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Yang F, Yan S, Zhu L, Wang FX, Liu F, Cheng L, Yao H, Wu N, Lu R, Wu H. Evaluation of panel of neutralising murine monoclonal antibodies and a humanised bispecific antibody against influenza A(H1N1)pdm09 virus infection in a mouse model. Antiviral Res 2022; 208:105462. [DOI: 10.1016/j.antiviral.2022.105462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 11/01/2022] [Accepted: 11/06/2022] [Indexed: 11/15/2022]
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Kong B, Moon S, Kim Y, Heo P, Jung Y, Yu SH, Chung J, Ban C, Kim YH, Kim P, Hwang BJ, Chung WJ, Shin YK, Seong BL, Kweon DH. Virucidal nano-perforator of viral membrane trapping viral RNAs in the endosome. Nat Commun 2019; 10:185. [PMID: 30643128 PMCID: PMC6331592 DOI: 10.1038/s41467-018-08138-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 12/18/2018] [Indexed: 11/09/2022] Open
Abstract
Membrane-disrupting agents that selectively target virus versus host membranes could potentially inhibit a broad-spectrum of enveloped viruses, but currently such antivirals are lacking. Here, we develop a nanodisc incorporated with a decoy virus receptor that inhibits virus infection. Mechanistically, nanodiscs carrying the viral receptor sialic acid bind to influenza virions and are co-endocytosed into host cells. At low pH in the endosome, the nanodiscs rupture the viral envelope, trapping viral RNAs inside the endolysosome for enzymatic decomposition. In contrast, liposomes containing a decoy receptor show weak antiviral activity due to the lack of membrane disruption. The nanodiscs inhibit influenza virus infection and reduce morbidity and mortality in a mouse model. Our results suggest a new class of antivirals applicable to other enveloped viruses that cause irreversible physical damage specifically to virus envelope by viruses' own fusion machine. In conclusion, the lipid nanostructure provides another dimension for antiviral activity of decoy molecules.
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Affiliation(s)
- Byoungjae Kong
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Seokoh Moon
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Yuna Kim
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Paul Heo
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Younghun Jung
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Seok-Hyeon Yu
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Jinhyo Chung
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Choongjin Ban
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Yong Ho Kim
- Biomedical Institute for Convergence, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Paul Kim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Beom Jeung Hwang
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Woo-Jae Chung
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Yeon-Kyun Shin
- Department of Biochemistry Biophysics and Molecular Biology, Iowa State University, Iowa, IA, 50011, USA
| | - Baik Lin Seong
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Dae-Hyuk Kweon
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, 16419, Republic of Korea. .,Biomedical Institute for Convergence, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
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Yoon A, Yi KS, Chang SY, Kim SH, Song M, Choi JA, Bourgeois M, Hossain MJ, Chen LM, Donis RO, Kim H, Lee Y, Hwang DB, Min JY, Chang SJ, Chung J. An Anti-Influenza Virus Antibody Inhibits Viral Infection by Reducing Nucleus Entry of Influenza Nucleoprotein. PLoS One 2015; 10:e0141312. [PMID: 26512723 PMCID: PMC4626144 DOI: 10.1371/journal.pone.0141312] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 10/07/2015] [Indexed: 01/23/2023] Open
Abstract
To date, four main mechanisms mediating inhibition of influenza infection by anti-hemagglutinin antibodies have been reported. Anti-globular-head-domain antibodies block either influenza virus receptor binding to the host cell or progeny virion release from the host cell. Anti-stem region antibodies hinder the membrane fusion process or induce antibody-dependent cytotoxicity to infected cells. In this study we identified a human monoclonal IgG1 antibody (CT302), which does not inhibit both the receptor binding and the membrane fusion process but efficiently reduced the nucleus entry of viral nucleoprotein suggesting a novel inhibition mechanism of viral infection by antibody. This antibody binds to the subtype-H3 hemagglutinin globular head domain of group-2 influenza viruses circulating throughout the population between 1997 and 2007.
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MESH Headings
- Amino Acid Sequence
- Animals
- Antibodies, Monoclonal/immunology
- Antibodies, Neutralizing/immunology
- Antibodies, Viral/immunology
- Antibody Affinity/immunology
- Cell Line
- Disease Models, Animal
- Epitope Mapping/methods
- Epitopes/chemistry
- Epitopes/immunology
- Ferrets
- Hemagglutinin Glycoproteins, Influenza Virus/chemistry
- Hemagglutinin Glycoproteins, Influenza Virus/immunology
- Hemagglutinin Glycoproteins, Influenza Virus/metabolism
- Humans
- Immunoglobulin G/immunology
- Influenza A Virus, H3N2 Subtype/immunology
- Influenza, Human/immunology
- Influenza, Human/virology
- Male
- Mice
- Models, Molecular
- Molecular Sequence Data
- Neutralization Tests
- Nucleoproteins/metabolism
- Orthomyxoviridae/physiology
- Orthomyxoviridae Infections/immunology
- Orthomyxoviridae Infections/virology
- Protein Binding
- Protein Conformation
- Sequence Alignment
- Virus Replication
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Affiliation(s)
- Aerin Yoon
- Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul National University, Seoul, South Korea
- Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, South Korea
| | - Kye Sook Yi
- Biotechnology Research Institute, Celltrion Inc., Incheon, South Korea
| | | | - Sung Hwan Kim
- Biotechnology Research Institute, Celltrion Inc., Incheon, South Korea
| | - Manki Song
- International Vaccine Institute, Seoul, South Korea
| | - Jung Ah Choi
- International Vaccine Institute, Seoul, South Korea
| | - Melissa Bourgeois
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
| | - M. Jaber Hossain
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
| | - Li-Mei Chen
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
| | - Ruben O. Donis
- Influenza Division, Centers for Disease Control and Prevention, Atlanta, GA, United States of America
| | - Hyori Kim
- Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul National University, Seoul, South Korea
- Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, South Korea
| | - Yujean Lee
- Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul National University, Seoul, South Korea
- Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, South Korea
| | - Do Been Hwang
- Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul National University, Seoul, South Korea
- Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, South Korea
| | - Ji-Young Min
- Institut Pasteur Korea, Gyeonggi-do, South Korea
- * E-mail: (JC); (SJC); (JYM)
| | - Shin Jae Chang
- Biotechnology Research Institute, Celltrion Inc., Incheon, South Korea
- * E-mail: (JC); (SJC); (JYM)
| | - Junho Chung
- Department of Biochemistry and Molecular Biology, Seoul National University College of Medicine, Seoul National University, Seoul, South Korea
- Cancer Research Institute, Seoul National University College of Medicine, Seoul National University, Seoul, South Korea
- * E-mail: (JC); (SJC); (JYM)
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Direct administration in the respiratory tract improves efficacy of broadly neutralizing anti-influenza virus monoclonal antibodies. Antimicrob Agents Chemother 2015; 59:4162-72. [PMID: 25941218 DOI: 10.1128/aac.00290-15] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 04/27/2015] [Indexed: 12/11/2022] Open
Abstract
The emergence of influenza virus strains resistant to approved neuraminidase inhibitors and the time constrains after infection when these drugs can be effective constitute major drawbacks for this class of drugs. This highlights a critical need to discover new therapeutic agents that can be used for the treatment of influenza virus-infected patients. The use of broadly neutralizing anti-influenza monoclonal antibodies (MAbs) has been sought as an alternative immunotherapy against influenza infection. Here, we tested in mice previously characterized broadly neutralizing anti-hemagglutinin (HA) stalk MAbs prophylactically and therapeutically using different routes of administration. The efficacy of treatment against an influenza H1N1 pandemic virus challenge was compared between two systemic routes of administration, intraperitoneal (i.p.) and intravenous (i.v.), and two local routes, intranasal (i.n.) and aerosol (a.e.). The dose of MAb required for prophylactic protection was reduced by 10-fold in animals treated locally (i.n. or a.e.) compared with those treated systemically (i.p. or i.v.). Improved therapeutic protection was observed in animals treated i.n. on day 5 postinfection (60% survival) compared with those treated via the i.p. route (20% survival). An increase in therapeutic efficacy against other influenza virus subtypes (H5N1) was also observed when a local route of administration was used. Our findings demonstrate that local administration significantly decreases the amount of broadly neutralizing monoclonal antibody required for protection against influenza, which highlights the potential use of MAbs as a therapeutic agent for influenza-associated disease.
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Partial and full PCR-based reverse genetics strategy for influenza viruses. PLoS One 2012; 7:e46378. [PMID: 23029501 PMCID: PMC3460856 DOI: 10.1371/journal.pone.0046378] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Accepted: 08/29/2012] [Indexed: 12/30/2022] Open
Abstract
Since 1999, plasmid-based reverse genetics (RG) systems have revolutionized the way influenza viruses are studied. However, it is not unusual to encounter cloning difficulties for one or more influenza genes while attempting to recover virus de novo. To overcome some of these shortcomings we sought to develop partial or full plasmid-free RG systems. The influenza gene of choice is assembled into a RG competent unit by virtue of overlapping PCR reactions containing a cDNA copy of the viral gene segment under the control of RNA polymerase I promoter (pol1) and termination (t1) signals – herein referred to as Flu PCR amplicons. Transfection of tissue culture cells with either HA or NA Flu PCR amplicons and 7 plasmids encoding the remaining influenza RG units, resulted in efficient virus rescue. Likewise, transfections including both HA and NA Flu PCR amplicons and 6 RG plasmids also resulted in efficient virus rescue. In addition, influenza viruses were recovered from a full set of Flu PCR amplicons without the use of plasmids.
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Ye J, Shao H, Perez DR. Passive immune neutralization strategies for prevention and control of influenza A infections. Immunotherapy 2012; 4:175-86. [PMID: 22339460 DOI: 10.2217/imt.11.167] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Although vaccination significantly reduces influenza severity, seasonal human influenza epidemics still cause more than 250,000 deaths annually. Vaccine efficacy is limited in high-risk populations such as infants, the elderly and immunosuppressed individuals. In the event of an influenza pandemic (such as the 2009 H1N1 pandemic), a significant delay in vaccine availability represents a significant public health concern, particularly in high-risk groups. The increasing emergence of strains resistant to the two major anti-influenza drugs, adamantanes and neuraminidase inhibitors, and the continuous circulation of avian influenza viruses with pandemic potential in poultry, strongly calls for alternative prophylactic and treatment options. In this review, we focus on passive virus neutralization strategies for the prevention and control of influenza type A viruses.
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Affiliation(s)
- Jianqiang Ye
- Department of Veterinary Medicine, University of Maryland, College Park & Virginia - Maryland Regional College of Veterinary Medicine, College Park, MD 20742, USA
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