1
|
Li B, Ustyugova IV, Szymkowicz L, Zhu S, Ming M, Fung KYY, Cortés G, James DA, Hrynyk M, Rahman N, Brookes RH, Ausar SF. Formulation development of a stable influenza recombinant neuraminidase vaccine candidate. Hum Vaccin Immunother 2024; 20:2304393. [PMID: 38497413 PMCID: PMC10950269 DOI: 10.1080/21645515.2024.2304393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/09/2024] [Indexed: 03/19/2024] Open
Abstract
Current influenza vaccines could be augmented by including recombinant neuraminidase (rNA) protein antigen to broaden protective immunity and improve efficacy. Toward this goal, we investigated formulation conditions to optimize rNA physicochemical stability. When rNA in sodium phosphate saline buffer (NaPBS) was frozen and thawed (F/T), the tetrameric structure transitioned from a "closed" to an "open" conformation, negatively impacting functional activity. Hydrogen deuterium exchange experiments identified differences in anchorage binding sites at the base of the open tetramer, offering a structural mechanistic explanation for the change in conformation and decreased functional activity. Change to the open configuration was triggered by the combined stresses of acidic pH and F/T. The desired closed conformation was preserved in a potassium phosphate buffer (KP), minimizing pH drop upon freezing and including 10% sucrose to control F/T stress. Stability was further evaluated in thermal stress studies where changes in conformation were readily detected by ELISA and size exclusion chromatography (SEC). Both tests were suitable indicators of stability and antigenicity and considered potential critical quality attributes (pCQAs). To understand longer-term stability, the pCQA profiles from thermally stressed rNA at 6 months were modeled to predict stability of at least 24-months at 5°C storage. In summary, a desired rNA closed tetramer was maintained by formulation selection and monitoring of pCQAs to produce a stable rNA vaccine candidate. The study highlights the importance of understanding and controlling vaccine protein structural and functional integrity.
Collapse
Affiliation(s)
- Bing Li
- Sanofi Global Vaccine Drug Product Development, Toronto, ON, Canada
| | | | | | | | - Marin Ming
- Sanofi Analytical Sciences, Toronto, ON, Canada
| | - Karen Y. Y. Fung
- Sanofi Global Vaccine Drug Product Development, Toronto, ON, Canada
| | - Guadalupe Cortés
- Sanofi mRNA & Translational Medicine COVID Franchise, Global Clinical Development, Waltham, MA, USA
| | - D. Andrew James
- Sanofi External Research and Development, Toronto, ON, Canada
| | | | - Nausheen Rahman
- Sanofi Global Vaccine Drug Product Development, Toronto, ON, Canada
| | - Roger H. Brookes
- Sanofi Global Vaccine Drug Product Development, Toronto, ON, Canada
| | | |
Collapse
|
2
|
Feoktistova S, Sayganova M, Trutneva K, Glazova O, Blagodatski AS, Shevkova L, Navoikova A, Anisimov Y, Albert E, Mityaeva O, Volchkov P, Deviatkin A. Abundant Intra-Subtype Reassortment Revealed in H13N8 Influenza Viruses. Viruses 2024; 16:568. [PMID: 38675910 DOI: 10.3390/v16040568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/29/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
Influenza A viruses (IAVs) pose a serious threat to global health. On the one hand, these viruses cause seasonal flu outbreaks in humans. On the other hand, they are a zoonotic infection that has the potential to cause a pandemic. The most important natural reservoir of IAVs are waterfowl. In this study, we investigated the occurrence of IAV in birds in the Republic of Buryatia (region in Russia). In 2020, a total of 3018 fecal samples were collected from wild migratory birds near Lake Baikal. Of these samples, 11 were found to be positive for the H13N8 subtype and whole-genome sequencing was performed on them. All samples contained the same virus with the designation A/Unknown/Buryatia/Arangatui-1/2020. To our knowledge, virus A/Unknown/Buryatia/Arangatui-1/2020 is the first representative of the H13N8 subtype collected on the territory of Russia, the sequence of which is available in the GenBank database. An analysis of reassortments based on the genome sequences of other known viruses has shown that A/Unknown/Buryatia/Arangatui-1/2020 arose as a result of reassortment. In addition, a reassortment most likely occurred several decades ago between the ancestors of the viruses recently collected in China, the Netherlands, the United States and Chile. The presence of such reassortment emphasizes the ongoing evolution of the H13N8 viruses distributed in Europe, North and East Asia, North and South America and Australia. This study underscores the importance of the continued surveillance and research of less-studied influenza subtypes.
Collapse
Affiliation(s)
- Sofia Feoktistova
- Federal Research Center for Innovator and Emerging Biomedical and Pharmaceutical Technologies, 125315 Moscow, Russia
| | - Marya Sayganova
- Federal Research Center for Innovator and Emerging Biomedical and Pharmaceutical Technologies, 125315 Moscow, Russia
| | - Kseniya Trutneva
- Federal Research Center for Innovator and Emerging Biomedical and Pharmaceutical Technologies, 125315 Moscow, Russia
| | - Olga Glazova
- Federal Research Center for Innovator and Emerging Biomedical and Pharmaceutical Technologies, 125315 Moscow, Russia
| | - Artem S Blagodatski
- Federal State Budget Institution of Science Institute of Theoretical and Experimental Biophysics, 142290 Pushchino, Russia
| | - Liudmila Shevkova
- Federal Research Center for Innovator and Emerging Biomedical and Pharmaceutical Technologies, 125315 Moscow, Russia
| | - Anna Navoikova
- Federal Research Center for Innovator and Emerging Biomedical and Pharmaceutical Technologies, 125315 Moscow, Russia
| | - Yuriy Anisimov
- Baikalsky State Nature Biosphere Reserve, 671220 Tankhoi, Russia
| | - Eugene Albert
- Federal Research Center for Innovator and Emerging Biomedical and Pharmaceutical Technologies, 125315 Moscow, Russia
| | - Olga Mityaeva
- Federal Research Center for Innovator and Emerging Biomedical and Pharmaceutical Technologies, 125315 Moscow, Russia
- Department of Fundamental Medicine, Lomonosov Moscow State University, 119992 Moscow, Russia
| | - Pavel Volchkov
- Federal Research Center for Innovator and Emerging Biomedical and Pharmaceutical Technologies, 125315 Moscow, Russia
- Department of Fundamental Medicine, Lomonosov Moscow State University, 119992 Moscow, Russia
- The Moscow Clinical Scientific Center (MCSC) Named after A.S. Loginov, 111123 Moscow, Russia
| | - Andrey Deviatkin
- Federal Research Center for Innovator and Emerging Biomedical and Pharmaceutical Technologies, 125315 Moscow, Russia
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119992 Moscow, Russia
| |
Collapse
|
3
|
Matthys A, Saelens X. Promises and challenges of single-domain antibodies to control influenza. Antiviral Res 2024; 222:105807. [PMID: 38219914 DOI: 10.1016/j.antiviral.2024.105807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/05/2024] [Accepted: 01/09/2024] [Indexed: 01/16/2024]
Abstract
The World Health Organization advices the use of a quadrivalent vaccine as prophylaxis against influenza, to prevent severe influenza-associated disease and -mortality, and to keep up with influenza antigenic diversity. Different small molecule antivirals to treat influenza have become available. However, emergence of drug resistant influenza viruses has been observed upon use of these antivirals. An appealing alternative approach to prevent or treat influenza is the use of antibody-based antivirals, such as conventional monoclonal antibodies and single-domain antibodies (sdAbs). The surface of the influenza A and B virion is decorated with hemagglutinin molecules, which act as receptor-binding and membrane fusion proteins and represent the main target of neutralizing antibodies. SdAbs that target influenza A and B hemagglutinin have been described. In addition, sdAbs directed against the influenza A virus neuraminidase have been reported, whereas no sdAbs targeting influenza B neuraminidase have been described to date. SdAbs directed against influenza A matrix protein 2 or its ectodomain have been reported, while no sdAbs have been described targeting the influenza B matrix protein 2. Known for their high specificity, ease of production and formatting, sdAb-based antivirals could be a major leap forward in influenza control.
Collapse
Affiliation(s)
- Arne Matthys
- VIB Center for Medical Biotechnology, VIB, Ghent, Belgium; Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium
| | - Xavier Saelens
- VIB Center for Medical Biotechnology, VIB, Ghent, Belgium; Department of Biochemistry and Microbiology, Ghent University, Ghent, Belgium.
| |
Collapse
|
4
|
Cunliffe RF, Stirling DC, Razzano I, Murugaiah V, Montomoli E, Kim S, Wane M, Horton H, Caproni LJ, Tregoning JS. Optimizing a linear 'Doggybone' DNA vaccine for influenza virus through the incorporation of DNA targeting sequences and neuraminidase antigen. Discov Immunol 2024; 3:kyad030. [PMID: 38567290 PMCID: PMC10917164 DOI: 10.1093/discim/kyad030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/08/2023] [Accepted: 01/02/2024] [Indexed: 04/04/2024]
Abstract
Influenza virus represents a challenge for traditional vaccine approaches due to its seasonal changes and potential for zoonotic transmission. Nucleic acid vaccines can overcome some of these challenges, especially through the inclusion of multiple antigens to increase the breadth of response. RNA vaccines were an important part of the response to the COVID-19 pandemic, but for future outbreaks DNA vaccines may have some advantages in terms of stability and manufacturing cost that warrant continuing investigation to fully realize their potential. Here, we investigate influenza virus vaccines made using a closed linear DNA platform, Doggybone™ DNA (dbDNA), produced by a rapid and scalable cell-free method. Influenza vaccines have mostly focussed on Haemagglutinin (HA), but the inclusion of Neuraminidase (NA) may provide additional protection. Here, we explored the potential of including NA in a dbDNA vaccine, looking at DNA optimization, mechanism and breadth of protection. We showed that DNA targeting sequences (DTS) improved immune responses against HA but not NA. We explored whether NA vaccine-induced protection against influenza virus infection was cell-mediated, but depletion of CD8 and NK cells made no impact, suggesting it was antibody-mediated. This is reflected in the restriction of protection to homologous strains of influenza virus. Importantly, we saw that including both HA and NA in a single combined vaccine did not dampen the immune response to either one. Overall, we show that linear dbDNA can induce an immune response against NA, which may offer increased protection in instances of HA mismatch where NA remains more conserved.
Collapse
Affiliation(s)
- Robert F Cunliffe
- Department of Infectious Disease, Imperial College London, London W2 1PG, UK
| | - David C Stirling
- Department of Infectious Disease, Imperial College London, London W2 1PG, UK
| | - Ilaria Razzano
- Department of Life Sciences, University of Siena, 53100 Siena, Italy
- VisMederi srl, Siena, 53100, Italia
| | | | - Emanuele Montomoli
- VisMederi srl, Siena, 53100, Italia
- Department of Molecular and Developmental Medicine, University of Siena, 53100 Siena, Italy
| | - Sungwon Kim
- Touchlight Genetics Ltd, Hampton, TW12 2ER, UK
| | - Madina Wane
- Touchlight Genetics Ltd, Hampton, TW12 2ER, UK
| | | | | | - John S Tregoning
- Department of Infectious Disease, Imperial College London, London W2 1PG, UK
| |
Collapse
|
5
|
Kang H, Malik T, Daniels R. Isolation by multistep chromatography improves the consistency of secreted recombinant influenza neuraminidase antigens. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1232:123975. [PMID: 38141291 DOI: 10.1016/j.jchromb.2023.123975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/14/2023] [Accepted: 12/16/2023] [Indexed: 12/25/2023]
Abstract
Recombinant protein-based approaches are ideally suited for producing vaccine antigens that are not overly abundant in viruses, such as influenza neuraminidase (NA). However, obtaining sufficient quantities of recombinant viral surface antigens remains challenging, often resulting in the use of chimeric proteins with affinity tags that can invariably impact the antigen's properties. Here, we developed multistep chromatography approaches for purifying secreted recombinant NA (rNA) antigens that are derived from recent H1N1 and H3N2 viruses and produced using insect cells. Analytical analyses showed that these isolation procedures yielded homogenous tetrameric rNA preparations with consistent specific activities that were not possible from a common immobilized metal affinity chromatography purification procedure. The use of classical chromatography improved the rNA tetramer homogeneity by removing the requirement of the N-terminal poly-histidine affinity tag that was shown to promote higher order rNA oligomer formation. In addition, these procedures reduced the specific activity variation by eliminating the exposure to Ni2+ ions and imidazole, with the latter showing pH and NA subtype dependent effects. Together, these results demonstrate that purification by multistep chromatography improves the homogeneity of secreted rNAs and eliminates the need for affinity tag-based approaches that can potentially alter the properties of these recombinant antigens.
Collapse
Affiliation(s)
- Hyeog Kang
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Tahir Malik
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Robert Daniels
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA.
| |
Collapse
|
6
|
Zhang X, Ross TM. Anti-neuraminidase immunity in the combat against influenza. Expert Rev Vaccines 2024; 23:474-484. [PMID: 38632930 DOI: 10.1080/14760584.2024.2343689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 04/12/2024] [Indexed: 04/19/2024]
Abstract
INTRODUCTION Anti-neuraminidase (NA) immunity correlates with the protection against influenza virus infection in both human and animal models. The aim of this review is to better understand the mechanism of anti-NA immunity, and also to evaluate the approaches on developing NA-based influenza vaccines or enhancing immune responses against NA for current influenza vaccines. AREAS COVERED In this review, the structure of influenza neuraminidase, the contribution of anti-NA immunity to protection, as well as the efforts and challenges of targeting the immune responses to NA were discussed. We also listed some of the newly discovered anti-NA monoclonal antibodies and discussed their contribution in therapeutic as well as the antigen design of a broadly protective NA vaccine. EXPERT OPINION Targeting the immune response to both HA and NA may be critical for achieving the optimal protection since there are different mechanisms of HA and NA elicited protective immunity. Monoclonal antibodies (mAbs) that target the conserved protective lateral face or catalytic sites are effective therapeutics. The epitope discovery using monoclonal antibodies may benefit NA-based vaccine elicited broadly reactive antibody responses. Therefore, the potential for a vaccine that elicits cross-reactive antibodies against neuraminidase is a high priority for next-generation influenza vaccines.
Collapse
Affiliation(s)
- Xiaojian Zhang
- Center for Vaccines and Immunology, University of Georgia, Athens, GA, USA
| | - Ted M Ross
- Center for Vaccines and Immunology, University of Georgia, Athens, GA, USA
- Department of Infectious Diseases, University of Georgia, Athens, GA, USA
- Cleveland Clinic, Florida Research and Innovation Center, Port Saint Lucie, FL, USA
- Department of Infection Biology, Lehner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| |
Collapse
|
7
|
Sun X, Ma H, Wang X, Bao Z, Tang S, Yi C, Sun B. Broadly neutralizing antibodies to combat influenza virus infection. Antiviral Res 2024; 221:105785. [PMID: 38145757 DOI: 10.1016/j.antiviral.2023.105785] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/17/2023] [Accepted: 12/19/2023] [Indexed: 12/27/2023]
Abstract
The diversified classification and continuous alteration of influenza viruses underscore for antivirals and vaccines that can counter a broad range of influenza subtypes. Hemagglutinin (HA) and neuraminidase (NA) are two principle viral surface targets for broadly neutralizing antibodies. A series of monoclonal antibodies, targeting HA and NA, have been discovered and characterized with a wide range of neutralizing activity against influenza viruses. Clinical studies have demonstrated the safety and efficacy of some HA stem-targeting antibodies against influenza viruses. Broadly neutralizing antibodies (bnAbs) can serve as both prophylactic and therapeutic agents, as well as play a critical role in identifying antigens and epitopes for the development of universal vaccines. In this review, we described and summarized the latest discoveries and advancements of bnAbs against influenza viruses in both pre- and clinical development. Additionally, we assess whether bnAbs can serve as a viable alternative to vaccination against influenza. Finally, we discussed the rationale behind reverse vaccinology, a structure-guided universal vaccine design strategy that efficiently identifies candidate antigens and conserved epitopes that can be targeted by antibodies.
Collapse
Affiliation(s)
- Xiaoyu Sun
- Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
| | - Hanwen Ma
- Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Xuanjia Wang
- Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Zhiheng Bao
- Shanghai Institute of Infectious Disease and Biosecurity, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Shubing Tang
- Department of Investigational New Drug, Shanghai Reinovax Biologics Co., Ltd, Shanghai, 200135, China
| | - Chunyan Yi
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Bing Sun
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China; School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China.
| |
Collapse
|
8
|
Cao F, Liu XM, Wang X, Zhang YH, Yang J, Li W, Luo DQ, Liu YF. Structural diversity and biological activities of indole-diterpenoids from Penicillium janthinellum by co-culture with Paecilomyces formosus. Bioorg Chem 2023; 141:106863. [PMID: 37722269 DOI: 10.1016/j.bioorg.2023.106863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/01/2023] [Accepted: 09/11/2023] [Indexed: 09/20/2023]
Abstract
Co-culturing the marine-derived fungi Penicillium janthinellium with Paecilomyces formosus led to the isolation of nine new indole-diterpenes, janthinellumines A-I (1-9), along with twelve known analogues (10-21). The chemical structures including their absolute configurations of them were assigned by the analysis of extensive spectroscopic data and calculated ECD and VCD methods. These indole-diterpenoids displayed extensive biological activities, including anti-influenza A virus, protein tyrosine phosphatase (PTP) inhibitory, and anti-Vibrio activities. Among them, the anti-influenza mechanism of compounds 1, 2, and 7 was further investigated using neuraminidase inhibitory assay, molecular docking, and reverse genetics methods, suggesting that 1, 2, and 7 could interact with Arg371 of the viral neuraminidase. The structure-activity relationship (SAR) of PTPs inhibitory activity for indole-diterpene derivatives (1, 2, 4, 5, 9-16, and 19-21) was also summarized.
Collapse
Affiliation(s)
- Fei Cao
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnostics of Education Ministry of China, Hebei University, Baoding 071002, China.
| | - Xue-Meng Liu
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnostics of Education Ministry of China, Hebei University, Baoding 071002, China
| | - Xu Wang
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnostics of Education Ministry of China, Hebei University, Baoding 071002, China
| | - Ya-Hui Zhang
- College of Life Sciences, State Key Laboratory of New Pharmaceutical Preparations and Excipients, Hebei University, Baoding 071002, China
| | - Jie Yang
- Huanghua Branch of Beijing Computing Center Co., Ltd, Cangzhou 061108, China
| | - Wan Li
- College of Pharmaceutical Sciences, Key Laboratory of Pharmaceutical Quality Control of Hebei Province, Key Laboratory of Medicinal Chemistry and Molecular Diagnostics of Education Ministry of China, Hebei University, Baoding 071002, China
| | - Du-Qiang Luo
- College of Life Sciences, State Key Laboratory of New Pharmaceutical Preparations and Excipients, Hebei University, Baoding 071002, China.
| | - Yun-Feng Liu
- College of Life Sciences, State Key Laboratory of New Pharmaceutical Preparations and Excipients, Hebei University, Baoding 071002, China; College of Horticulture, Hebei Agricultural University, Baoding, Hebei 071001, China.
| |
Collapse
|
9
|
Sergeeva MV, Romanovskaya-Romanko EA, Krivitskaya VZ, Kudar PA, Petkova NN, Kudria KS, Lioznov DA, Stukova MA, Desheva YA. Longitudinal Analysis of Neuraminidase and Hemagglutinin Antibodies to Influenza A Viruses after Immunization with Seasonal Inactivated Influenza Vaccines. Vaccines (Basel) 2023; 11:1731. [PMID: 38006063 PMCID: PMC10675551 DOI: 10.3390/vaccines11111731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/06/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
Neuraminidase (NA)-based immunity could reduce the harmful impact of novel antigenic variants of influenza viruses. The detection of neuraminidase-inhibiting (NI) antibodies in parallel with anti-hemagglutinin (HA) antibodies may enhance research on the immunogenicity and duration of antibody responses to influenza vaccines. To assess anti-NA antibodies after vaccination with seasonal inactivated influenza vaccines, we used the enzyme-linked lectin assay, and anti-HA antibodies were detected in the hemagglutination inhibition assay. The dynamics of the anti-NA antibody response differed depending on the virus subtype: antibodies to A/H3N2 virus neuraminidase increased later than antibodies to A/H1N1pdm09 subtype neuraminidase and persisted longer. In contrast to HA antibodies, the fold increase in antibody titers to NA after vaccination poorly depended on the preexisting level. At the same time, NA antibody levels after vaccination directly correlated with titers before vaccination. A difference was found in response to NA antigen between split and subunit-adjuvanted vaccines and in NA functional activity in the vaccine formulations.
Collapse
Affiliation(s)
- Mariia V. Sergeeva
- Smorodintsev Research Institute of Influenza, Ministry of Health of the Russian Federation, 197022 Saint Petersburg, Russia; (M.V.S.); (E.A.R.-R.); (V.Z.K.); (K.S.K.); (D.A.L.); (M.A.S.)
| | - Ekaterina A. Romanovskaya-Romanko
- Smorodintsev Research Institute of Influenza, Ministry of Health of the Russian Federation, 197022 Saint Petersburg, Russia; (M.V.S.); (E.A.R.-R.); (V.Z.K.); (K.S.K.); (D.A.L.); (M.A.S.)
| | - Vera Z. Krivitskaya
- Smorodintsev Research Institute of Influenza, Ministry of Health of the Russian Federation, 197022 Saint Petersburg, Russia; (M.V.S.); (E.A.R.-R.); (V.Z.K.); (K.S.K.); (D.A.L.); (M.A.S.)
| | - Polina A. Kudar
- ‘Institute of Experimental Medicine’, 197022 Saint Petersburg, Russia; (P.A.K.); (N.N.P.)
| | - Nadezhda N. Petkova
- ‘Institute of Experimental Medicine’, 197022 Saint Petersburg, Russia; (P.A.K.); (N.N.P.)
| | - Kira S. Kudria
- Smorodintsev Research Institute of Influenza, Ministry of Health of the Russian Federation, 197022 Saint Petersburg, Russia; (M.V.S.); (E.A.R.-R.); (V.Z.K.); (K.S.K.); (D.A.L.); (M.A.S.)
| | - Dmitry A. Lioznov
- Smorodintsev Research Institute of Influenza, Ministry of Health of the Russian Federation, 197022 Saint Petersburg, Russia; (M.V.S.); (E.A.R.-R.); (V.Z.K.); (K.S.K.); (D.A.L.); (M.A.S.)
| | - Marina A. Stukova
- Smorodintsev Research Institute of Influenza, Ministry of Health of the Russian Federation, 197022 Saint Petersburg, Russia; (M.V.S.); (E.A.R.-R.); (V.Z.K.); (K.S.K.); (D.A.L.); (M.A.S.)
| | - Yulia A. Desheva
- ‘Institute of Experimental Medicine’, 197022 Saint Petersburg, Russia; (P.A.K.); (N.N.P.)
| |
Collapse
|
10
|
SODA K, MEKATA H, USUI T, ITO H, MATSUI Y, YAMADA K, YAMAGUCHI T, ITO T. Genetic and antigenic analyses of H5N8 and H5N1 subtypes high pathogenicity avian influenza viruses isolated from wild birds and poultry farms in Japan in the winter of 2021-2022. J Vet Med Sci 2023; 85:1180-1189. [PMID: 37766550 PMCID: PMC10686771 DOI: 10.1292/jvms.23-0121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023] Open
Abstract
In the winter of 2021-2022, multiple subtypes (H5N8 and H5N1) of high pathogenicity avian influenza viruses (HPAIVs) were confirmed to be circulating simultaneously in Japan. Here, we phylogenetically and antigenically analyzed HPAIVs that were isolated from infected wild birds, an epidemiological investigation of affected poultry farms, and our own active surveillance study. H5 subtype hemagglutinin (HA) genes of 32 representative HPAIV isolates were classified into clade 2.3.4.4b lineage and subsequently divided into three groups (G2a, G2b, and G2d). All H5N8 HPAIVs were isolated in early winter and had HA genes belonging to the G2a group. H5N1 HPAIVs belong to the G2b and G2d groups. Although G2b viruses were widespread throughout the season, G2d viruses endemically circulated in Northeast Japan after January 2022. Deep sequence analysis showed that the four HPAIVs isolated at the beginning of winter had both N8 and N1 subtypes of neuraminidase genes. Environmental water-derived G2a HPAIV, A/water/Tottori/NK1201-2/2021 (H5N8), has unique polymerase basic protein 1 and nucleoprotein genes, similar to those of low pathogenicity avian influenza viruses (LPAIVs). These results indicate that multiple H5 HPAIVs and LPAIVs disseminated to Japan via transboundary winter migration of wild birds, and HPAIVs with novel gene constellations could emerge in these populations. Cross-neutralization test revealed that G2a H5N8 HPAIVs were antigenically distinct from a G2b H5N1 HPAIV, suggesting that antibody pressure in wild birds was involved in the transition of the HPAIV groups during the season.
Collapse
Affiliation(s)
- Kosuke SODA
- Avian Zoonosis Research Center, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Hirohisa MEKATA
- Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan
| | - Tatsufumi USUI
- Avian Zoonosis Research Center, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Hiroshi ITO
- Avian Zoonosis Research Center, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Yuto MATSUI
- Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan
| | - Kentaro YAMADA
- Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki, Japan
| | - Tsuyoshi YAMAGUCHI
- Avian Zoonosis Research Center, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Toshihiro ITO
- Avian Zoonosis Research Center, Faculty of Agriculture, Tottori University, Tottori, Japan
| |
Collapse
|
11
|
Huang X, Cai Y, Yin G, Chen Z, Hu J, Gao Z, Guo X, Xiong F, Feng X. Identification of catalytically active domain epitopes in neuraminidase protein of H9N2 subtype of avian influenza virus. Avian Pathol 2023; 52:377-387. [PMID: 37581283 DOI: 10.1080/03079457.2023.2239191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/20/2023] [Accepted: 07/17/2023] [Indexed: 08/16/2023]
Abstract
H9N2 subtype of avian influenza virus (AIV) is primarily a bird virus, which is widespread in clinical avian disease, and reported in cases of human infection. As one of the surface proteins of AIV, the neuraminidase (NA) protein plays an important role mainly in viral budding. However, vaccine development and detection methods for NA of H9N2 AIVs are in urgent clinical need. In this study, a truncated NA gene (205-900 bp) was cloned from the NA sequence of H9N2 strain, and then expressed using pET-28a (+) vector. This purified recombinant NA protein was used to immunize BALB/c mice, and the monoclonal antibodies were screened through the indirect enzyme-linked immunosorbent assay (ELISA). Next, eight prokaryotic expression vectors were constructed for epitope identification. After cell fusion, three hybridoma cell lines producing the antibodies special to NA protein were screened by ELISA, western blotting, and indirect immunofluorescence; these were named 1B10, 2B6, and 5B2, respectively. Epitope scanning techniques were used to identify three B-cell epitopes recognized by these three monoclonal antibodies, 196KNATASIIYDGMLVD210, 210DSIGSWSKNIL220 and 221RTQESECVCI230. The subsequent homology analysis revealed the three epitopes were highly conserved in H9N2 AIV strains. The structural predictions of the antigenic epitopes indicated that all three epitopes were located in the catalytic region of NA. These results provide a basis for studying the function of the NA protein of H9N2 AIV and technical support for the development of a universal detection method based on anti-NA monoclonal antibodies.
Collapse
Affiliation(s)
- Xiangyu Huang
- Key Laboratory of Animal Microbiology of China's Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Yiqin Cai
- Key Laboratory of Animal Microbiology of China's Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Guihu Yin
- Key Laboratory of Animal Microbiology of China's Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Zili Chen
- Agricultural Comprehensive Law Enforcement Brigade of Rudong, Rudong Agriculture and Rural Affairs Bureau, Rudong, People's Republic of China
| | - Jianing Hu
- Key Laboratory of Animal Microbiology of China's Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Zichen Gao
- Key Laboratory of Animal Microbiology of China's Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Xinyu Guo
- Key Laboratory of Animal Microbiology of China's Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Fuqiang Xiong
- Key Laboratory of Animal Microbiology of China's Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
| | - Xiuli Feng
- Key Laboratory of Animal Microbiology of China's Ministry of Agriculture, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, People's Republic of China
| |
Collapse
|
12
|
Xu S, Yu L, Teng Q, Li X, Jin Z, Qu Y, Li J, Zhang Q, Li Z, Zhao K. Enhance immune response to H9 AIV DNA vaccine based on polygene expression and DGL nanoparticle encapsulation. Poult Sci 2023; 102:102925. [PMID: 37542938 PMCID: PMC10428121 DOI: 10.1016/j.psj.2023.102925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 06/29/2023] [Accepted: 07/02/2023] [Indexed: 08/07/2023] Open
Abstract
DNA vaccination has great potential to treat or prevent avian influenza pandemics, but the technique may be limited by low immunogenicity and gene delivery in clinical testing. Here, to improve the immune efficacy of DNA vaccines against avian influenza, we prepared and tested the immunogenicity of 4 recombinant DNA vaccines containing 2 or 3 AIV antigens. The results revealed that chickens and mice immunized with plasmid DNA containing 3 antigens (HA gene from H9N2, and NA and HA genes from H5N1) exhibited a robust immune response than chickens and mice immunized with plasmid DNAs containing 2 antigenic genes. Subsequently, this study used pβH9N1SH5 as a model antigen to study the effect of dendritic polylysine (DGL) nanoparticles as a gene delivery system and adjuvant on antigen-specific immunity in mice models. At a ratio of 1:3 DGL/pβH9N1SH5 (w/w), the pβH9N1SH5/DGL NPs showed excellent physical and chemical properties, induced higher levels of HI antibodies, and larger CD3+/CD4+ T lymphocyte and CD3+/CD8+ T lymphocyte population, as well as the production of cytokines, namely, interferon (IFN)-γ, interleukin (IL)-2 compared with the naked pβH9N1SH5. Therefore, multiantigen gene expression methods using DGL as a delivery system may have broad application prospects in gene therapy.
Collapse
Affiliation(s)
- Shangen Xu
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Institute of Nanobiomaterials and Immunology, School of Life Sciences, Taizhou University, Taizhou 318000, China
| | - Lu Yu
- Department of Avian Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Qiaoyang Teng
- Department of Avian Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Xuesong Li
- Department of Avian Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China
| | - Zheng Jin
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Institute of Nanobiomaterials and Immunology, School of Life Sciences, Taizhou University, Taizhou 318000, China
| | - Yang Qu
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Institute of Nanobiomaterials and Immunology, School of Life Sciences, Taizhou University, Taizhou 318000, China
| | - Jiawei Li
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Institute of Nanobiomaterials and Immunology, School of Life Sciences, Taizhou University, Taizhou 318000, China
| | - Qihong Zhang
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Institute of Nanobiomaterials and Immunology, School of Life Sciences, Taizhou University, Taizhou 318000, China
| | - Zejun Li
- Department of Avian Infectious Disease, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China.
| | - Kai Zhao
- Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, Institute of Nanobiomaterials and Immunology, School of Life Sciences, Taizhou University, Taizhou 318000, China.
| |
Collapse
|
13
|
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] [What about the content of this article? (0)] [Affiliation(s)] [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.
Collapse
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.
| |
Collapse
|
14
|
Piepenbrink M, Oladunni F, Nogales A, Khalil AM, Fitzgerald T, Basu M, Fucile C, Topham DJ, Rosenberg AF, Martinez-Sobrido L, Kobie JJ. Highly Cross-Reactive and Protective Influenza A Virus H3N2 Hemagglutinin- and Neuraminidase-Specific Human Monoclonal Antibodies. Microbiol Spectr 2023; 11:e0472822. [PMID: 37318331 PMCID: PMC10433997 DOI: 10.1128/spectrum.04728-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 05/29/2023] [Indexed: 06/16/2023] Open
Abstract
Due to antigenic drift and shift of influenza A viruses (IAV) and the tendency to elicit predominantly strain-specific antibodies, humanity remains susceptible to new strains of seasonal IAV and is at risk from viruses with pandemic potential for which limited or no immunity may exist. The genetic drift of H3N2 IAV is specifically pronounced, resulting in two distinct clades since 2014. Here, we demonstrate that immunization with a seasonal inactivated influenza vaccine (IIV) results in increased levels of H3N2 IAV-specific serum antibodies against hemagglutinin (HA) and neuraminidase (NA). Detailed analysis of the H3N2 B cell response indicated expansion of H3N2-specific peripheral blood plasmablasts 7 days after IIV immunization which expressed monoclonal antibodies (MAbs) with broad and potent antiviral activity against many H3N2 IAV strains as well as prophylactic and therapeutic activity in mice. These H3N2-specific B cell clonal lineages persisted in CD138+ long-lived bone marrow plasma cells. These results demonstrate that IIV-induced H3N2 human MAbs can protect and treat influenza virus infection in vivo and suggest that IIV can induce a subset of IAV H3N2-specific B cells with broad protective potential, a feature that warrants further study for universal influenza vaccine development. IMPORTANCE Influenza A virus (IAV) infections continue to cause substantial morbidity and mortality despite the availability of seasonal vaccines. The extensive genetic variability in seasonal and potentially pandemic influenza strains necessitates new vaccine strategies that can induce universal protection by focusing the immune response on generating protective antibodies against conserved targets within the influenza virus hemagglutinin and neuraminidase proteins. We have demonstrated that seasonal immunization with inactivated influenza vaccine (IIV) stimulates H3N2-specific monoclonal antibodies in humans that are broad and potent in their neutralization of virus in vitro. These antibodies also provide protection from H3N2 IAV in a mouse model of infection. Furthermore, they persist in the bone marrow, where they are expressed by long-lived antibody-producing plasma cells. This significantly demonstrates that seasonal IIV can induce a subset of H3N2-specific B cells with broad protective potential, a process that if further studied and enhanced could aid in the development of a universal influenza vaccine.
Collapse
Affiliation(s)
- Michael Piepenbrink
- Heersink School of Medicine, Infectious Diseases, University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Medicine, Infectious Diseases Division, University of Rochester, Rochester, New York, USA
| | - Fatai Oladunni
- Texas Biomedical Research Institute, San Antonio, Texas, USA
- Department of Microbiology and Immunology, University of Rochester Medical Center, School of Medicine and Dentistry, Rochester, New York, USA
| | - Aitor Nogales
- Department of Microbiology and Immunology, University of Rochester Medical Center, School of Medicine and Dentistry, Rochester, New York, USA
| | - Ahmed M. Khalil
- Texas Biomedical Research Institute, San Antonio, Texas, USA
- Department of Zoonotic Diseases, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Theresa Fitzgerald
- Department of Microbiology and Immunology, University of Rochester Medical Center, School of Medicine and Dentistry, Rochester, New York, USA
| | - Madhubanti Basu
- Heersink School of Medicine, Infectious Diseases, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Christopher Fucile
- Heersink School of Medicine, Informatics Institute, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - David J. Topham
- Department of Microbiology and Immunology, University of Rochester Medical Center, School of Medicine and Dentistry, Rochester, New York, USA
| | - Alexander F. Rosenberg
- Heersink School of Medicine, Informatics Institute, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Luis Martinez-Sobrido
- Texas Biomedical Research Institute, San Antonio, Texas, USA
- Department of Microbiology and Immunology, University of Rochester Medical Center, School of Medicine and Dentistry, Rochester, New York, USA
| | - James J. Kobie
- Heersink School of Medicine, Infectious Diseases, University of Alabama at Birmingham, Birmingham, Alabama, USA
- Department of Medicine, Infectious Diseases Division, University of Rochester, Rochester, New York, USA
| |
Collapse
|
15
|
Martinez MR, Gao J, Wan H, Kang H, Klenow L, Daniels R. Inactivated influenza virions are a flexible vaccine platform for eliciting protective antibody responses against neuraminidase. Vaccine 2023:S0264-410X(23)00629-1. [PMID: 37301705 DOI: 10.1016/j.vaccine.2023.05.068] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/23/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023]
Abstract
Most seasonal influenza vaccines are produced using hemagglutinin (HA) surface antigens from inactivated virions. However, virions are thought to be a suboptimal source for the less abundant neuraminidase (NA) surface antigen, which is also protective against severe disease. Here, we demonstrate that inactivated influenza virions are compatible with two modern approaches for improving protective antibody responses against NA. Using a DBA/2J mouse model, we show that the strong infection-induced NA inhibitory (NAI) antibody responses are only achieved by high dose immunizations of inactivated virions, likely due to the low viral NA content. Based on this observation, we first produced virions with higher NA content by using reverse genetics to exchange the viral internal gene segments. Single immunizations with these inactivated virions showed enhanced NAI antibody responses and improved NA-based protection from a lethal viral challenge while also allowing for the development of natural immunity to the heterotypic challenge virus HA. Second, we combined inactivated virions with recombinant NA protein antigens. These combination vaccines increased NA-based protection following viral challenge and elicited stronger antibody responses against NA than either component alone, especially when the NAs possessed similar antigenicity. Together, these results indicate that inactivated virions are a flexible platform that can be easily combined with protein-based vaccines to improve protective antibody responses against influenza antigens.
Collapse
Affiliation(s)
- Mira Rakic Martinez
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Jin Gao
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Hongquan Wan
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Hyeog Kang
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Laura Klenow
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Robert Daniels
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA.
| |
Collapse
|
16
|
Plotkin SA. Recent updates on correlates of vaccine-induced protection. Front Immunol 2023; 13:1081107. [PMID: 36776392 PMCID: PMC9912984 DOI: 10.3389/fimmu.2022.1081107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 12/02/2022] [Indexed: 02/14/2023] Open
Abstract
Correlates of protection are key for vaccine development against any pathogen. In this paper we summarize recent information about correlates for vaccines against dengue, Ebola, influenza, pneumococcal, respiratory syncytial virus, rotavirus, shigella, tuberculosis and Zika virus.
Collapse
Affiliation(s)
- Stanley A. Plotkin
- University of Pennsylvania, Philadelphia, PA, United States,Consultant, Doylestown, PA, United States,*Correspondence: Stanley A. Plotkin,
| |
Collapse
|
17
|
Nagashima K, Abbadi N, Vyas V, Roegner A, Ross TM, Mousa JJ. Adjuvant-Mediated Differences in Antibody Responses to Computationally Optimized Hemagglutinin and Neuraminidase Vaccines. Viruses 2023; 15:v15020347. [PMID: 36851561 PMCID: PMC9960755 DOI: 10.3390/v15020347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/20/2023] [Accepted: 01/20/2023] [Indexed: 01/27/2023] Open
Abstract
Computationally optimized broadly reactive antigens (COBRAs) are a next-generation universal influenza vaccine candidate. However, how these COBRAs induce antibody responses when combined with different adjuvants has not previously been well-characterized. Therefore, we performed in vivo studies with an HA-based H1 COBRA, Y2, and an NA-based N1 COBRA, N1-I, to assess this effect for the H1N1 subtype. We tested the adjuvants AddaVax, AddaS03, CpG, and Alhydrogel. AddaS03 performed the best, eliciting high IgG titers and hemagglutination inhibition (HAI) activity for Y2 immunizations. Interestingly, serum antibody epitopes were relatively similar across adjuvant groups. Moreover, following N1-I immunization with these adjuvants, AddaS03 also elicited the highest IgG and neuraminidase inhibition (NAI) titers against the 2009 pandemic virus, A/California/07/2009 (A/CA/09). These results inform adjuvant selection efforts for H1 and N1 COBRA HA and NA antigens in a mouse model.
Collapse
Affiliation(s)
- Kaito Nagashima
- Center for Vaccines and Immunology, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
| | - Nada Abbadi
- Center for Vaccines and Immunology, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
| | - Ved Vyas
- Center for Vaccines and Immunology, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
| | - Abigail Roegner
- Center for Vaccines and Immunology, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
| | - Ted M. Ross
- Center for Vaccines and Immunology, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
- Florida Research and Innovation Center, Cleveland Clinic, Port Saint Lucie, FL 34987, USA
- Department of Infection Biology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Jarrod J. Mousa
- Center for Vaccines and Immunology, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA
- Department of Biochemistry and Molecular Biology, Franklin College of Arts and Sciences, University of Georgia, Athens, GA 30602, USA
- Correspondence:
| |
Collapse
|
18
|
Ng TA, Rashid S, Kwoh CK. Virulence network of interacting domains of influenza a and mouse proteins. Front Bioinform 2023; 3:1123993. [PMID: 36875146 PMCID: PMC9982101 DOI: 10.3389/fbinf.2023.1123993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 02/03/2023] [Indexed: 02/19/2023] Open
Abstract
There exist several databases that provide virus-host protein interactions. While most provide curated records of interacting virus-host protein pairs, information on the strain-specific virulence factors or protein domains involved, is lacking. Some databases offer incomplete coverage of influenza strains because of the need to sift through vast amounts of literature (including those of major viruses including HIV and Dengue, besides others). None have offered complete, strain specific protein-protein interaction records for the influenza A group of viruses. In this paper, we present a comprehensive network of predicted domain-domain interaction(s) (DDI) between influenza A virus (IAV) and mouse host proteins, that will allow the systematic study of disease factors by taking the virulence information (lethal dose) into account. From a previously published dataset of lethal dose studies of IAV infection in mice, we constructed an interacting domain network of mouse and viral protein domains as nodes with weighted edges. The edges were scored with the Domain Interaction Statistical Potential (DISPOT) to indicate putative DDI. The virulence network can be easily navigated via a web browser, with the associated virulence information (LD50 values) prominently displayed. The network will aid influenza A disease modeling by providing strain-specific virulence levels with interacting protein domains. It can possibly contribute to computational methods for uncovering influenza infection mechanisms mediated through protein domain interactions between viral and host proteins. It is available at https://iav-ppi.onrender.com/home.
Collapse
Affiliation(s)
- Teng Ann Ng
- School of Computer Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Shamima Rashid
- School of Computer Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Chee Keong Kwoh
- School of Computer Science and Engineering, Nanyang Technological University, Singapore, Singapore
| |
Collapse
|
19
|
Tripp RA. Understanding immunity to influenza: implications for future vaccine development. Expert Rev Vaccines 2023; 22:871-875. [PMID: 37794732 DOI: 10.1080/14760584.2023.2266033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 09/28/2023] [Indexed: 10/06/2023]
Abstract
INTRODUCTION Influenza virus changes its genotype through antigenic drift or shift making it difficult to develop immunity to infection or vaccination. Zoonotic influenza A virus (IAV) strains can become established in humans. Several impediments to human infection and transmission include sialic acid expression, host anti-viral factors (including interferons), and other elements that govern viral replication. Controlling influenza infection, replication, and transmission is important because IAVs cause annual epidemics and occasional pandemics. Effective seasonal influenza vaccines exist, but these vaccines do not fully protect against novel or pandemic strains. AREAS COVERED With new vaccine production technology, vaccines can be produced rapidly. Universal IAV vaccines are being developed to protect against seasonal, novel, and zoonotic IAVs. These efforts are being enhanced and accelerated by a better understanding the host immune response to influenza viruses. EXPERT OPINION This review discusses several implications for future influenza vaccine development. Host immune responses to influenza virus infection or vaccination can guide vaccine development as anti-influenza immunity is affected by responses influenced by the previous immune history including first and subsequent exposures to influenza virus infections and vaccinations.
Collapse
Affiliation(s)
- Ralph A Tripp
- College of Veterinary Medicine, Department of Infectious Diseases, University of Georgia, Athens, GA, USA
| |
Collapse
|
20
|
Casalino L, Seitz C, Lederhofer J, Tsybovsky Y, Wilson IA, Kanekiyo M, Amaro RE. Breathing and Tilting: Mesoscale Simulations Illuminate Influenza Glycoprotein Vulnerabilities. ACS Cent Sci 2022; 8:1646-1663. [PMID: 36589893 PMCID: PMC9801513 DOI: 10.1021/acscentsci.2c00981] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Indexed: 05/28/2023]
Abstract
Influenza virus has resurfaced recently from inactivity during the early stages of the COVID-19 pandemic, raising serious concerns about the nature and magnitude of future epidemics. The main antigenic targets of influenza virus are two surface glycoproteins, hemagglutinin (HA) and neuraminidase (NA). Whereas the structural and dynamical properties of both glycoproteins have been studied previously, the understanding of their plasticity in the whole-virion context is fragmented. Here, we investigate the dynamics of influenza glycoproteins in a crowded protein environment through mesoscale all-atom molecular dynamics simulations of two evolutionary-linked glycosylated influenza A whole-virion models. Our simulations reveal and kinetically characterize three main molecular motions of influenza glycoproteins: NA head tilting, HA ectodomain tilting, and HA head breathing. The flexibility of HA and NA highlights antigenically relevant conformational states, as well as facilitates the characterization of a novel monoclonal antibody, derived from convalescent human donor, that binds to the underside of the NA head. Our work provides previously unappreciated views on the dynamics of HA and NA, advancing the understanding of their interplay and suggesting possible strategies for the design of future vaccines and antivirals against influenza.
Collapse
Affiliation(s)
- Lorenzo Casalino
- Department
of Chemistry and Biochemistry, University
of California San Diego, La Jolla, California92093, United States
| | - Christian Seitz
- Department
of Chemistry and Biochemistry, University
of California San Diego, La Jolla, California92093, United States
| | - Julia Lederhofer
- Vaccine
Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland20892, United States
| | - Yaroslav Tsybovsky
- Electron
Microscopy Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research
Sponsored by the National Cancer Institute, Frederick, Maryland21702, United States
| | - Ian A. Wilson
- Department
of Integrative Structural and Computational Biology and the Skaggs
Institute for Chemical Biology, The Scripps
Research Institute, La Jolla, California92037, United States
| | - Masaru Kanekiyo
- Vaccine
Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland20892, United States
| | - Rommie E. Amaro
- Department
of Chemistry and Biochemistry, University
of California San Diego, La Jolla, California92093, United States
| |
Collapse
|
21
|
Wang K, Zhang H, Tian Y. The current strategies of optimization of oseltamivir against mutant neuraminidases of influenza A:A review. Eur J Med Chem 2022; 243:114711. [DOI: 10.1016/j.ejmech.2022.114711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 08/14/2022] [Accepted: 08/22/2022] [Indexed: 11/04/2022]
|
22
|
Kim DB, Lee SM, Geem KR, Kim J, Kim EH, Lee DW. In planta Production and Validation of Neuraminidase Derived from Genotype 4 Reassortant Eurasian Avian-like H1N1 Virus as a Vaccine Candidate. Plants (Basel) 2022; 11:2984. [PMID: 36365437 PMCID: PMC9655071 DOI: 10.3390/plants11212984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/01/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
Influenza viruses are a major public health threat that causes repetitive outbreaks. In recent years, genotype 4 (G4) reassortant Eurasian avian-like (EA) H1N1 (G4 EA H1N1) has garnered attention as a potential novel pandemic strain. The necessity of developing vaccines against G4 EA H1N1 is growing because of the increasing cases of human infection and the low cross-reactivity of the strain with current immunity. In this study, we produced a G4 EA H1N1-derived neuraminidase (G4NA) as a vaccine candidate in Nicotiana benthamiana. The expressed G4NA was designed to be accumulated in the endoplasmic reticulum (ER). The M-domain of the human receptor-type tyrosine-protein phosphatase C was incorporated into the expression cassette to enhance the translation of G4NA. In addition, the family 3 cellulose-binding module and Brachypodium distachyon small ubiquitin-like modifier sequences were used to enable the cost-effective purification and removal of unnecessary domains after purification, respectively. The G4NA produced in plants displayed high solubility and assembled as a tetramer, which is required for the efficacy of an NA-based vaccine. In a mouse immunization model, the G4NA produced in plants could induce significant humoral immune responses. The plant-produced G4NA also stimulated antigen-specific CD4 T cell activation. These G4NA vaccine-induced immune responses were intensified by the administration of the antigen with a vaccine adjuvant. These results suggest that G4NA produced in plants has great potential as a vaccine candidate against G4 EA H1N1.
Collapse
Affiliation(s)
- Da Been Kim
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju 61186, Korea
| | - Sun Min Lee
- Viral Immunology Laboratory, Institut Pasteur Korea, Seongnam 13488, Korea
| | - Kyoung Rok Geem
- Department of Bioenergy Science and Technology, Chonnam National University, Gwangju 61186, Korea
| | - Jitae Kim
- Bio-Energy Research Center, Chonnam National University, Gwangju 61186, Korea
| | - Eui Ho Kim
- Viral Immunology Laboratory, Institut Pasteur Korea, Seongnam 13488, Korea
| | - Dong Wook Lee
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju 61186, Korea
- Department of Bioenergy Science and Technology, Chonnam National University, Gwangju 61186, Korea
- Bio-Energy Research Center, Chonnam National University, Gwangju 61186, Korea
| |
Collapse
|
23
|
Casalino L, Seitz C, Lederhofer J, Tsybovsky Y, Wilson IA, Kanekiyo M, Amaro RE. Breathing and tilting: mesoscale simulations illuminate influenza glycoprotein vulnerabilities. bioRxiv 2022:2022.08.02.502576. [PMID: 35982676 PMCID: PMC9387122 DOI: 10.1101/2022.08.02.502576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Influenza virus has resurfaced recently from inactivity during the early stages of the COVID-19 pandemic, raising serious concerns about the nature and magnitude of future epidemics. The main antigenic targets of influenza virus are two surface glycoproteins, hemagglutinin (HA) and neuraminidase (NA). Whereas the structural and dynamical properties of both glycoproteins have been studied previously, the understanding of their plasticity in the whole-virion context is fragmented. Here, we investigate the dynamics of influenza glycoproteins in a crowded protein environment through mesoscale all-atom molecular dynamics simulations of two evolutionary-linked glycosylated influenza A whole-virion models. Our simulations reveal and kinetically characterize three main molecular motions of influenza glycoproteins: NA head tilting, HA ectodomain tilting, and HA head breathing. The flexibility of HA and NA highlights antigenically relevant conformational states, as well as facilitates the characterization of a novel monoclonal antibody, derived from human convalescent plasma, that binds to the underside of the NA head. Our work provides previously unappreciated views on the dynamics of HA and NA, advancing the understanding of their interplay and suggesting possible strategies for the design of future vaccines and antivirals against influenza.
Collapse
Affiliation(s)
- Lorenzo Casalino
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, United States
| | - Christian Seitz
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, United States
| | - Julia Lederhofer
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Yaroslav Tsybovsky
- Electron Microscopy Laboratory, Cancer Research Technology Program, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, MD 21702, United States
| | - Ian A. Wilson
- Department of Integrative Structural and Computational Biology and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, United States
| | - Masaru Kanekiyo
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Rommie E. Amaro
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, California 92093, United States,Corresponding author.
| |
Collapse
|
24
|
Sun YX, Li ZR, Zhang PJ, Han JH, Di HY, Qin JY, Cong YL. A Single Vaccination of Chimeric Bivalent Virus-Like Particle Vaccine Confers Protection Against H9N2 and H3N2 Avian Influenza in Commercial Broilers and Allows a Strategy of Differentiating Infected from Vaccinated Animals. Front Immunol 2022; 13:902515. [PMID: 35874682 PMCID: PMC9304867 DOI: 10.3389/fimmu.2022.902515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/17/2022] [Indexed: 11/17/2022] Open
Abstract
H9N2 and H3N2 are the two most important subtypes of low pathogenic avian influenza viruses (LPAIV) because of their ongoing threat to the global poultry industry and public health. Although commercially available inactivated H9N2 vaccines are widely used in the affected countries, endemic H9N2 avian influenza remains uncontrolled. In addition, there is no available avian H3N2 vaccine. Influenza virus-like particles (VLPs) are one of the most promising vaccine alternatives to traditional egg-based vaccines. In this study, to increase the immunogenic content of VLPs to reduce production costs, we developed chimeric bivalent VLPs (cbVLPs) co-displaying hemagglutinin (HA) and neuraminidase (NA) of H9N2 and H3N2 viruses with the Gag protein of bovine immunodeficiency virus (BIV) as the inner core using the Bac-to-Bac baculovirus expression system. The results showed that a single immunization of chickens with 40μg/0.3mL cbVLPs elicited an effective immune response and provided complete protection against H9N2 and H3N2 viruses. More importantly, cbVLPs with accompanying serological assays can successfully accomplish the strategy of differentiating infected animals from vaccinated animals (DIVA), making virus surveillance easier. Therefore, this cbVLP vaccine candidate would be a promising alternative to conventional vaccines, showing great potential for commercial development.
Collapse
Affiliation(s)
- Yi-xue Sun
- Laboratory of Infectious Diseases, College of Veterinary Medicine; Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, China
- Jilin Research and Development Center of Biomedical Engineering, Changchun University, Changchun, China
| | - Zheng-rong Li
- Laboratory of Infectious Diseases, College of Veterinary Medicine; Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, China
| | - Peng-ju Zhang
- Institute of Animal Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China
- *Correspondence: Yan-long Cong, ; orcid.org/0000-0001-9497-4882
| | - Jin-hong Han
- Laboratory of Infectious Diseases, College of Veterinary Medicine; Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, China
| | - Hai-yang Di
- Department of Disease Prevention and Control, Zoological and Botanical Garden of Changchun, Changchun, China
| | - Jia-yi Qin
- Laboratory of Infectious Diseases, College of Veterinary Medicine; Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, China
| | - Yan-long Cong
- Laboratory of Infectious Diseases, College of Veterinary Medicine; Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, China
- *Correspondence: Yan-long Cong, ; orcid.org/0000-0001-9497-4882
| |
Collapse
|