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Takahashi H, Nagata S, Odagiri T, Kageyama T. Establishment of the cross-clade antigen detection system for H5 subtype influenza viruses using peptide monoclonal antibodies specific for influenza virus H5 hemagglutinin. Biochem Biophys Res Commun 2018. [PMID: 29524417 DOI: 10.1016/j.bbrc.2018.03.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The H5 subtype of highly pathogenic avian influenza (H5 HPAI) viruses is a threat to both animal and human public health and has the potential to cause a serious future pandemic in humans. Thus, specific and rapid detection of H5 HPAI viruses is required for infection control in humans. To develop a simple and rapid diagnostic system to detect H5 HPAI viruses with high specificity and sensitivity, we attempted to prepare monoclonal antibodies (mAbs) that specifically recognize linear epitopes in hemagglutinin (HA) of H5 subtype viruses. Nine mAb clones were obtained from mice immunized with a synthetic partial peptide of H5 HA molecules conserved among various H5 HPAI viruses. The antigen-capture enzyme-linked immunosorbent assay using the most suitable combination of these mAbs, which bound specifically to lysed H5 HA under an optimized detergent condition, was specific for H5 viruses and could broadly detect H5 viruses in multiple different clades. Taken together, these peptide mAbs, which recognize linear epitopes in a highly conserved region of H5 HA, may be useful for specific and highly sensitive detection of H5 HPAI viruses and can help in the rapid diagnosis of human, avian, and animal H5 virus infections.
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MESH Headings
- Animals
- Antibodies, Monoclonal/chemistry
- Antibodies, Monoclonal/immunology
- Enzyme-Linked Immunosorbent Assay/methods
- Hemagglutinin Glycoproteins, Influenza Virus/analysis
- Hemagglutinin Glycoproteins, Influenza Virus/immunology
- Humans
- Influenza A Virus, H5N1 Subtype/immunology
- Influenza A Virus, H5N1 Subtype/isolation & purification
- Influenza A Virus, H5N2 Subtype/immunology
- Influenza A Virus, H5N2 Subtype/isolation & purification
- Influenza A Virus, H5N8 Subtype/immunology
- Influenza A Virus, H5N8 Subtype/isolation & purification
- Influenza, Human/diagnosis
- Influenza, Human/immunology
- Influenza, Human/virology
- Mice, Inbred BALB C
- Orthomyxoviridae Infections/diagnosis
- Orthomyxoviridae Infections/immunology
- Orthomyxoviridae Infections/virology
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Affiliation(s)
- Hitoshi Takahashi
- Influenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, Japan.
| | - Shiho Nagata
- Influenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, Japan.
| | - Takato Odagiri
- Influenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, Japan.
| | - Tsutomu Kageyama
- Influenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, Japan.
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Sączyńska V, Bierczyńska-Krzysik A, Cecuda-Adamczewska V, Baran P, Porębska A, Florys K, Zieliński M, Płucienniczak G. Production of highly and broad-range specific monoclonal antibodies against hemagglutinin of H5-subtype avian influenza viruses and their differentiation by mass spectrometry. Virol J 2018; 15:13. [PMID: 29334981 PMCID: PMC5769215 DOI: 10.1186/s12985-017-0886-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 10/31/2017] [Indexed: 02/08/2023] Open
Abstract
Background The highly pathogenic avian influenza viruses of the H5 subtype, such as the H5N1 viral strains or the novel H5N8 and H5N2 reassortants, are of both veterinary and public health concern worldwide. To combat these viruses, monoclonal antibodies (mAbs) against H5 hemagglutinin (HA) play a significant role. These mAbs are effective diagnostic and therapeutic agents and powerful tools in vaccine development and basic scientific research. The aim of this study was to obtain diagnostically valuable mAbs with broad strain specificity against H5-subtype AIVs. Results We applied the hybridoma method to produce anti-HA mAbs. The cloning and screening procedures resulted in the selection of 7 mouse hybridoma cell lines and their respective antibody clones. Preliminary immunoreactivity studies showed that these newly established mAbs, all of the IgG1 isotype, had high specificity and broad-range activities against the H5 HAs. However, these studies did not allow for a clear distinction among the selected antibodies and mAb-secreting hybridoma clones. To differentiate the analyzed mAbs and determine the exact number of hybridoma clones, peptide mapping of the Fc and Fab fragments was performed using a Matrix-Assisted Laser Desorption Ionization Time of Flight (MALDI-TOF/TOF) mass spectrometer. Detailed analyses of the acquired MS and MS/MS spectra confirmed that the Fc fragments constituted highly conserved species- and isotype-immunoglobulin components, whereas the Fab fragments exhibited considerable variation in the sequences that determine antibody specificity. This approach enabled unambiguous characterization of the selected mAbs according to their peptide composition. As a result, 6 different clones were distinguished. Conclusions Our work provided a unique panel of anti-H5 HA mAbs, which meets the demand for novel, high-specificity analytical tools for use in serologic surveillance. Applications of these mAbs in areas other than diagnostics are also possible. Moreover, we demonstrated for the first time that peptide mapping of antibody fragments with mass spectrometry is an efficient method for the differentiation of antibody clones and relevant antibody-producing cell lines. The method may be successfully used to characterize mAbs at the protein level. Electronic supplementary material The online version of this article (10.1186/s12985-017-0886-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Violetta Sączyńska
- Institute of Biotechnology and Antibiotics, Starościńska 5 Street, 02-516, Warsaw, Poland.
| | | | | | - Piotr Baran
- Institute of Biotechnology and Antibiotics, Starościńska 5 Street, 02-516, Warsaw, Poland
| | - Anna Porębska
- Institute of Biotechnology and Antibiotics, Starościńska 5 Street, 02-516, Warsaw, Poland
| | - Katarzyna Florys
- Institute of Biotechnology and Antibiotics, Starościńska 5 Street, 02-516, Warsaw, Poland
| | - Marcin Zieliński
- Institute of Biotechnology and Antibiotics, Starościńska 5 Street, 02-516, Warsaw, Poland
| | - Grażyna Płucienniczak
- Institute of Biotechnology and Antibiotics, Starościńska 5 Street, 02-516, Warsaw, Poland
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Onodera T, Hosono A, Odagiri T, Tashiro M, Kaminogawa S, Okuno Y, Kurosaki T, Ato M, Kobayashi K, Takahashi Y. Whole-Virion Influenza Vaccine Recalls an Early Burst of High-Affinity Memory B Cell Response through TLR Signaling. THE JOURNAL OF IMMUNOLOGY 2016; 196:4172-84. [PMID: 27053762 DOI: 10.4049/jimmunol.1600046] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 03/08/2016] [Indexed: 01/02/2023]
Abstract
Inactivated influenza vaccines have two formulations, whole- and split-virion types; however, how differential formulations impact their booster effects remain unknown. In this study, we demonstrate that whole-virion vaccines recall two waves of Ab responses, early T cell-independent (TI) and late T cell-dependent responses, whereas split-virion vaccines elicit the late T cell-dependent response only. Notably, higher-affinity Abs with improved neutralizing activity are provided from the early TI response, which emphasizes the important contribution of the formulation-dependent response in the protective immunity. Moreover, we show that the early TI response completely requires B cell-intrinsic TLR7 signaling, which can be delivered through viral RNAs within whole-virion vaccine. Thus, our results indicate that TLR agonists in whole-virion type improve recall Ab responses by directly targeting memory B cells, a finding with important implications for vaccine strategies aimed at the prompt recall of high-affinity neutralizing Abs.
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Affiliation(s)
- Taishi Onodera
- Department of Immunology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Akira Hosono
- Laboratory of Biological Chemistry on Food Functionalities, College of Bioresource Sciences, Nihon University, Kanagawa 252-8510, Japan
| | - Takato Odagiri
- Influenza Virus Research Center, National Institute of Infectious Diseases, Tokyo 208-0011, Japan
| | - Masato Tashiro
- Influenza Virus Research Center, National Institute of Infectious Diseases, Tokyo 208-0011, Japan
| | - Shuichi Kaminogawa
- Laboratory of Biological Chemistry on Food Functionalities, College of Bioresource Sciences, Nihon University, Kanagawa 252-8510, Japan
| | - Yoshinobu Okuno
- Kanonji Institute, The Research Foundation for Microbial Diseases, Osaka University, Kanonji, Kagawa 768-0065, Japan
| | - Tomohiro Kurosaki
- Laboratory of Lymphocyte Differentiation, Immunology Frontier Research Center, World Premier Institute, Osaka University, Osaka 565-0871, Japan; and Laboratory for Lymphocyte Differentiation, RIKEN Center for Integrative Medical Sciences, Kanagawa 230-0045, Japan
| | - Manabu Ato
- Department of Immunology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Kazuo Kobayashi
- Department of Immunology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan
| | - Yoshimasa Takahashi
- Department of Immunology, National Institute of Infectious Diseases, Tokyo 162-8640, Japan;
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Tsunetsugu-Yokota Y, Nishimura K, Misawa S, Kobayashi-Ishihara M, Takahashi H, Takayama I, Ohnishi K, Itamura S, Nguyen HLK, Le MTQ, Dang GT, Nguyen LT, Tashiro M, Kageyama T. Development of a sensitive novel diagnostic kit for the highly pathogenic avian influenza A (H5N1) virus. BMC Infect Dis 2014; 14:362. [PMID: 24992826 PMCID: PMC4227021 DOI: 10.1186/1471-2334-14-362] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 06/30/2014] [Indexed: 11/19/2022] Open
Abstract
Background Sporadic emergence of the highly pathogenic avian influenza (HPAI) H5N1 virus infection in humans is a serious concern because of the potential for a pandemic. Conventional or quantitative RT-PCR is the standard laboratory test to detect viral influenza infections. However, this technology requires well-equipped laboratories and highly trained personnel. A rapid, sensitive, and specific alternative screening method is needed. Methods By a luminescence-linked enzyme immunoassay, we have developed a H5N1 HPAI virus detection kit using anti-H5 hemagglutinin monoclonal antibodies in combination with the detection of a universal NP antigen of the type A influenza virus. The process takes 15 minutes by use of the fully automated luminescence analyzer, POCube. Resutls We tested this H5/A kit using 19 clinical specimens from 13 patients stored in Vietnam who were infected with clade 1.1 or clade 2.3.4 H5N1 HPAI virus. Approximately 80% of clinical specimens were H5-positive using the POCube system, whereas only 10% of the H5-positive samples were detected as influenza A-positive by an immunochromatography-based rapid diagnostic kit. Conclusions This novel H5/A kit using POCube is served as a rapid and sensitive screening test for H5N1 HPAI virus infection in humans.
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Affiliation(s)
- Yasuko Tsunetsugu-Yokota
- Department of Immunology, National Institute of Infectious Diseases, Shinjuku Tokyo 162-8640, Japan.
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Kobayashi-Ishihara M, Takahashi H, Ohnishi K, Nishimura K, Terahara K, Ato M, Itamura S, Kageyama T, Tsunetsugu-Yokota Y. Broad cross-reactive epitopes of the H5N1 influenza virus identified by murine antibodies against the A/Vietnam/1194/2004 hemagglutinin. PLoS One 2014; 9:e99201. [PMID: 24945805 PMCID: PMC4063728 DOI: 10.1371/journal.pone.0099201] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 05/12/2014] [Indexed: 01/07/2023] Open
Abstract
There is an urgent need for a rapid diagnostic system to detect the H5 subtype of the influenza A virus. We previously developed monoclonal antibodies (mAbs) against the H5 hemagglutinin (HA) for use in a rapid diagnostic kit. In this study, we determined the epitopes of the anti-H5 HA murine mAbs OM-b, AY-2C2, and YH-1A1. Binding assays of the mAbs to different strains of H5 HAs indicated that OM-b and AY-2C2 cross-reacted with HAs from clades 1, 2.1.3.2, 2.2, and 2.3.4, whereas YH-1A1 failed to bind to those of clades 2.1.3.2 and 2.3.4. HA chimeras revealed that the epitopes for each of the mAbs were in the HA1 region. Analysis of escape mutants revealed that OM-b and AY-2C2 mAbs interacted mainly with amino acid residues D43 and G46, and the YH-1A1 mAb interacted with G139 and K or R140 of H5 HA. Multiple alignments of H5 HA protein sequences showed that D43 and G46 were very conserved among H5N1 HAs, except those in clade 2.2.1 and clade 7 (88.7%). The epitope for YH-1A1 mAb was highly variable in the HAs of H5N1, although it was well conserved in those of H5N2-N9. The OM-b and AY-2C2 mAbs could bind to the HAs of clades 1.1 and 2.3.2.1 that are currently epidemic in Asia, and we conclude that these would be effective for the detection of H5N1 infections in this region.
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Affiliation(s)
- Mie Kobayashi-Ishihara
- Department of Immunology, National Institute of Infectious Diseases, Shinjuku, Tokyo, Japan
| | - Hitoshi Takahashi
- Influenza Virus Research Center, National Institute of Infectious Diseases, Musashimurayama, Tokyo, Japan
| | - Kazuo Ohnishi
- Department of Immunology, National Institute of Infectious Diseases, Shinjuku, Tokyo, Japan
| | - Kengo Nishimura
- Tsuruga Institute of Biotechnology, Toyobo, Co., Ltd., Tsuruga, Fukui, Japan
| | - Kazutaka Terahara
- Department of Immunology, National Institute of Infectious Diseases, Shinjuku, Tokyo, Japan
| | - Manabu Ato
- Department of Immunology, National Institute of Infectious Diseases, Shinjuku, Tokyo, Japan
| | - Shigeyuki Itamura
- Influenza Virus Research Center, National Institute of Infectious Diseases, Musashimurayama, Tokyo, Japan
| | - Tsutomu Kageyama
- Influenza Virus Research Center, National Institute of Infectious Diseases, Musashimurayama, Tokyo, Japan
| | - Yasuko Tsunetsugu-Yokota
- Department of Immunology, National Institute of Infectious Diseases, Shinjuku, Tokyo, Japan
- Department of Medical Technology, School of Human Sciences, Tokyo University of Technology, Ohta-ku, Tokyo, Japan
- * E-mail:
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