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Sekine W, Kamiki H, Ishida H, Matsugo H, Ohira K, Li K, Katayama M, Takenaka-Uema A, Murakami S, Horimoto T. Adaptation potential of H3N8 canine influenza virus in human respiratory cells. Sci Rep 2024; 14:18750. [PMID: 39138310 PMCID: PMC11322661 DOI: 10.1038/s41598-024-69509-x] [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: 03/08/2024] [Accepted: 08/06/2024] [Indexed: 08/15/2024] Open
Abstract
In 2004, the equine-origin H3N8 canine influenza virus (CIV) first caused an outbreak with lethal cases in racing greyhounds in Florida, USA, and then spread to domestic dogs nationwide. Although transmission of this canine virus to humans has not been reported, it is important to evaluate its zoonotic potential because of the high contact opportunities between companion dogs and humans. To gain insight into the interspecies transmissibility of H3N8 CIV, we tested its adaptability to human respiratory A549 cells through successive passages. We found that CIV acquired high growth properties in these cells mainly through mutations in surface glycoproteins, such as hemagglutinin (HA) and neuraminidase (NA). Our reverse genetics approach revealed that HA2-K82E, HA2-R163K, and NA-S18L mutations were responsible for the increased growth of CIV in human cells. Molecular analyses revealed that both HA2 mutations altered the optimum pH for HA membrane fusion activity and that the NA mutation changed the HA-NA functional balance. These findings suggest that H3N8 CIV could evolve into a human pathogen with pandemic potential through a small number of mutations, thereby posing a threat to public health in the future.
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Affiliation(s)
- Wataru Sekine
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-Ku, Tokyo, Japan
| | - Haruhiko Kamiki
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-Ku, Tokyo, Japan
| | - Hiroho Ishida
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-Ku, Tokyo, Japan
- Laboratory of Infectious Diseases, School of Veterinary Medicine, Azabu University, Kanagawa, Japan
| | - Hiromichi Matsugo
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-Ku, Tokyo, Japan
- Laboratory of RNA Viruses, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Kosuke Ohira
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-Ku, Tokyo, Japan
| | - Kaixin Li
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-Ku, Tokyo, Japan
| | - Misa Katayama
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-Ku, Tokyo, Japan
| | - Akiko Takenaka-Uema
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-Ku, Tokyo, Japan
| | - Shin Murakami
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-Ku, Tokyo, Japan
| | - Taisuke Horimoto
- Laboratory of Veterinary Microbiology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-Ku, Tokyo, Japan.
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Wen F, Wang C, Guo J, Yu H, Yuan S, Li Y, Li Z, Huang S, Liang Z. Development and application of a triplex real-time PCR assay for the detection of H3, H4, and H5 subtypes of avian influenza virus. Poult Sci 2024; 103:103333. [PMID: 38113705 PMCID: PMC10770746 DOI: 10.1016/j.psj.2023.103333] [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: 09/18/2023] [Revised: 11/24/2023] [Accepted: 11/27/2023] [Indexed: 12/21/2023] Open
Abstract
Avian influenza virus (AIV) poses a significant threat to the poultry industry and public health. Among the diverse AIV subtypes, H3, H4, and H5 are frequently detected in waterfowl and live poultry markets (LPM). The expeditious and precise identification of these subtypes is imperative in impeding the dissemination of the disease. In this study, we have developed a triplex real-time PCR assay endowed with the capacity to simultaneously discriminate AIV subtypes H3, H4, and H5. This method showcases remarkable specificity, selectively amplifying H3, H4, and H5 AIV subtypes sans any cross-reactivity with other subtypes or common avian pathogens. Furthermore, this method exhibits high sensitivity, with a detection threshold of 2.1 × 102 copies/μL for H3, H4, and H5 AIV subtypes. Additionally, the assay demonstrates reproducibility, as evidenced by intra- and interassay variability, with a coefficient of variation below 1.5%. A total of 338 cloacal swabs were collected from LPM to evaluate the performance of our assay. The obtained results evinced a high level of concordance with the sequencing data. In summary, our study has developed a triplex real-time PCR method that can be employed in laboratory-based testing and surveillance of AIV. This assay holds promise in augmenting our ability to detect and monitor AIV subtypes, thereby facilitating timely interventions and safeguarding both the poultry industry and public health.
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Affiliation(s)
- Feng Wen
- College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong, China
| | - Congying Wang
- College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong, China
| | - Jinyue Guo
- College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong, China
| | - Hai Yu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Sheng Yuan
- College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong, China
| | - Yong Li
- College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, Jiangxi, China
| | - Zhili Li
- College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong, China
| | - Shujian Huang
- College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong, China
| | - Zhaoping Liang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong, China.
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Yan S, Yang F, Yao H, Dong D, Wu D, Wu N, Ye C, Wu H. A multiplex real-time RT-PCR assay for the detection of H1, H2 and H3 subtype avian influenza viruses. Virus Genes 2023; 59:333-337. [PMID: 36515804 DOI: 10.1007/s11262-022-01963-z] [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: 08/17/2022] [Accepted: 12/07/2022] [Indexed: 12/15/2022]
Abstract
Avian influenza viruses (AIVs) are influenza A viruses, of which subtypes H1, H2 and H3 are highly transmissible in poultry and have the risk of transmission to human as well. It is important to establish an accurate, sensitive and convenient means of virus detection. In this study, we developed a multiplex real-time RT-PCR assay based on conserved sequences of the virus hemagglutinin and matrix, and designed primers and probes for the simultaneous and rapid detection of AIV subtypes H1, H2 and H3. We used different subtypes of AIVs and other avian respiratory viruses for evaluation of the specificity of this method. The results showed good sensitivity, specificity and reproducibility. The detection limit was 10-100 copies per reaction. The method also achieved good concordance with the virus isolation method when compared to 81 poultry samples evaluated. It provides a new method for detecting mixed infections of AIVs.
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Affiliation(s)
- Sijing Yan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, School of Medicine, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Fan Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, School of Medicine, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Hangping Yao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, School of Medicine, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, 250117, China
| | - Dalu Dong
- Hangzhou Biotest Biotech Co.,Ltd, 27 Tuyi Road, Cangqian Street, Yuhang District, Hangzhou, 311121, Zhejiang, China
| | - Danna Wu
- Hangzhou Biotest Biotech Co.,Ltd, 27 Tuyi Road, Cangqian Street, Yuhang District, Hangzhou, 311121, Zhejiang, China
| | - Nanping Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, School of Medicine, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, 250117, China
| | - Chunsheng Ye
- Hangzhou Biotest Biotech Co.,Ltd, 27 Tuyi Road, Cangqian Street, Yuhang District, Hangzhou, 311121, Zhejiang, China.
| | - Haibo Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, School of Medicine, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University, 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China.
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan, 250117, China.
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Tian J, Li M, Li Y, Bai X, Song X, Zhao Z, Ge S, Li Y, Liu J, Shi J, Wang X, Li Z, Zhou H, Ma L, Zeng X, Tian G, Guan Y, Li Y, Chen H. H3N8 subtype avian influenza virus originated from wild birds exhibited dual receptor-binding profiles. J Infect 2023; 86:e36-e39. [PMID: 36273641 DOI: 10.1016/j.jinf.2022.10.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 10/02/2022] [Accepted: 10/16/2022] [Indexed: 01/30/2023]
Abstract
We present the phylogeny, receptor binding property, growth in mammal cells and pathogenicity in mammal model of H3N8 viruses, which were isolated from wild birds in China. The human receptor preference and efficient replication in mice without prior adaption highlight that the H3N8 virus possesses the public threat potential.
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Affiliation(s)
- Jingman Tian
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang province, China
| | - Minghui Li
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang province, China
| | - Yulei Li
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang province, China
| | - Xiaoli Bai
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang province, China
| | - Xingdong Song
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang province, China
| | - Zhiguo Zhao
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang province, China
| | - Shenfeng Ge
- Preventive and Control Center for Animal Disease of Tianjin, China
| | - Yuehui Li
- Preventive and Control Center for Animal Disease of Tianjin, China
| | - Jianwen Liu
- Preventive and Control Center for Animal Disease of Tianjin, China
| | - Jianzhong Shi
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang province, China
| | - Xiaoliang Wang
- Preventive and Control Center for Animal Disease of Ningxia province, China
| | - Zhixin Li
- Preventive and Control Center for Animal Disease of Ningxia province, China
| | - Haining Zhou
- Preventive and Control Center for Animal Disease of Ningxia province, China
| | - Long Ma
- Preventive and Control Center for Animal Disease of Ningxia province, China
| | - Xianying Zeng
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang province, China
| | - Guobin Tian
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang province, China
| | - Yuntao Guan
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang province, China
| | - Yanbing Li
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang province, China.
| | - Hualan Chen
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang province, China.
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Zhou P, Chen B, Hu X, Xiao X, Liu R, Li S. Domestic poultry are not susceptible to avian-origin H3N2 subtype canine influenza A virus. Vet Microbiol 2022; 272:109501. [PMID: 35853408 DOI: 10.1016/j.vetmic.2022.109501] [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: 01/23/2022] [Revised: 06/28/2022] [Accepted: 06/29/2022] [Indexed: 11/17/2022]
Abstract
At present, avian-origin H3N2 subtype canine influenza virus (H3N2 CIV) is prevalent in East Asian and North American countries. The host tropism of H3N2 CIV to mammals, including mice, guinea pigs, ferrets, and pigs, has been evaluated. However, it has not previously been determined whether avian-origin H3N2 CIV can be transmitted back to birds. In China, ducks, chickens, geese, pigeons, and quails are economically important domestic poultry that are susceptible to numerous subtypes of influenza A virus. These poultry occasionally or frequently come into contact with dogs. In this study, the infectivity of the first- and last-isolated Chinese H3N2 CIV strains in these poultry species was evaluated, and oropharyngeal and cloacal swabs of these animals were negative for virus, as determined by specific pathogen-free (SPF) chicken egg inoculation and real-time RT-qPCR assays. Clinical signs and gross lesions were not observed in any of these species, and seroconversion also did not occur. The results showed that all these avian species were unsusceptible to the first- and last-isolated H3N2 CIVs, indicating unidirectional evolution of the mammalian host tropism of H3N2 CIV.
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Affiliation(s)
- Pei Zhou
- Guangdong Provincial Key Laboratory of Comprehensive Prevention and Control for Severe Clinical Animal Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China; Guangdong Technological Engineering Research Center for Pets, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Bo Chen
- Guangdong Provincial Key Laboratory of Comprehensive Prevention and Control for Severe Clinical Animal Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China; Guangdong Technological Engineering Research Center for Pets, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Xinkai Hu
- Guangdong Provincial Key Laboratory of Comprehensive Prevention and Control for Severe Clinical Animal Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China; Guangdong Technological Engineering Research Center for Pets, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Xiangyu Xiao
- Guangdong Provincial Key Laboratory of Comprehensive Prevention and Control for Severe Clinical Animal Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China; Guangdong Technological Engineering Research Center for Pets, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Ruohan Liu
- Guangdong Provincial Key Laboratory of Comprehensive Prevention and Control for Severe Clinical Animal Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China; Guangdong Technological Engineering Research Center for Pets, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Shoujun Li
- Guangdong Provincial Key Laboratory of Comprehensive Prevention and Control for Severe Clinical Animal Diseases, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China; Guangdong Technological Engineering Research Center for Pets, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.
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Adaptation of Two Wild Bird-Origin H3N8 Avian Influenza Viruses to Mammalian Hosts. Viruses 2022; 14:v14051097. [PMID: 35632838 PMCID: PMC9147613 DOI: 10.3390/v14051097] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 02/04/2023] Open
Abstract
Wild birds play an important role in the emergence, evolution, and spread of zoonotic avian influenza viruses (AIVs). However, there are few studies on the cross-species transmission of the H3N8 AIV originating from wild birds. In this study, we investigated the transmissibility and pathogenicity of two H3N8 low pathogenic avian influenza viruses (LPAIVs) isolated from wild birds, GZA1 and XJ47, to mammals. The HA genes of both strains belonged to Eurasian isolates, while the other genes were derived from a variety of other subtypes of AIVs. Both strains can infect specific-pathogen-free (SPF) chickens, BALB/c mice, and guinea pigs. The XJ47 strain spread horizontally in SPF chickens and guinea pigs. The GZA1 strain did not spread horizontally but caused higher weight loss and mild lung inflammation in mice. P12-GZA1- and P12-XJ47-adapted strains obtained after 12 passages in the lung of mice showed enhanced pathogenicity in mice, which led to obvious clinical symptoms, lung inflammation, and 100% death. Both adapted strains have the reported mutation T97I in the PA, and the reported mutation D701N in PB2 has been found in the P12-GZA1-adapted strain. This study provides an important scientific basis for the continuous monitoring of wild AIVs and the mechanism underlying AIV cross-species transmission.
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Cheng D, Dong Y, Wen S, Shi C. A child with acute respiratory distress syndrome caused by avian influenza H3N8 virus. J Infect 2022; 85:174-211. [DOI: 10.1016/j.jinf.2022.05.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/08/2022] [Accepted: 05/09/2022] [Indexed: 10/18/2022]
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