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Wang S, Zhang H, Liu R, Han P, Yang Q, Cheng C, Chen Y, Rong Z, Su C, Li F, Wei G, Zhao M, Yang L. Influenza A Virus PB1-F2 Induces Affective Disorder by Interfering Synaptic Plasticity in Hippocampal Dentate Gyrus. Mol Neurobiol 2024:10.1007/s12035-024-04107-6. [PMID: 38488981 DOI: 10.1007/s12035-024-04107-6] [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: 11/20/2023] [Accepted: 03/07/2024] [Indexed: 03/17/2024]
Abstract
Influenza A virus (IAV) infection, which leads to millions of new cases annually, affects many tissues and organs of the human body, including the central nervous system (CNS). The incidence of affective disorders has increased after the flu pandemic; however, the potential mechanism has not been elucidated. PB1-F2, a key virulence molecule of various influenza virus strains, has been shown to inhibit cell proliferation and induce host inflammation; however, its role in the CNS has not been studied. In this study, we constructed and injected PB1-F2 into the hippocampal dentate gyrus (DG), a region closely associated with newborn neurons and neural development, to evaluate its influence on negative affective behaviors and learning performance in mice. We observed anxiety- and depression-like behaviors, but not learning impairment, in mice injected with PB1-F2. Furthermore, pull-down and mass spectrometry analyses identified several potential PB1-F2 binding proteins, and enrichment analysis suggested that the most affected function was neural development. Morphological and western blot studies revealed that PB1-F2 inhibited cell proliferation and oligodendrocyte development, impaired myelin formation, and interfered with synaptic plasticity in DG. Taken together, our results demonstrated that PB1-F2 induces affective disorders by inhibiting oligodendrocyte development and regulating synaptic plasticity in the DG after IAV infection, which lays the foundation for developing future cures of affective disorders after IAV infection.
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Affiliation(s)
- Saiying Wang
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Haijun Zhang
- Center of Clinical Aerospace Medicine, School of Aerospace Medicine, Key Laboratory of Aerospace Medicine of Ministry of Education, Air Force Medical University, Xi'an, 710032, China
| | - Rui Liu
- Department of Rehabilitation, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Peijun Han
- Department of Aerospace Hygiene, School of Aerospace Medicine, Air Force Medical University, Xi'an, China
| | - Qi Yang
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Caiyan Cheng
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Yue Chen
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Zheng Rong
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Chang Su
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Fei Li
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Gaofei Wei
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
| | - Minggao Zhao
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Le Yang
- Precision Pharmacy & Drug Development Center, Department of Pharmacy, Tangdu Hospital, Air Force Medical University, Xi'an, China.
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Jiang H, Zhang Z. Immune response in influenza virus infection and modulation of immune injury by viral neuraminidase. Virol J 2023; 20:193. [PMID: 37641134 PMCID: PMC10463456 DOI: 10.1186/s12985-023-02164-2] [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: 02/10/2023] [Accepted: 08/16/2023] [Indexed: 08/31/2023] Open
Abstract
Influenza A viruses cause severe respiratory illnesses in humans and animals. Overreaction of the innate immune response to influenza virus infection results in hypercytokinemia, which is responsible for mortality and morbidity. The influenza A virus surface glycoprotein neuraminidase (NA) plays a vital role in viral attachment, entry, and virion release from infected cells. NA acts as a sialidase, which cleaves sialic acids from cell surface proteins and carbohydrate side chains on nascent virions. Here, we review progress in understanding the role of NA in modulating host immune response to influenza virus infection. We also discuss recent exciting findings targeting NA protein to interrupt influenza-induced immune injury.
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Affiliation(s)
- Hongyu Jiang
- The People's Hospital of Dayi Country, Chengdu, Sichuan, China
- Inflammation and Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
- School of Basic Medical Sciences, Southwest Medical University, Luzhou, Sichuan, China
| | - Zongde Zhang
- The People's Hospital of Dayi Country, Chengdu, Sichuan, China.
- Inflammation and Allergic Diseases Research Unit, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.
- School of Basic Medical Sciences, Southwest Medical University, Luzhou, Sichuan, China.
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3
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Key amino acid position 272 in neuraminidase determines the replication and virulence of H5N6 avian influenza virus in mammals. iScience 2022; 25:105693. [PMID: 36567717 PMCID: PMC9772848 DOI: 10.1016/j.isci.2022.105693] [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: 07/29/2022] [Revised: 10/14/2022] [Accepted: 11/24/2022] [Indexed: 12/03/2022] Open
Abstract
Avian influenza H5N6 virus not only wreaks economic havoc in the poultry industry but also threatens human health. Strikingly, as of August 2022, 78 human beings were infected with H5N6, and the spike in the number of human infections with H5N6 occurred during 2021. In the life cycle of influenza virus, neuraminidase (NA) has numerous functions, especially viral budding and replication. Here, we found that NA-D272N mutation became predominant in H5N6 viruses since 2015 and significantly increased the viral replication and virulence in mice. D272N mutation in NA protein increased viral release from erythrocytes, thermostability, early transcription, and accumulation of NA protein. Particularly, the dominant 272 residue switch from N to S has occurred in wild bird-origin H5N6 viruses since late 2016 and N272S mutation induced significantly higher levels of inflammatory cytokines in infected human cells. Therefore, comprehensive surveillance of bird populations needs to be enhanced to monitor mammalian adaptive mutations of H5N6 viruses.
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He J, Huang H, Li B, Li H, Zhao Y, Li Y, Ye W, Qi W, Tang W, Wang L. Identification of cytochrome c oxidase subunit 4 isoform 1 as a positive regulator of influenza virus replication. Front Microbiol 2022; 13:862205. [PMID: 35928150 PMCID: PMC9343726 DOI: 10.3389/fmicb.2022.862205] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 06/28/2022] [Indexed: 11/14/2022] Open
Abstract
Human infection with highly pathogenic H5N1 influenza virus causes severe respiratory diseases. Currently, the drugs against H5N1 are limited to virus-targeted inhibitors. However, drug resistance caused by these inhibitors is becoming a serious threat to global public health. An alternative strategy to reduce the resistance risk is to develop antiviral drugs targeting host cell proteins. In this study, we demonstrated that cytochrome c oxidase subunit 4 isoform 1 (COX41) of host cell plays an important role in H5N1 infection. Overexpression of COX41 promoted viral replication, which was inhibited by silencing or knockout the expression of COX41 in the host cell. The ribonucleoproteins (RNPs) of H5N1 were retained in the cell nucleus after knockout cellular COX41. Strikingly, inhibition of cellular COX41 by lycorine, a small-molecule compound isolated from Amaryllidaceae plants, reduced the levels of COX41-induced ROS and phosphorylation of extracellular signal-regulated kinase (ERK) in cells, thus resulting in the blockage of nuclear export of vRNP and inhibition of viral replication. In H5N1-infected mice that were treated with lycorine, we observed a reduction of viral titers and inhibition of pathological changes in the lung and trachea tissues. Importantly, no resistant virus was generated after culturing the virus with the continuous treatment of lycorine. Collectively, these findings suggest that COX41 is a positive regulator of H5N1 replication and might serve as an alternative target for anti-influenza drug development.
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Affiliation(s)
- Jun He
- Center for Bioactive Natural Molecules and Innovative Drugs Research, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, China
- Institute of Laboratory Animal Science, Jinan University, Guangzhou, China
| | - Huibin Huang
- Center for Bioactive Natural Molecules and Innovative Drugs Research, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, China
- Pharmacy Department, Wenzhou People’s Hospital, Wenzhou, China
| | - Bo Li
- National Avian Influenza Professional Laboratory, Key Laboratory of Zoonoses, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
- Chongqing Academy of Animal Sciences, Chongqing, China
| | - Huanan Li
- National Avian Influenza Professional Laboratory, Key Laboratory of Zoonoses, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
| | - Yue Zhao
- Institute of Laboratory Animal Science, Jinan University, Guangzhou, China
| | - Yaolan Li
- Center for Bioactive Natural Molecules and Innovative Drugs Research, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, China
| | - Wencai Ye
- Center for Bioactive Natural Molecules and Innovative Drugs Research, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, China
| | - Wenbao Qi
- National Avian Influenza Professional Laboratory, Key Laboratory of Zoonoses, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
| | - Wei Tang
- Center for Bioactive Natural Molecules and Innovative Drugs Research, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, China
- *Correspondence: Lei Wang, Wei Tang,
| | - Lei Wang
- Center for Bioactive Natural Molecules and Innovative Drugs Research, Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou, China
- *Correspondence: Lei Wang, Wei Tang,
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Yang F, Xiao Y, Liu F, Yao H, Wu N, Wu H. Molecular characterization and antigenic analysis of reassortant H9N2 subtype avian influenza viruses in Eastern China in 2016. Virus Res 2021; 306:198577. [PMID: 34560182 DOI: 10.1016/j.virusres.2021.198577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 08/31/2021] [Accepted: 09/13/2021] [Indexed: 11/19/2022]
Abstract
H9N2 avian influenza viruses (AIVs) can cause respiratory symptoms and decrease the egg production. Additionally, H9N2 AIVs can provide internal genes for reassortment with other subtypes. During the monitoring of live poultry markets in 2016, a total of 32 (32/179, 17.88%) H9N2 AIVs were isolated from poultry in Eastern China, and seven representative strains were selected based on the isolation time, isolation location and sequence homology for further characterization. Phylogenetic analysis of hemagglutinin and neuraminidase showed that these H9N2 AIVs clustered into the Y280 sublineage. And the phylogenetic trees of six internal genes showed that the source of these gene fragments was more abundant, suggesting that extensive reassortment has occurred in these H9N2 viruses. Molecular analysis showed that multiple specific amino acid mutations occurred that increased H9N2 AIVs' infectivity, transmissibility, and affinity to mammals, including Q226L and Q227M in hemagglutinin, E627K in polymerase basic protein 2 (PB2), L13P in polymerase basic protein 1 (PB1), and A70V and S409N in polymerase acidic protein (PA). Pathogenicity tests in mice showed these H9N2 AIVs could replicate in lungs and exhibited slight to moderate virulence. The continuous circulation of these H9N2 viruses suggests the necessity for persistent surveillance of the H9N2 AIVs in poultry.
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Affiliation(s)
- Fan Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, and National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, Zhejiang, China
| | - Yixin Xiao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, and National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, Zhejiang, China
| | - Fumin Liu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, and National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, Zhejiang, China
| | - Hangping Yao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, and National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, Zhejiang, China
| | - Nanping Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, and National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, Zhejiang, China
| | - Haibo Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, and National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, Hangzhou 310003, Zhejiang, China.
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6
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Song W, Huang X, Guan W, Chen P, Wang P, Zheng M, Li Z, Wang Y, Yang Z, Chen H, Wang X. Multiple basic amino acids in the cleavage site of H7N9 hemagglutinin contribute to high virulence in mice. J Thorac Dis 2021; 13:4650-4660. [PMID: 34527306 PMCID: PMC8411188 DOI: 10.21037/jtd-21-226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 06/18/2021] [Indexed: 11/25/2022]
Abstract
Background Avian influenza A (H7N9) virus has caused more than 1,500 cases of human infection since its emergence in early 2013. Displaying little or no pathogenicity in poultry, but a 40% case-fatality rate in humans, five waves of H7N9 human infections occurred in China during 2013–2017, caused solely by a low pathogenicity strain. However, avian isolates possessing a polybasic connecting peptide in the hemagglutinin (HA) protein were detected in mid-2016, indicating that a highly pathogenic virus had emerged and was co-circulating with the low pathogenicity strains. Methods Here we characterize the pathogenicity of a newly emerged human H7N9 variant with a PEVPKRKRTAR/GLF insertion motif at the cleavage site of the HA protein in vitro and in vivo. Results This variant replicates in MDCK cells independently of TPCK-trypsin, which is indicative of high pathogenicity in chickens. The 50% mouse lethal dose (MLD50) of this novel isolate was less than 10 plaque forming units (PFU), compared with 3.16×104 for an identical virus lacking the polybasic insertion, indicating a high virulence phenotype. Conclusions Our results demonstrate that the multiple basic amino acid insertion in the HA protein of the H7N9 variant confers high virulence in mammals, highlighting a potential risk to humans. Continuous viral surveillance is therefore necessary in the China region to improve pandemic preparedness.
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Affiliation(s)
- Wenjun Song
- State Key Laboratory of Respiratory Disease, Institute of Integration of Traditional and Western Medicine, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,State Key Laboratory for Emerging Infectious Diseases, Department of Microbiology, and the Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong SAR, China
| | - Xiaofeng Huang
- State Key Laboratory for Emerging Infectious Diseases, Department of Microbiology, and the Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong SAR, China
| | - Wenda Guan
- State Key Laboratory of Respiratory Disease, Institute of Integration of Traditional and Western Medicine, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Pin Chen
- State Key Laboratory for Emerging Infectious Diseases, Department of Microbiology, and the Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong SAR, China
| | - Pui Wang
- State Key Laboratory for Emerging Infectious Diseases, Department of Microbiology, and the Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong SAR, China
| | - Min Zheng
- State Key Laboratory for Emerging Infectious Diseases, Department of Microbiology, and the Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong SAR, China
| | - Zhengtu Li
- State Key Laboratory of Respiratory Disease, Institute of Integration of Traditional and Western Medicine, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yutao Wang
- State Key Laboratory of Respiratory Disease, Institute of Integration of Traditional and Western Medicine, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zifeng Yang
- State Key Laboratory of Respiratory Disease, Institute of Integration of Traditional and Western Medicine, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Honglin Chen
- State Key Laboratory for Emerging Infectious Diseases, Department of Microbiology, and the Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong SAR, China
| | - Xinhua Wang
- State Key Laboratory of Respiratory Disease, Institute of Integration of Traditional and Western Medicine, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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7
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Li H, Li Q, Li B, Guo Y, Xing J, Xu Q, Liu L, Zhang J, Qi W, Jia W, Liao M. Continuous Reassortment of Clade 2.3.4.4 H5N6 Highly Pathogenetic Avian Influenza Viruses Demonstrating High Risk to Public Health. Pathogens 2020; 9:pathogens9080670. [PMID: 32824873 PMCID: PMC7460007 DOI: 10.3390/pathogens9080670] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/13/2020] [Accepted: 08/16/2020] [Indexed: 01/08/2023] Open
Abstract
Since it firstly emerged in China in 2013, clade 2.3.4.4 H5N6 highly pathogenic avian influenza viruses (HPAIVs) has rapidly replaced predominant H5N1 to become the dominant H5 subtype in China, especially in ducks. Not only endemic in China, it also crossed the geographical barrier and emerged in South Korea, Japan, and Europe. Here, we analyzed the genetic properties of the clade 2.3.4.4 H5N6 HPAIVs with full genome sequences available online together with our own isolates. Phylogenetic analysis showed that clade 2.3.4.4 H5N6 HPAIVs continuously reassorted with local H5, H6, and H7N9/H9N2. Species analysis reveals that aquatic poultry and migratory birds became the dominant hosts of H5N6. Adaption to aquatic poultry might help clade 2.3.4.4 H5N6 better adapt to migratory birds, thus enabling it to become endemic in China. Besides, migratory birds might help clade 2.3.4.4 H5N6 transmit all over the world. Clade 2.3.4.4 H5N6 HPAIVs also showed a preference for α2,6-SA receptors when compared to other avian origin influenza viruses. Experiments in vitro and in vivo revealed that clade 2.3.4.4 H5N6 HPAIVs exhibited high replication efficiency in both avian and mammal cells, and it also showed high pathogenicity in both mice and chickens, demonstrating high risk to public health. Considering all the factors together, adaption to aquatic poultry and migratory birds helps clade 2.3.4.4 H5N6 overcome the geographical isolation, and it has potential to be the next influenza pandemic in the world, making it worthy of our attention.
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Affiliation(s)
- Huanan Li
- National Avian Influenza Para-Reference Laboratory (Guangzhou), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Q.L.); (B.L.); (Y.G.); (J.X.); (Q.X.); (L.L.); (J.Z.); (W.Q.)
- Key Laboratory of Zoonosis, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China
| | - Qian Li
- National Avian Influenza Para-Reference Laboratory (Guangzhou), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Q.L.); (B.L.); (Y.G.); (J.X.); (Q.X.); (L.L.); (J.Z.); (W.Q.)
- Xiaqiu Animal Husbandry & Veterinary Station, Yantai 261400, China
| | - Bo Li
- National Avian Influenza Para-Reference Laboratory (Guangzhou), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Q.L.); (B.L.); (Y.G.); (J.X.); (Q.X.); (L.L.); (J.Z.); (W.Q.)
- Key Laboratory of Zoonosis, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China
| | - Yang Guo
- National Avian Influenza Para-Reference Laboratory (Guangzhou), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Q.L.); (B.L.); (Y.G.); (J.X.); (Q.X.); (L.L.); (J.Z.); (W.Q.)
- Key Laboratory of Zoonosis, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China
| | - Jinchao Xing
- National Avian Influenza Para-Reference Laboratory (Guangzhou), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Q.L.); (B.L.); (Y.G.); (J.X.); (Q.X.); (L.L.); (J.Z.); (W.Q.)
- Key Laboratory of Zoonosis, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China
| | - Qiang Xu
- National Avian Influenza Para-Reference Laboratory (Guangzhou), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Q.L.); (B.L.); (Y.G.); (J.X.); (Q.X.); (L.L.); (J.Z.); (W.Q.)
- Key Laboratory of Zoonosis, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China
| | - Lele Liu
- National Avian Influenza Para-Reference Laboratory (Guangzhou), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Q.L.); (B.L.); (Y.G.); (J.X.); (Q.X.); (L.L.); (J.Z.); (W.Q.)
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou 510642, China
| | - Jiahao Zhang
- National Avian Influenza Para-Reference Laboratory (Guangzhou), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Q.L.); (B.L.); (Y.G.); (J.X.); (Q.X.); (L.L.); (J.Z.); (W.Q.)
- Key Laboratory of Zoonosis, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China
| | - Wenbao Qi
- National Avian Influenza Para-Reference Laboratory (Guangzhou), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Q.L.); (B.L.); (Y.G.); (J.X.); (Q.X.); (L.L.); (J.Z.); (W.Q.)
- Key Laboratory of Zoonosis, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China
| | - Weixin Jia
- National Avian Influenza Para-Reference Laboratory (Guangzhou), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Q.L.); (B.L.); (Y.G.); (J.X.); (Q.X.); (L.L.); (J.Z.); (W.Q.)
- Key Laboratory of Zoonosis, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China
- Correspondence: (W.J.); (M.L.); Tel.: +86-020-8528-3309 (W.J.); +86-020-8528-0240 (M.L.)
| | - Ming Liao
- National Avian Influenza Para-Reference Laboratory (Guangzhou), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (H.L.); (Q.L.); (B.L.); (Y.G.); (J.X.); (Q.X.); (L.L.); (J.Z.); (W.Q.)
- Key Laboratory of Zoonosis, Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
- National and Regional Joint Engineering Laboratory for Medicament of Zoonosis Prevention and Control, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China
- Correspondence: (W.J.); (M.L.); Tel.: +86-020-8528-3309 (W.J.); +86-020-8528-0240 (M.L.)
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8
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Ge Z, Gu M, Cai T, Liu K, Gao R, Liu D, Sun W, Li X, Shi L, Liu J, Wang X, Hu J, Liu X, Hu S, Chen S, Peng D, Jiao X, Liu X. Phylogenetic tracing and biological characterization of a novel clade 2.3.2.1 reassortant of H5N6 subtype avian influenza virus in China. Transbound Emerg Dis 2020; 68:730-741. [PMID: 32677729 DOI: 10.1111/tbed.13736] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 05/15/2020] [Accepted: 07/12/2020] [Indexed: 12/29/2022]
Abstract
In recent years in China, clade 2.3.4.4 H5N6 plus clade 2.3.2.1 H5N1 subtype highly pathogenic avian influenza (HPAI) viruses have gradually become endemic in poultry, and their co-circulation could inevitably facilitate the gene reassortment between each other. During our routine surveillance in live poultry markets (LPMs) in eastern China in 2017-2018, a novel reassortant H5N6 strain with the HA gene derived from clade 2.3.2.1 was isolated from the cloacal swabs of apparently healthy ducks. Phylogenetic tracing analysis indicated that another two clade 2.3.2.1 H5N1 strains with divergent lineages of PB1 gene and one clade 2.3.4.4 H5N6 isolate of the dominant genotype sharing spatio-temporal proximity were intimately involved in the generation of this rarely reported clade 2.3.2.1 H5N6 reassortant. Distinct with the other three HPAI H5 viruses showing moderate virulence in mice, the H5N1 strain of the homologous internal gene constellation against the clade 2.3.2.1 H5N6 reassortant was highly pathogenic, which might probably attribute to the H3 subtype-derived PB1 gene. However, as compared to the clade 2.3.4.4 H5N6 ancestor, the clade 2.3.2.1 H5N6 reassortant displayed a broader tissue distribution and higher viral titres in mice, which could likely facilitate the viral maintenance and spread in nature. Therefore, our results highlight that continuous epidemiological survey of H5 subtype HPAI viruses in LPMs needs to be strengthened to prevent the potential poultry or even public health threat of the novel reassortants from endemic viruses.
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Affiliation(s)
- Zhichuang Ge
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Min Gu
- Animal Infectious Disease Laboratory, 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.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Tianyu Cai
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Kaituo Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Ruyi Gao
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Dong Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Wenqiang Sun
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiuli Li
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Lei Shi
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Jiao Liu
- Animal Infectious Disease Laboratory, College of Veterinary Medicine, Yangzhou University, Yangzhou, China
| | - Xiaoquan Wang
- Animal Infectious Disease Laboratory, 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.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Jiao Hu
- Animal Infectious Disease Laboratory, 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.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Xiaowen Liu
- Animal Infectious Disease Laboratory, 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.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Shunlin Hu
- Animal Infectious Disease Laboratory, 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.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Sujuan Chen
- Animal Infectious Disease Laboratory, 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.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Daxin Peng
- Animal Infectious Disease Laboratory, 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.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Xinan Jiao
- Animal Infectious Disease Laboratory, 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.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
| | - Xiufan Liu
- Animal Infectious Disease Laboratory, 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.,Jiangsu Key Laboratory of Zoonoses, Yangzhou University, Yangzhou, China
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