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Tang J, Zou SM, Zhou JF, Gao RB, Xin L, Zeng XX, Huang WJ, Li XY, Cheng YH, Liu LQ, Xiao N, Wang DY. R229I substitution from oseltamivir induction in HA1 region significantly increased the fitness of a H7N9 virus bearing NA 292K. Emerg Microbes Infect 2024; 13:2373314. [PMID: 38922326 PMCID: PMC467099 DOI: 10.1080/22221751.2024.2373314] [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: 03/13/2024] [Accepted: 06/22/2024] [Indexed: 06/27/2024]
Abstract
The proportion of human isolates with reduced neuraminidase inhibitors (NAIs) susceptibility in highly pathogenic avian influenza (HPAI) H7N9 virus was high. These drug-resistant strains showed good replication capacity without serious loss of fitness. In the presence of oseltamivir, R229I substitution were found in HA1 region of the HPAI H7N9 virus before NA R292K appeared. HPAI H7N9 or H7N9/PR8 recombinant viruses were developed to study whether HA R229I could increase the fitness of the H7N9 virus bearing NA 292K. Replication efficiency was assessed in MDCK or A549 cells. Neuraminidase enzyme activity and receptor-binding ability were analyzed. Pathogenicity in C57 mice was evaluated. Antigenicity analysis was conducted through a two-way HI test, in which the antiserum was obtained from immunized ferrets. Transcriptomic analysis of MDCK infected with HPAI H7N9 24hpi was done. It turned out that HA R229I substitution from oseltamivir induction in HA1 region increased (1) replication ability in MDCK(P < 0.05) and A549(P < 0.05), (2) neuraminidase enzyme activity, (3) binding ability to both α2,3 and α2,6 receptor, (4) pathogenicity to mice(more weight loss; shorter mean survival day; viral titer in respiratory tract, P < 0.05; Pathological changes in pneumonia), (5) transcriptome response of MDCK, of the H7N9 virus bearing NA 292K. Besides, HA R229I substitution changed the antigenicity of H7N9/PR8 virus (>4-fold difference of HI titre). It indicated that through the fine-tuning of HA-NA balance, R229I increased the fitness and changed the antigenicity of H7N9 virus bearing NA 292K. Public health attention to this mechanism needs to be drawn.
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MESH Headings
- Animals
- Oseltamivir/pharmacology
- Influenza A Virus, H7N9 Subtype/genetics
- Influenza A Virus, H7N9 Subtype/drug effects
- Influenza A Virus, H7N9 Subtype/pathogenicity
- Influenza A Virus, H7N9 Subtype/immunology
- Influenza A Virus, H7N9 Subtype/physiology
- Neuraminidase/genetics
- Neuraminidase/metabolism
- Dogs
- Virus Replication/drug effects
- Antiviral Agents/pharmacology
- Humans
- Mice
- Orthomyxoviridae Infections/virology
- Madin Darby Canine Kidney Cells
- A549 Cells
- Mice, Inbred C57BL
- Drug Resistance, Viral/genetics
- Amino Acid Substitution
- Influenza, Human/virology
- Ferrets
- Hemagglutinin Glycoproteins, Influenza Virus/genetics
- Hemagglutinin Glycoproteins, Influenza Virus/immunology
- Hemagglutinin Glycoproteins, Influenza Virus/metabolism
- Female
- Viral Proteins/genetics
- Viral Proteins/metabolism
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Affiliation(s)
- Jing Tang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Reference and Research on Influenza; Key Laboratory for Medical Virology and Viral Diseases, National Health Commission; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing, People’s Republic of China
| | - Shu-Mei Zou
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Reference and Research on Influenza; Key Laboratory for Medical Virology and Viral Diseases, National Health Commission; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing, People’s Republic of China
| | - Jian-Fang Zhou
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Reference and Research on Influenza; Key Laboratory for Medical Virology and Viral Diseases, National Health Commission; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing, People’s Republic of China
| | - Rong-Bao Gao
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Reference and Research on Influenza; Key Laboratory for Medical Virology and Viral Diseases, National Health Commission; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing, People’s Republic of China
| | - Li Xin
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Reference and Research on Influenza; Key Laboratory for Medical Virology and Viral Diseases, National Health Commission; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing, People’s Republic of China
| | - Xiao-Xu Zeng
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Reference and Research on Influenza; Key Laboratory for Medical Virology and Viral Diseases, National Health Commission; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing, People’s Republic of China
| | - Wei-Juan Huang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Reference and Research on Influenza; Key Laboratory for Medical Virology and Viral Diseases, National Health Commission; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing, People’s Republic of China
| | - Xi-Yan Li
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Reference and Research on Influenza; Key Laboratory for Medical Virology and Viral Diseases, National Health Commission; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing, People’s Republic of China
| | - Yan-Hui Cheng
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Reference and Research on Influenza; Key Laboratory for Medical Virology and Viral Diseases, National Health Commission; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing, People’s Republic of China
| | - Li-Qi Liu
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Reference and Research on Influenza; Key Laboratory for Medical Virology and Viral Diseases, National Health Commission; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing, People’s Republic of China
| | - Ning Xiao
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Reference and Research on Influenza; Key Laboratory for Medical Virology and Viral Diseases, National Health Commission; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing, People’s Republic of China
| | - Da-Yan Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention; WHO Collaborating Centre for Reference and Research on Influenza; Key Laboratory for Medical Virology and Viral Diseases, National Health Commission; National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Disease, Beijing, People’s Republic of China
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Bialy D, Richardson S, Chrzastek K, Bhat S, Polo N, Freimanis G, Iqbal M, Shelton H. Recombinant A(H6N1)-H274Y avian influenza virus with dual drug resistance does not require permissive mutations to retain the replicative fitness in vitro and in ovo. Virology 2024; 590:109954. [PMID: 38086284 DOI: 10.1016/j.virol.2023.109954] [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: 11/02/2023] [Accepted: 11/23/2023] [Indexed: 01/03/2024]
Abstract
The possible emergence of drug-resistant avian flu raises concerns over the limited effectiveness of currently approved antivirals (neuraminidase inhibitors - NAIs) in the hypothetical event of a zoonotic spillover. Our study demonstrated that the recombinant avian A(H6N1) viruses showed reduced inhibition (RI) by multiple NAI drugs following the introduction of point mutations found predominantly in the neuraminidase gene (NA) of NAI-resistant human influenza strains (E119V, R292K and H274Y; N2 numbering). Moreover, A(H6N1)-H274Y showed increased replication efficiency in vitro, and a fitness advantage over wild-type (WT) when co-inoculated into embryonated hen's eggs. The results presented in our study together with the zoonotic potential of the A(H6N1) virus as evidenced by the human infection from 2013, highlight the need for enhanced monitoring of NAI resistance-associated signatures in circulating LPAI (low pathogenic avian influenza) globally.
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Affiliation(s)
- Dagmara Bialy
- The Pirbright Institute, Pirbright, Woking, Surrey, GU24 0NF, United Kingdom.
| | - Samuel Richardson
- The Pirbright Institute, Pirbright, Woking, Surrey, GU24 0NF, United Kingdom
| | - Klaudia Chrzastek
- The Pirbright Institute, Pirbright, Woking, Surrey, GU24 0NF, United Kingdom
| | - Sushant Bhat
- The Pirbright Institute, Pirbright, Woking, Surrey, GU24 0NF, United Kingdom
| | - Noemi Polo
- The Pirbright Institute, Pirbright, Woking, Surrey, GU24 0NF, United Kingdom
| | - Graham Freimanis
- The Pirbright Institute, Pirbright, Woking, Surrey, GU24 0NF, United Kingdom
| | - Munir Iqbal
- The Pirbright Institute, Pirbright, Woking, Surrey, GU24 0NF, United Kingdom
| | - Holly Shelton
- The Pirbright Institute, Pirbright, Woking, Surrey, GU24 0NF, United Kingdom
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Chao S, Wang Y, Wu B, Li R, Dong J, Ji L, Li X, Li R, Yin X, Zhao X, Liang W. Characterization of viral infections in children with influenza-like-illness during December 2018-January 2019. Front Cell Infect Microbiol 2024; 13:1351814. [PMID: 38304460 PMCID: PMC10830827 DOI: 10.3389/fcimb.2023.1351814] [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: 12/07/2023] [Accepted: 12/26/2023] [Indexed: 02/03/2024] Open
Abstract
Introduction Respiratory viral infection (RVI) is of very concern after the outbreak of COVID-19, especially in pediatric departments. Learning pathogen spectrum of RVI in children previous the epidemic of COVID-19 could provide another perspective for understanding RVI under current situation and help to prepare for the post COVID-19 infection control. Methods A nucleic acid sequence-based amplification (NASBA) assay, with 19 pairs of primers targeting various respiratory viruses, was used for multi-pathogen screening of viral infections in children presenting influenza-like illness (ILI) symptoms. Children with ILI at the outpatient department of Beijing Tsinghua Changgung Hospital during the influenza epidemic from 12/2018 to 01/2019 were included. Throat swabs were obtained for both the influenza rapid diagnostic test (IRDT) based on the colloidal gold immunochromatographic assay and the NASBA assay, targeting various respiratory viruses with an integrated chip technology. Results and discussion Of 519 patients, 430 (82.9%) were positive in the NASBA assay. The predominant viral pathogens were influenza A H1N1 pdm1/2009 (pH1N1) (48.4%) and influenza A (H3N2) (18.1%), followed by human metapneumovirus (hMPV) (8.8%) and respiratory syncytial virus (RSV) (6.1%). Of the 320 cases identified with influenza A by NASBA, only 128 (40.0%) were positive in the IRDT. The IRDT missed pH1N1 significantly more frequently than A (H3N2) (P<0.01). Influenza A pH1N1 and A (H3N2) were the major pathogens in <6 years and 6-15 years old individuals respectively (P<0.05). In summary, influenza viruses were the major pathogens in children with ILI during the 2018-2019 winter influenza epidemic, while hMPV and RSV were non-negligible. The coexistence of multiple pathogen leading to respiratory infections is the normalcy in winter ILI cases.
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Affiliation(s)
- Shuang Chao
- Department of Pediatrics, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Yuejiao Wang
- Department of Pediatrics, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Baolei Wu
- Vanke School of Public Health, Tsinghua University, Beijing, China
| | - Runqing Li
- Department of Clinical Laboratory, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Jingxiao Dong
- Department of Clinical Laboratory, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Lina Ji
- Department of Pediatrics, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Xuejun Li
- Department of Pediatrics, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Ran Li
- Department of Pediatrics, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Xiaomei Yin
- Department of Pediatrics, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Xiuying Zhao
- Department of Clinical Laboratory, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Wannian Liang
- Vanke School of Public Health, Tsinghua University, Beijing, China
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Jeyaram RA, Anu Radha C. N1 neuraminidase of H5N1 avian influenza A virus complexed with sialic acid and zanamivir - A study by molecular docking and molecular dynamics simulation. J Biomol Struct Dyn 2022; 40:11434-11447. [PMID: 34369311 DOI: 10.1080/07391102.2021.1962407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Development of antiviral drugs is an urgent need to control and prevent the presently circulating H5N1 avian influenza virus which is affects the human respiratory tract. The complex crystal structure of N1-N-acetylneuranamic acid (sialic acid, SIA) is not available as complex and hence SIA and zanamivir (ZMR) are docked into the binding site of N1 neuraminidase. Based on the analysis, the initial complex structures have been simulated for 120 ns to get insight into the binding modes and interaction between protein-ligand complex systems. NAMD pair interaction energy and MM-PBSA binding free energy are calculated and show that there are two possible binding modes (BM1 and BM2) for N1-SIA and a single binding mode (BM1) for and N1-ZMR complex structures respectively. BM1 of N1-SIA is the most preferred binding mode. On contrary to the currently available drugs in which the chair conformation is distorted, in both the binding modes of N1-SIA, the binding pocket of N1 neuraminidase is able to accommodate SIA in 2C5 chair conformation which is the preferred conformation of SIA in solution state. In N1-ZMR complex, ZMR is bind in a distorted chair conformation. The neuraminidase binding pocket is also able to accommodate galactose of SIAα(2→3)GAL and SIAα(2→6)GAL. RMSD, RMSF and hydrogen bonding analyses have been carried out to identify the conformational flexibility and structural stability of each complex system. All the analyses show that SIA can be used as an inhibitor for N1 neuraminidase of H5N1 influenza viral infection. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- R A Jeyaram
- Research Laboratory of Molecular Biophysics, Department of Physics, School of Advanced Sciences, Vellore Institute of Technology, Vellore, India
| | - C Anu Radha
- Research Laboratory of Molecular Biophysics, Department of Physics, School of Advanced Sciences, Vellore Institute of Technology, Vellore, India
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Ugbaja SC, Mtambo SE, Mushebenge AG, Appiah-Kubi P, Abubakar BH, Ntuli ML, Kumalo HM. Structural Investigations and Binding Mechanisms of Oseltamivir Drug Resistance Conferred by the E119V Mutation in Influenza H7N9 Virus. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27144376. [PMID: 35889251 PMCID: PMC9317591 DOI: 10.3390/molecules27144376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 12/02/2022]
Abstract
The use of vaccinations and antiviral medications have gained popularity in the therapeutic management of avian influenza H7N9 virus lately. Antiviral medicines are more popular due to being readily available. The presence of the neuraminidase protein in the avian influenza H7N9 virus and its critical role in the cleavage of sialic acid have made it a target drug in the development of influenza virus drugs. Generally, the neuraminidase proteins have common conserved amino acid residues and any mutation that occurs around or within these conserved residues affects the susceptibility and replicability of the influenza H7N9 virus. Herein, we investigated the interatomic and intermolecular dynamic impacts of the experimentally reported E119V mutation on the oseltamivir resistance of the influenza H7N9 virus. We extensively employed molecular dynamic (MD) simulations and subsequent post-MD analyses to investigate the binding mechanisms of oseltamivir-neuraminidase wildtype and E119V mutant complexes. The results revealed that the oseltamivir-wildtype complex was more thermodynamically stable than the oseltamivir-E119V mutant complex. Oseltamivir exhibited a greater binding affinity for wildtype (−15.46 ± 0.23 kcal/mol) relative to the E119V mutant (−11.72 ± 0.21 kcal/mol). The decrease in binding affinity (−3.74 kcal/mol) was consistent with RMSD, RMSF, SASA, PCA, and hydrogen bonding profiles, confirming that the E119V mutation conferred lower conformational stability and weaker protein–ligand interactions. The findings of this oseltamivir-E119V mutation may further assist in the design of compounds to overcome E119V mutation in the treatment of influenza H7N9 virus patients.
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Affiliation(s)
- Samuel C. Ugbaja
- Drug Research and Innovation Unit, Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban 4000, South Africa; (S.E.M.); (A.G.M.); (P.A.-K.)
- Correspondence: (S.C.U.); (H.M.K.)
| | - Sphamandla E. Mtambo
- Drug Research and Innovation Unit, Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban 4000, South Africa; (S.E.M.); (A.G.M.); (P.A.-K.)
| | - Aganze G. Mushebenge
- Drug Research and Innovation Unit, Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban 4000, South Africa; (S.E.M.); (A.G.M.); (P.A.-K.)
| | - Patrick Appiah-Kubi
- Drug Research and Innovation Unit, Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban 4000, South Africa; (S.E.M.); (A.G.M.); (P.A.-K.)
| | - Bahijjahtu H. Abubakar
- Renewable Energy Programme, Federal Ministry of Environment, 444 Aguiyi Ironsi Way, Maitama, Abuja 900271, Nigeria;
| | - Mthobisi L. Ntuli
- Department of Mathematics, Faculty of Applied Science, Durban University of Technology, Durban 4000, South Africa;
| | - Hezekiel M. Kumalo
- Drug Research and Innovation Unit, Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban 4000, South Africa; (S.E.M.); (A.G.M.); (P.A.-K.)
- Correspondence: (S.C.U.); (H.M.K.)
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Mtambo SE, Ugbaja SC, Mushebenge AG, Abubakar BH, Ntuli ML, Kumalo HM. Intermolecular Mechanism and Dynamic Investigation of Avian Influenza H7N9 Virus' Susceptibility to E119V-Substituted Peramivir-Neuraminidase Complex. Molecules 2022; 27:1640. [PMID: 35268741 PMCID: PMC8911867 DOI: 10.3390/molecules27051640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/14/2022] [Accepted: 01/14/2022] [Indexed: 11/24/2022] Open
Abstract
The H7N9 virus attaches itself to the human cell receptor protein containing the polysaccharide that terminates with sialic acid. The mutation of neuraminidase at residue E119 has been explored experimentally. However, there is no adequate information on the substitution with E119V in peramivir at the intermolecular level. Therefore, a good knowledge of the interatomic interactions is a prerequisite in understanding its transmission mode and subsequent effective inhibitions of the sialic acid receptor cleavage by neuraminidase. Herein, we investigated the mechanism and dynamism on the susceptibility of the E119V mutation on the peramivir-neuraminidase complex relative to the wildtype complex at the intermolecular level. This study aims to investigate the impact of the 119V substitution on the neuraminidase-peramivir complex and unveil the residues responsible for the complex conformations. We employed molecular dynamic (MD) simulations and extensive post-MD analyses in the study. These extensive computational investigations were carried out on the wildtype and the E119V mutant complex of the protein for holistic insights in unveiling the effects of this mutation on the binding affinity and the conformational terrain of peramivir-neuraminidase E119V mutation. The calculated total binding energy (ΔGbind) for the peramivir wildtype is -49.09 ± 0.13 kcal/mol, while the E119V mutant is -58.55 ± 0.15 kcal/mol. The increase in binding energy (9.46 kcal/mol) is consistent with other post-MD analyses results, confirming that E119V substitution confers a higher degree of stability on the protein complex. This study promises to proffer contributory insight and additional knowledge that would enhance future drug designs and help in the fight targeted at controlling the avian influenza H7N9 virus. Therefore, we suggest that experimentalists collaborate with computational chemists for all investigations of this topic, as we have done in our previous studies.
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Affiliation(s)
- Sphamandla E. Mtambo
- Drug Research and Innovation Unit, Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban 4000, South Africa; (S.E.M.); (A.G.M.)
| | - Samuel C. Ugbaja
- Drug Research and Innovation Unit, Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban 4000, South Africa; (S.E.M.); (A.G.M.)
| | - Aganze G. Mushebenge
- Drug Research and Innovation Unit, Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban 4000, South Africa; (S.E.M.); (A.G.M.)
| | - Bahijjahtu H. Abubakar
- Renewable Energy Programme, Federal Ministry of Environment, 444 Aguiyi Ironsi Way, Maitama, Abuja 904101, Nigeria;
| | - Mthobisi L. Ntuli
- Department of Mathematics, Faculty of Applied Science, Durban University of Technology, Durban 4001, South Africa;
| | - Hezekiel M. Kumalo
- Drug Research and Innovation Unit, Discipline of Medical Biochemistry, School of Laboratory Medicine and Medical Science, University of KwaZulu-Natal, Durban 4000, South Africa; (S.E.M.); (A.G.M.)
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Park G, Kim HO, Lim JW, Park C, Yeom M, Song D, Haam S. Rapid detection of influenza A (H1N1) virus by conductive polymer-based nanoparticle via optical response to virus-specific binding. NANO RESEARCH 2021; 15:2254-2262. [PMID: 34567436 PMCID: PMC8453473 DOI: 10.1007/s12274-021-3772-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/22/2021] [Accepted: 07/25/2021] [Indexed: 05/28/2023]
Abstract
UNLABELLED A recurrent pandemic with unpredictable viral nature has implied the need for a rapid diagnostic technology to facilitate timely and appropriate countermeasures against viral infections. In this study, conductive polymer-based nanoparticles have been developed as a tool for rapid diagnosis of influenza A (H1N1) virus. The distinctive property of a conductive polymer that transduces stimulus to respond, enabled immediate optical signal processing for the specific recognition of H1N1 virus. Conductive poly(aniline-co-pyrrole)-encapsulated polymeric vesicles, functionalized with peptides, were fabricated for the specific recognition of H1N1 virus. The low solubility of conductive polymers was successfully improved by employing vesicles consisting of amphiphilic copolymers, facilitating the viral titer-dependent production of the optical response. The optical response of the detection system to the binding event with H1N1, a mechanical stimulation, was extensively analyzed and provided concordant information on viral titers of H1N1 virus in 15 min. The specificity toward the H1N1 virus was experimentally demonstrated via a negative optical response against the control group, H3N2. Therefore, the designed system that transduces the optical response to the target-specific binding can be a rapid tool for the diagnosis of H1N1. ELECTRONIC SUPPLEMENTARY MATERIAL Supplementary material (Table S1 and Figs. S1-S8) is available in the online version of this article at 10.1007/s12274-021-3772-6.
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Affiliation(s)
- Geunseon Park
- Department of Chemical & Biomolecular Engineering, Yonsei University, Seoul, 03722 Republic of Korea
| | - Hyun-Ouk Kim
- Division of Chemical Engineering and Bioengineering College of Art, Culture and Engineering, Kangwon National University, Chuncheon-si, Gangwon-do, 24341 Republic of Korea
- Biohealth-machinery Convergence Engineering, Kangwon National University, Chuncheon, Gangwon-do, 24341 Republic of Korea
| | - Jong-Woo Lim
- Department of Chemical & Biomolecular Engineering, Yonsei University, Seoul, 03722 Republic of Korea
| | - Chaewon Park
- Department of Chemical & Biomolecular Engineering, Yonsei University, Seoul, 03722 Republic of Korea
| | - Minjoo Yeom
- College of Pharmacy, Korea University, Sejong, 30019 Republic of Korea
| | - Daesub Song
- College of Pharmacy, Korea University, Sejong, 30019 Republic of Korea
| | - Seungjoo Haam
- Department of Chemical & Biomolecular Engineering, Yonsei University, Seoul, 03722 Republic of Korea
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Substitution of I222L-E119V in neuraminidase from highly pathogenic avian influenza H7N9 virus exhibited synergistic resistance effect to oseltamivir in mice. Sci Rep 2021; 11:16293. [PMID: 34381119 PMCID: PMC8358046 DOI: 10.1038/s41598-021-95771-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 07/29/2021] [Indexed: 11/08/2022] Open
Abstract
That the high frequency and good replication capacity of strains with reduced susceptibility to neuraminidase inhibitors (NAIs) in highly pathogenic avian influenza H7N9 (HPAI H7N9) virus made it a significance to further study its drug resistance. HPAI H7N9 viruses bearing NA I222L or E119V substitution and two mutations of I222L-E119V as well as their NAIs-sensitive counterpart were generated by reverse genetics for NA inhibition test and replication capability evaluation in vitro. The attenuated H7N9/PR8 recombinant viruses were developed to study the pathogenicity and drug resistance brought by the above substitutions to mice. The IC50 fold change of oseltamivir to HPAI H7N9 with NA222L-119V is 306.34 times than that of its susceptible strain, and 3.5 times than the E119V mutant virus. HPAI H7N9 bearing NA222L-119V had good replication ability with peak value of more than 6log10 TCID50/ml in MDCK cells. H7N9/PR8 virus bearing NA222L-119V substitutions leaded to diffuse pneumonia, significant weight loss and fatality in mice. NA E119V made H7N9/PR8 virus resistant to oseltamivir, and I222L-E119V had synergistic resistance to oseltamivir in mice. Due to the good fitness of drug resistant strains of HPAI H7N9 virus, it is necessary to strengthen drug resistance surveillance and new drug research.
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Jeong JH, Choi WS, Antigua KJC, Choi YK, Govorkova EA, Webby RJ, Baek YH, Song MS. In Vitro Profiling of Laninamivir-Resistant Substitutions in N3 to N9 Avian Influenza Virus Neuraminidase Subtypes and Their Association with In Vivo Susceptibility. J Virol 2020; 95:e01679-20. [PMID: 33055248 PMCID: PMC7737746 DOI: 10.1128/jvi.01679-20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 10/05/2020] [Indexed: 11/20/2022] Open
Abstract
Laninamivir (LAN) is a long-acting neuraminidase (NA) inhibitor (NAI) with a similar binding profile in the influenza NA enzyme active site as those of other NAIs, oseltamivir (OS), zanamivir (ZAN), and peramivir, and may share common resistance markers with these NAIs. We screened viruses with NA substitutions previously found during OS and ZAN selection in avian influenza viruses (AIVs) of the N3 to N9 subtypes for LAN susceptibility. Of the 72 NA substitutions, 19 conferred resistance to LAN, which ranged from 11.2- to 549.8-fold-decreased inhibitory activity over that of their parental viruses. Ten NA substitutions reduced the susceptibility to all four NAIs, whereas the remaining 26 substitutions yielded susceptibility to one or more NAIs. To determine whether the in vitro susceptibility of multi-NAI-resistant AIVs is associated with in vivo susceptibility, we infected BALB/c mice with recombinant AIVs with R292K (ma81K-N3R292K) or Q136K (ma81K-N8Q136K) NA substitutions, which impart in vitro susceptibility only to LAN or OS, respectively. Both ma81K-N3R292K and ma81K-N8Q136K virus-infected mice exhibited reduced weight loss, mortality, and lung viral titers when treated with their susceptible NAIs, confirming the in vitro susceptibility of these substitutions. Together, LAN resistance profiling of AIVs of a range of NA subtypes improves the understanding of NAI resistance mechanisms. Furthermore, the association of in vitro and in vivo NAI susceptibility indicates that our models are useful tools for monitoring NAI susceptibility of AIVs.IMPORTANCE The chemical structures of neuraminidase inhibitors (NAIs) possess similarities, but slight differences can result in variable susceptibility of avian influenza viruses (AIVs) carrying resistance-associated NA substitutions. Therefore, comprehensive susceptibility profiling of these substitutions in AIVs is critical for understanding the mechanism of antiviral resistance. In this study, we profiled resistance to the anti-influenza drug laninamivir in AIVs with substitutions known to impart resistance to other NAIs. We found 10 substitutions that conferred resistance to all four NAIs tested. On the other hand, we found that the remaining 26 NA substitutions were susceptible to at least one or more NAIs and showed for a small selection that in vitro data predicted in vivo behavior. Therefore, our findings highlight the usefulness of screening resistance markers in NA enzyme inhibition assays and animal models of AIV infections.
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Affiliation(s)
- Ju Hwan Jeong
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Won-Suk Choi
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Khristine Joy C Antigua
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Young Ki Choi
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Elena A Govorkova
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Richard J Webby
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Yun Hee Baek
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
| | - Min-Suk Song
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju, Republic of Korea
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10
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Rao X, Chen Z, Dong H, Zhu C, Yan Y. Epidemiology of influenza in hospitalized children with respiratory tract infection in Suzhou area from 2016 to 2019. J Med Virol 2020; 92:3038-3046. [PMID: 32410248 DOI: 10.1002/jmv.26015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/08/2020] [Accepted: 05/12/2020] [Indexed: 01/27/2023]
Abstract
Influenza is a contagious respiratory disease and risks public health in China, and it has caused wide public concern in recent years. Immunocompromised patients, such as children and elderly people, suffer more severe influenza complication and some extreme cases are even life threatening. To identify the influenza characteristics and its correlation with various climatic and environmental pollution factors, we collected the reported influenza epidemic of hospitalized children in Children's Hospital of Soochow University from 2016 to 2019. Our results show that the main influenza virus subtypes are A/H1N1, A/H3N2, B/BV, and B/BY. We also identified the characteristics of the prevalent influenza virus subtypes in different months, seasons, years, and patients' age. Of all the influenza infected patients, the most susceptible groups are children over 3 to 5 years of age, and more cases are reported in winter than other seasons. We also found that influenza is also highly correlated with climatic and environmental pollution factors, and the autoregressive integrated moving average model is employed for the short-term influenza prediction in Suzhou city, which can provide scientific basis for the prevention and control of influenza and public health decision-making.
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Affiliation(s)
- Xingyu Rao
- Children's Hospital of Soochow University, Suzhou, China
- First Affiliated Hospital of Gannan Medical University, Ganzhou, China
| | - Zhengrong Chen
- Children's Hospital of Soochow University, Suzhou, China
| | - Heting Dong
- Children's Hospital of Soochow University, Suzhou, China
| | - Canhong Zhu
- Children's Hospital of Soochow University, Suzhou, China
| | - Yongdong Yan
- Children's Hospital of Soochow University, Suzhou, China
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11
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Tang J, Zhang SX, Zhang J, Li XY, Zhou JF, Zou SM, Bo H, Xin L, Yang L, Liu J, Huang WJ, Dong J, Wang DY. Profile and generation of reduced neuraminidase inhibitor susceptibility in highly pathogenic avian influenza H7N9 virus from human cases in Mainland of China, 2016-2019. Virology 2020; 549:77-84. [PMID: 32853849 DOI: 10.1016/j.virol.2020.07.018] [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: 04/08/2020] [Revised: 07/08/2020] [Accepted: 07/30/2020] [Indexed: 02/08/2023]
Abstract
Human infections with highly pathogenic avian influenza (HPAI) H7N9 virus were detected in late 2016. We examined the drug resistance profile of 30 HPAI H7N9 isolates from Mainland of China (2016-2019). Altogether, 23% (7/30) carried neuraminidase inhibitors (NAIs) - resistance mutations, and 13% (4/30) displayed reduced susceptibility to NAIs in neuraminidase (NA) inhibition test. An HPAI H7N9 reassortment virus we prepared was passaged with NAIs for 10 passages. Passage with zanamivir induced an E119G substitution in NA, whereas passage with oseltamivir induced R292K and E119V substitutions that simulated that seen in oseltamivir -treated HPAI H7N9 cases, indicating that the high frequency of resistant strains in the HPAI H7N9 isolates is related to NAIs use. In presence of NAIs, R238I, A146E, G151E and G234T substitutions were found in HA1 region of HA. No amino acid mutations were found in the internal genes of the recombinant virus.
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Affiliation(s)
- Jing Tang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Reference and Research on Influenza, Beijing, China
| | - Shu-Xia Zhang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Reference and Research on Influenza, Beijing, China
| | - Jing Zhang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Reference and Research on Influenza, Beijing, China
| | - Xi-Yan Li
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Reference and Research on Influenza, Beijing, China
| | - Jian-Fang Zhou
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Reference and Research on Influenza, Beijing, China
| | - Shu-Mei Zou
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Reference and Research on Influenza, Beijing, China
| | - Hong Bo
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Reference and Research on Influenza, Beijing, China
| | - Li Xin
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Reference and Research on Influenza, Beijing, China
| | - Lei Yang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Reference and Research on Influenza, Beijing, China
| | - Jia Liu
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Reference and Research on Influenza, Beijing, China
| | - Wei-Juan Huang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Reference and Research on Influenza, Beijing, China
| | - Jie Dong
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Reference and Research on Influenza, Beijing, China
| | - Da-Yan Wang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, WHO Collaborating Center for Reference and Research on Influenza, Beijing, China.
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12
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Tzeng TT, Chen PL, Weng TC, Tsai SY, Lai CC, Chou HI, Chen PW, Lu CC, Liu MT, Sung WC, Lee MS, Hu AYC. Development of high-growth influenza H7N9 prepandemic candidate vaccine viruses in suspension MDCK cells. J Biomed Sci 2020; 27:47. [PMID: 32241276 PMCID: PMC7115086 DOI: 10.1186/s12929-020-00645-y] [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: 09/16/2019] [Accepted: 03/27/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Influenza vaccine manufacturers traditionally use egg-derived candidate vaccine viruses (CVVs) to produce high-yield influenza viruses for seasonal or pandemic vaccines; however, these egg-derived CVVs need an adaptation process for the virus to grow in mammalian cells. The low yields of cell-based manufacturing systems using egg-derived CVVs remain an unsolved issue. This study aimed to develop high-growth cell-derived CVVs for MDCK cell-based vaccine manufacturing platforms. METHODS Four H7N9 CVVs were generated in characterized Vero and adherent MDCK (aMDCK) cells. Furthermore, reassortant viruses were amplified in adherent MDCK (aMDCK) cells with certification, and their growth characteristics were detected in aMDCK cells and new suspension MDCK (sMDCK) cells. Finally, the plaque-forming ability, biosafety, and immunogenicity of H7N9 reassortant viruses were evaluated. RESULTS The HA titers of these CVVs produced in proprietary suspension MDCK (sMDCK) cells and chicken embryos were 2- to 8-fold higher than those in aMDCK cells. All H7N9 CVVs showed attenuated characteristics by trypsin-dependent plaque assay and chicken embryo lethality test. The alum-adjuvanted NHRI-RG5 (derived from the fifth wave H7N9 virus A/Guangdong/SP440/2017) vaccine had the highest immunogenicity and cross-reactivity among the four H7N9 CVVs. Finally, we found that AddaVax adjuvant improved the cross-reactivity of low pathogenic H7N9 virus against highly pathogenic H7N9 viruses. CONCLUSIONS Our study indicates that cell-derived H7N9 CVVs possessed high growth rate in new sMDCK cells and low pathogenicity in chicken embryo, and that CVVs generated by this platform are also suitable for both cell- and egg-based prepandemic vaccine production.
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Affiliation(s)
- Tsai-Teng Tzeng
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Po-Ling Chen
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan.,Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Tsai-Chuan Weng
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Shin-Yi Tsai
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Chia-Chun Lai
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan.,College of Life Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Hsin-I Chou
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Pin-Wen Chen
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Chia-Chun Lu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Ming-Tsan Liu
- Centers for Disease Control, Ministry of Health and Welfare, Taipei, 689, Taiwan
| | - Wang-Chou Sung
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Min-Shi Lee
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan
| | - Alan Yung-Chih Hu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), 35 Keyan Road, Zhunan, Miaoli County, 35053, Taiwan.
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