dose treatments showed no obvious tissue damage as determined by histopathologic analysis of liver and spleen. Absolute quantitative real-time PCR showed no viral load in the ≥5 μg/bird treatments, but two chickens in the 2.5 μg/bird treatment had high viral loads. The challenge experience demonstrated that the rFH vaccine provided 100% protection at ≥5 μg/bird. These results suggested that rFH protein as an effective vaccine to protect against FAdV-4 and provided a new idea for the development of vaccine against HHS.
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Affiliation(s)
- Jixiong Hu
- College of Life Science, Yangtze University, No. 88 Jingmi Road, Jingzhou, Hubei 434000, PR China
| | - Guopan Li
- College of Life Science, Yangtze University, No. 88 Jingmi Road, Jingzhou, Hubei 434000, PR China
| | - Xi Wang
- Jingzhou Changxin Biotechnology Co., Ltd., Jingzhou, Hubei 434000, PR China
| | - Lianshen Cai
- State Key Laboratory of Animal Genetic Engineering Vaccine, Qingdao Yebio Biological Engineering Co., Ltd., Qingdao, Shandong 266000, PR China
| | - Mingxuan Rong
- College of Life Science, Yangtze University, No. 88 Jingmi Road, Jingzhou, Hubei 434000, PR China
| | - Huan Li
- College of Life Science, Yangtze University, No. 88 Jingmi Road, Jingzhou, Hubei 434000, PR China
| | - Ming Xie
- College of Life Science, Yangtze University, No. 88 Jingmi Road, Jingzhou, Hubei 434000, PR China
| | - Zhixiang Zhang
- College of Life Science, Yangtze University, No. 88 Jingmi Road, Jingzhou, Hubei 434000, PR China
| | - Jun Rong
- College of Life Science, Yangtze University, No. 88 Jingmi Road, Jingzhou, Hubei 434000, PR China; State Key Laboratory of Animal Genetic Engineering Vaccine, Qingdao Yebio Biological Engineering Co., Ltd., Qingdao, Shandong 266000, PR China.
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44
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Zhang Y, Liu A, Wang Y, Cui H, Gao Y, Qi X, Liu C, Zhang Y, Li K, Gao L, Pan Q, Wang X. A Single Amino Acid at Residue 188 of the Hexon Protein Is Responsible for the Pathogenicity of the Emerging Novel Virus Fowl Adenovirus 4. J Virol 2021; 95:e0060321. [PMID: 34133902 PMCID: PMC8354325 DOI: 10.1128/jvi.00603-21] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/07/2021] [Indexed: 12/15/2022] Open
Abstract
Since 2015, severe hydropericardium-hepatitis syndrome (HHS) associated with a novel fowl adenovirus 4 (FAdV-4) has emerged in China, representing a new challenge for the poultry industry. Although various highly pathogenic FAdV-4 strains have been isolated, the virulence factor and the pathogenesis of novel FAdV-4 are unclear. In our previous studies, we reported that a large genomic deletion (1,966 bp) is not related to increased virulence. Here, two recombinant chimeric viruses, rHN20 strain and rFB2 strain, were generated from a highly pathogenic FAdV-4 strain by replacing the hexon or fiber-2 gene of a nonpathogenic FAdV-4, respectively. Both chimeric strains showed similar titers to the wild-type strain in vitro. Notably, rFB2 and the wild-type strain induced 100% mortality, while no mortality or clinical signs appeared in chickens inoculated with rHN20, indicating that hexon, but not fiber-2, determines the novel FAdV-4 virulence. Furthermore, an R188I mutation in the hexon protein identified residue 188 as the key amino acid for the reduced pathogenicity. The rR188I mutant strain was significantly neutralized by chicken serum in vitro and in vivo, whereas the wild-type strain was able to replicate efficiently. Finally, the immunogenicity of the rescued rR188I was investigated. Nonpathogenic rR188I provided full protection against lethal FAdV-4 challenge. Collectively, these findings provide an in-depth understanding of the molecular basis of novel FAdV-4 pathogenicity and present rR188I as a potential live attenuated vaccine candidate or a novel vaccine vector for HHS vaccines. IMPORTANCE HHS associated with a novel FAdV-4 infection in chickens has caused huge economic losses to the poultry industry in China since 2015. The molecular basis for the increased virulence remains largely unknown. Here, we demonstrate that the hexon gene is vital for FAdV-4 pathogenicity. Furthermore, we show that the amino acid residue at position 188 of the hexon protein is responsible for pathogenicity. Importantly, the rR188I mutant strain was neutralized by chicken serum in vitro and in vivo, whereas the wild-type strain was not. Further, the rR188I mutant strain provided complete protection against FAdV-4 challenge. Our results provide a molecular basis of the increased virulence of novel FAdV-4. We propose that the rR188I mutant is a potential live attenuated vaccine against HHS and a new vaccine vector for HHS-combined vaccines.
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Affiliation(s)
- Yu Zhang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Aijing Liu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yanan Wang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Hongyu Cui
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yulong Gao
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Xiaole Qi
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Changjun Liu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yanping Zhang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Kai Li
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Li Gao
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Qing Pan
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Xiaomei Wang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
- Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China
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45
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Yuan F, Song H, Hou L, Wei L, Zhu S, Quan R, Wang J, Wang D, Jiang H, Liu H, Liu J. Age-dependence of hypervirulent fowl adenovirus type 4 pathogenicity in specific-pathogen-free chickens. Poult Sci 2021; 100:101238. [PMID: 34157559 PMCID: PMC8237352 DOI: 10.1016/j.psj.2021.101238] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/21/2021] [Accepted: 04/24/2021] [Indexed: 11/25/2022] Open
Abstract
Hypervirulent fowl adenovirus serotype 4 (hvFAdV-4) has emerged as a major pathogen of hepatitis-hydropericardium syndrome (HHS) with increased mortality in chickens, resulting in economic losses to the Chinese poultry industry since June 2015. Here, we isolated a hypervirulent FAdV-4 (hvFAdV-4) strain (designated GD616) from 25-day-old meat-type chickens with severe HHS in Guangdong Province China in June 2017. The whole genome of the strain GD616 shares high homology with those in the recently-reported hvFAdV-4 isolates in China, with natural deletions of ORF19 and ORF27. A comparative analysis of Hexon and Fiber-2 proteins revealed that 2 unique amino acid residues at positions 378 and 453 of the Fiber-2 protein might be associated with virulence due to their occurrences in all the hvFAdV-4 isolates only. To systemically evaluate the effect of age on the susceptibility of chickens to hvFAdV-4, we used this hvFAdV-4 strain to intramuscularly inoculate 7- to 180-day-old specific-pathogen-free chickens for the evaluation of pathogenicity. These results showed that the pathogenicity of the hvFAdV-4 strain GD616 to chickens exhibited age-relatedness, with younger than 59-day-old chickens showing 100% morbidity and mortality, while 180-day-old chickens still exhibited a hydropericardium syndrome-like clinicopathology with 60% morbidity and 20% mortality. These findings enrich the current available knowledge regarding the pathogenicity of the hypervirulent FAdV-4 virus in chickens with a wide range of ages, which assists with the selection of suitable-aged chickens for the evaluation of hvFAdV-4 vaccines.
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Affiliation(s)
- Feng Yuan
- School of Biotechnology, Tianjin University of Science and Technology, Tianjin, China; Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Haidian District, Beijing, China
| | - Huiqi Song
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Haidian District, Beijing, China
| | - Lei Hou
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China
| | - Li Wei
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Haidian District, Beijing, China
| | - Shanshan Zhu
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Haidian District, Beijing, China
| | - Rong Quan
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Haidian District, Beijing, China
| | - Jing Wang
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Haidian District, Beijing, China
| | - Dan Wang
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Haidian District, Beijing, China
| | - Haijun Jiang
- Beijing Key Laboratory for Prevention and Control of Infectious Diseases in Livestock and Poultry, Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Haidian District, Beijing, China
| | - Hao Liu
- School of Biotechnology, Tianjin University of Science and Technology, Tianjin, China
| | - Jue Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou, China.
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46
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Hou L, Chen X, Wang J, Li J, Yang H. A tandem mass tag-based quantitative proteomic analysis of fowl adenovirus serotype 4-infected LMH cells. Vet Microbiol 2021; 255:109026. [PMID: 33743407 DOI: 10.1016/j.vetmic.2021.109026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 02/26/2021] [Indexed: 10/22/2022]
Abstract
Fowl adenovirus serotype 4 (FAdV-4) is recognized as an economically important pathogen for the poultry industry worldwide. FAdV-4 infection causes a metabolic disturbance of hepatocytes, leading to hydropericardium-hepatitis syndrome (HHS) in poultry. However, the metabolic response of hepatocytes to FAdV-4 infection remains poorly investigated. Here, a tandem mass tag (TMT)-based approach was first used to quantitatively identify differentially expressed proteins (DEPs) in leghorn male hepatoma (LMH) cells infected with the virulent FAdV-4 strain GY. We identified 666 DEPs associated with many biological processes and pathways, according to Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses. Functional enrichment analysis revealed that three pathways, including metabolism-related signaling pathways, apoptosis, and autophagy responses, were enriched during FAdV-4 infection. Moreover, excessive induction of metabolism-related signaling pathways by FAdV-4 infection might be associated with HHS induced by the virus. Meanwhile, among the proteins in these pathways, RRM2, SAE1, AEN, and RAD50 were verified through western blotting to be markedly altered in FAdV-4-infected LMH cells. Notably, overexpression of SAE1 inhibited the replication of FAdV-4 in vitro, whereas silencing of SAE1 expression promoted the replication of the virus. Collectively, our findings show for the first time that SAE1 is a host cellular protein that plays roles in regulating the life cycle of FAdV-4.
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Affiliation(s)
- Lidan Hou
- Key Laboratory of Animal Epidemiology of Chinese Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, PR China; China Institute of Veterinary Drug Control, Beijing, 100081, PR China
| | - Xiaochun Chen
- China Institute of Veterinary Drug Control, Beijing, 100081, PR China
| | - Jia Wang
- China Institute of Veterinary Drug Control, Beijing, 100081, PR China
| | - Junping Li
- China Institute of Veterinary Drug Control, Beijing, 100081, PR China.
| | - Hanchun Yang
- Key Laboratory of Animal Epidemiology of Chinese Ministry of Agriculture and Rural Affairs, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, PR China.
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47
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Xie Q, Cao S, Zhang W, Wang W, Li L, Kan Q, Fu H, Geng T, Li T, Wan Z, Gao W, Shao H, Qin A, Ye J. A novel fiber-2-edited live attenuated vaccine candidate against the highly pathogenic serotype 4 fowl adenovirus. Vet Res 2021; 52:35. [PMID: 33640033 PMCID: PMC7912893 DOI: 10.1186/s13567-021-00907-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 01/21/2021] [Indexed: 02/06/2023] Open
Abstract
Recently, the outbreaks of hydropericardium-hepatitis syndrome (HHS) caused by the highly pathogenic fowl adenovirus serotype 4 (FAdV-4) have resulted in huge economic losses to the poultry industry globally. Although several inactivated or subunit vaccines have been developed against FAdV-4, live-attenuated vaccines for FAdV-4 are rarely reported. In this study, a recombinant virus FA4-EGFP expressing EGFP-Fiber-2 fusion protein was generated by the CRISPR/Cas9 technique. Although FA4-EGFP shows slightly lower replication ability than the wild type (WT) FAdV-4, FA4-EGFP was significantly attenuated in vivo compared with the WT FAdV-4. Chickens infected with FA4-EGFP did not show any clinical signs, and all survived to 14 day post-infection (dpi), whereas those infected with FAdV-4 showed severe clinical signs with HHS and all died at 4 dpi. Besides, the inoculation of FA4-EGFP in chickens provided efficient protection against lethal challenge with FAdV-4. Compared with an inactivated vaccine, FA4-EGFP induced neutralizing antibodies with higher titers earlier. All these data not only provide a live-attenuated vaccine candidate against the highly pathogenic FAdV-4 but also give a potential insertion site for developing FAdV-4-based vaccine vectors for delivering foreign antigens.
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Affiliation(s)
- 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 Center 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.,Institute of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Shiya Cao
- 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 Center 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.,Institute of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Wei Zhang
- Sinopharm Yangzhou VAC Biological Engineering Co.Ltd, Yangzhou, 225127, 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 Center 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.,Institute of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Luyuan 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 Center 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.,Institute of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Qiuqi Kan
- 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 Center 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.,Institute of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Hui Fu
- 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 Center 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.,Institute of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Tuoyu Geng
- College of Animal Science and Technology, 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 Center 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.,Institute of Agricultural Science and Technology Development, 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 Center 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.,Institute of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 225009, Jiangsu, China
| | - Wei Gao
- 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 Center 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.,Institute of Agricultural Science and Technology Development, 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 Center 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.,Institute of Agricultural Science and Technology Development, 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 Center 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.,Institute of Agricultural Science and Technology Development, 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 Center 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. .,Institute of Agricultural Science and Technology Development, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
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48
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Jia Z, Ma C, Yang X, Pan X, Li G, Ma D. Oral Immunization of Recombinant Lactococcus lactis and Enterococcus faecalis Expressing Dendritic Cell Targeting Peptide and Hexon Protein of Fowl Adenovirus 4 Induces Protective Immunity Against Homologous Infection. Front Vet Sci 2021; 8:632218. [PMID: 33708811 PMCID: PMC7940690 DOI: 10.3389/fvets.2021.632218] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 01/15/2021] [Indexed: 11/15/2022] Open
Abstract
Hepatitis-hydropericardium syndrome (HPS) causes severe economic losses in the global poultry industry. The present study aims to explore oral immunization of recombinant Lactococcus lactis and Enterococcus faecalis expressing Hexon protein of fowl adenovirus 4 (FAdV-4). The bacteria L. lactis NZ9000 and E. faecalis MDXEF-1 were, respectively, modified as host strain to deliver truncated Hexon protein (ΔHexon) or ΔHexon protein fusing with dendritic cell (DC) targeting peptide (DC-ΔHexon) on the surface of bacteria. The expression of target protein in L. lactis NZ9000 and E. faecalis MDXEF-1 were detected by western blot. To evaluate the immune responses and protective efficacies provided by the live recombinant bacteria, chickens were immunized with the constructed ΔHexon-expressing bacteria three times at 2-week intervals, then experimentally challenged with hypervirulent FAdV-4/GX01. The results showed that oral immunizations with the four ΔHexon-expressing bacteria (NZ9000/ΔHexon-CWA, NZ9000/DC-ΔHexon-CWA, MDXEF-1/ΔHexon-CWA, and MDXEF-1/DC-ΔHexon-CWA), especially the two bacteria carrying DC-targeting peptide, stimulated higher levels of ΔHexon-specific sera IgG and secretory IgA (sIgA) in jejunal lavage fluid, higher proliferation of peripheral blood lymphocytes (PBLs) and higher levels of Th1/Th2-type cytokines, along with significantly decreased virus loads in liver and more offered protective efficacies against FAdV infection compared with PBS and empty vector control groups (p < 0.01). For chickens in the group MDXEF-1/DC-ΔHexon-CWA, the levels of aspartate transaminase (AST), alanine transaminase (ALT) and lactate dehydrogenase (LDH) in sera, and the virus loads in livers were significantly decreased vs. the other three ΔHexon-expressing bacteria (p < 0.01). The pathological changes in the hearts, livers, spleens and kidneys of chickens in MDXEF-1/DC-ΔHexon-CWA group were relatively slight compared to infection control group and other three ΔHexon-expressing bacteria groups. The rate of protection in MDXEF-1/DC-ΔHexon-CWA group was 90%. The present work demonstrated that cell surface-displayed target protein and immune enhancers in L. lactis and E. faecalis might be a promising approach to enhance immunity and immune efficacy against pathogen FAdV-4 infection.
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Affiliation(s)
- Zhipeng Jia
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin, China
| | - Chunli Ma
- Food College, Northeast Agricultural University, Harbin, China
| | - Xuelian Yang
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin, China
| | - Xinghui Pan
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin, China
| | - Guangxing Li
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Dexing Ma
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Harbin, China
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49
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Zou X, Rong Y, Guo X, Hou W, Yan B, Hung T, Lu Z. Fiber1, but not fiber2, is the essential fiber gene for fowl adenovirus 4 (FAdV-4). J Gen Virol 2021; 102. [PMID: 33625352 DOI: 10.1099/jgv.0.001559] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Fibre is the viral protein that mediates the attachment and infection of adenovirus to the host cell. Fowl adenovirus 4 (FAdV-4) possesses two different fibre trimers on each penton capsomere, and roles of the separate fibres remain elusive. Here, we attempted to investigate the function of FAdV-4 fibres by using reverse genetics approaches. Adenoviral plasmids carrying fiber1 or fiber2 mutant genes were constructed and used to transfect chicken LMH cells. Fiber1-mutated recombinant virus could not be rescued. Such defective phenotype was complemented when a fiber1-bearing helper plasmid was included for co-transfection. The infection of fiber-intact FAdV-4 (FAdV4-GFP) to LMH cells could be blocked with purified fiber1 knob protein in a dose-dependent manner, while purifed fiber2 knob had no such function. On the contrary, fiber2-mutated FAdV-4, FAdV4XF2-GFP, was successfully rescued. The results of one-step growth curves showed that proliferative capacity of FAdV4XF2-GFP was 10 times lower than that of the control FAdV4-GFP. FAdV4XF2-GFP also caused fewer deaths of infected chicken embryos than FAdV4-GFP did, which resulted from poorer virus replication in vivo. These data illustrated that fiber1 mediated virus adsorption and was essential for FAdV-4, while fiber2 was dispensable although it significantly contributed to the virulence.
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Affiliation(s)
- Xiaohui Zou
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, PR China
| | - Yejing Rong
- Key Laboratory of Diagnosis and Treatment of Digestive System Tumors of Zhejiang Province, Hwa Mei Hospital, University of Chinese Academy of Sciences, Ningbo 315010, PR China.,NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, PR China
| | - Xiaojuan Guo
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, PR China
| | - Wenzhe Hou
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, PR China
| | - Bingyu Yan
- College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.,NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, PR China
| | - Tao Hung
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, PR China
| | - Zhuozhuang Lu
- Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan 430071, PR China.,Chinese Center for Disease Control and Prevention-Wuhan Institute of Virology, Chinese Academy of Sciences Joint Research Center for Emerging Infectious Diseases and Biosafety, Wuhan 430071, PR China.,NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, PR China
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50
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Xie Q, Wang W, Li L, Kan Q, Fu H, Geng T, Li T, Wan Z, Gao W, Shao H, Qin A, Ye J. Domain in Fiber-2 interacted with KPNA3/4 significantly affects the replication and pathogenicity of the highly pathogenic FAdV-4. Virulence 2021; 12:754-765. [PMID: 33616472 PMCID: PMC7901544 DOI: 10.1080/21505594.2021.1888458] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The outbreaks of hepatitis-hydropericardium syndrome (HPS) caused by the highly pathogenic serotype 4 fowl adenovirus (FAdV-4) have caused a huge economic loss to the poultry industry globally since 2013. Although the Fiber-2 has been identified as a key virulent related factor for FAdV-4, little is known about its molecular basis. In this study, we identified the efficient interaction of the Fiber-2 with the karyopherin alpha 3/4 (KPNA3/4) protein via its N-terminus of 1–40aa. The analysis of the overexpression and knockout of KPNA3/4 showed that KPNA3/4 could efficiently assist the replication of FAdV-4. Moreover, a fiber-2-edited virus FAV-4_Del with a deletion of 7–40aa in Fiber-2 was rescued through the CRISPR-Cas9 technique. In comparison with the wild type FAdV-4, FAV-4_Del was highly attenuated in vitro and in vivo. Notably, the inoculation of FAV-4_Del in chickens could provide full protection against the lethal challenge with the wild type FAdV-4. All these findings not only give novel insights into the molecular basis for the pathogenesis of Fiber-2 but also provide efficient targets for developing antiviral strategies and live-attenuated vaccine candidates against the highly pathogenic FAdV-4.
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Affiliation(s)
- 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 Center 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.,Institutes of Agricultural Science and Technology Development, Yangzhou University , Yangzhou, 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, China.,Jiangsu Co-innovation Center 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.,Institutes of Agricultural Science and Technology Development, Yangzhou University , Yangzhou, China
| | - Luyuan 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 Center 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.,Institutes of Agricultural Science and Technology Development, Yangzhou University , Yangzhou, China
| | - Qiuqi Kan
- 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 Center 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.,Institutes of Agricultural Science and Technology Development, Yangzhou University , Yangzhou, China
| | - Hui Fu
- 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 Center 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.,Institutes of Agricultural Science and Technology Development, Yangzhou University , Yangzhou, China
| | - Tuoyu Geng
- College of Animal Science and Technology, 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 Center 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.,Institutes of Agricultural Science and Technology Development, 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 Center 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.,Institutes of Agricultural Science and Technology Development, Yangzhou University , Yangzhou, China
| | - Wei Gao
- 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 Center 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.,Institutes of Agricultural Science and Technology Development, Yangzhou University , Yangzhou, 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, China.,Jiangsu Co-innovation Center 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.,Institutes of Agricultural Science and Technology Development, 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 Center 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.,Institutes of Agricultural Science and Technology Development, Yangzhou University , Yangzhou, 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, China.,Jiangsu Co-innovation Center 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.,Institutes of Agricultural Science and Technology Development, Yangzhou University , Yangzhou, China
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