1
|
Kang H, Martinez MR, Aves KL, Okholm AK, Wan H, Chabot S, Malik T, Sander AF, Daniels R. Capsid virus-like particle display improves recombinant influenza neuraminidase antigen stability and immunogenicity in mice. iScience 2024; 27:110038. [PMID: 38883830 PMCID: PMC11179578 DOI: 10.1016/j.isci.2024.110038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 03/20/2024] [Accepted: 05/16/2024] [Indexed: 06/18/2024] Open
Abstract
Supplementing influenza vaccines with additional protective antigens such as neuraminidase (NA) is a promising strategy for increasing the breadth of the immune response. Here, we improved the immunogenicity and stability of secreted recombinant NA (rNA) tetramers by covalently conjugating them onto the surface of AP205 capsid virus-like particles (cVLPs) using a Tag/Catcher ligation system. cVLP display increased the induction of IgG2a subclass anti-NA antibodies, which exhibited cross-reactivity with an antigenically distant homologous NA. It also reduced the single dose rNA amounts needed for protection against viral challenge in mice, demonstrating a dose-sparing effect. Moreover, effective cVLP-display was achieved across different NA subtypes, even when the conjugation was performed shortly before administration. Notably, the rNA-cVLP immunogenicity was retained upon mixing or co-administering with commercial vaccines. These results highlight the potential of this approach for bolstering the protective immune responses elicited by influenza vaccines.
Collapse
Affiliation(s)
- Hyeog Kang
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Mira Rakic Martinez
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Kara-Lee Aves
- Department of Immunology and Microbiology, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Anna Kathrine Okholm
- Department of Immunology and Microbiology, University of Copenhagen, 2200 Copenhagen, Denmark
| | - Hongquan Wan
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA
| | - Sylvie Chabot
- 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
| | - Adam F Sander
- Department of Immunology and Microbiology, University of Copenhagen, 2200 Copenhagen, Denmark
- AdaptVac, Ole Maaløes Vej 3, 2200 Copenhagen, Denmark
| | - Robert Daniels
- Division of Viral Products, Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, MD 20993, USA
| |
Collapse
|
2
|
Hay JA, Zhu H, Jiang CQ, Kwok KO, Shen R, Kucharski A, Yang B, Read JM, Lessler J, Cummings DAT, Riley S. Reconstructed influenza A/H3N2 infection histories reveal variation in incidence and antibody dynamics over the life course. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.03.18.24304371. [PMID: 38562868 PMCID: PMC10984066 DOI: 10.1101/2024.03.18.24304371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Humans experience many influenza infections over their lives, resulting in complex and varied immunological histories. Although experimental and quantitative analyses have improved our understanding of the immunological processes defining an individual's antibody repertoire, how these within-host processes are linked to population-level influenza epidemiology remains unclear. Here, we used a multi-level mathematical model to jointly infer antibody dynamics and individual-level lifetime influenza A/H3N2 infection histories for 1,130 individuals in Guangzhou, China, using 67,683 haemagglutination inhibition (HI) assay measurements against 20 A/H3N2 strains from repeat serum samples collected between 2009 and 2015. These estimated infection histories allowed us to reconstruct historical seasonal influenza patterns and to investigate how influenza incidence varies over time, space and age in this population. We estimated median annual influenza infection rates to be approximately 18% from 1968 to 2015, but with substantial variation between years. 88% of individuals were estimated to have been infected at least once during the study period (2009-2015), and 20% were estimated to have three or more infections in that time. We inferred decreasing infection rates with increasing age, and found that annual attack rates were highly correlated across all locations, regardless of their distance, suggesting that age has a stronger impact than fine-scale spatial effects in determining an individual's antibody profile. Finally, we reconstructed each individual's expected antibody profile over their lifetime and inferred an age-stratified relationship between probability of infection and HI titre. Our analyses show how multi-strain serological panels provide rich information on long term, epidemiological trends, within-host processes and immunity when analyzed using appropriate inference methods, and adds to our understanding of the life course epidemiology of influenza A/H3N2.
Collapse
Affiliation(s)
- James A. Hay
- Pandemic Sciences Institute, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
- MRC Centre for Global Infectious Disease Analysis, Imperial College London
| | - Huachen Zhu
- Guangdong-Hong Kong Joint Laboratory of Emerging Infectious Diseases/MOE Joint Laboratory for International Collaboration in Virology and Emerging Infectious Diseases, Joint Institute of Virology (Shantou University/The University of Hong Kong), Shantou University, Shantou, China
- State Key Laboratory of Emerging Infectious Diseases / World Health Organization Influenza Reference Laboratory, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- 5EKIH (Gewuzhikang) Pathogen Research Institute, Guangdong, China
| | | | - Kin On Kwok
- The Jockey Club School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
- Hong Kong Institute of Asia-Pacific Studies, The Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Ruiyin Shen
- Guangzhou No.12 Hospital, Guangzhou, Guangdong, China
| | - Adam Kucharski
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, United Kingdom
| | - Bingyi Yang
- WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Jonathan M. Read
- Centre for Health Informatics Computing and Statistics, Lancaster University, Lancaster, United Kingdom
| | - Justin Lessler
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, United States
- Department of Epidemiology, UNC Gillings School of Global Public Health, Chapel Hill, United States
- UNC Carolina Population Center, Chapel Hill, United States
| | - Derek A. T. Cummings
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, United States
| | - Steven Riley
- MRC Centre for Global Infectious Disease Analysis, Imperial College London
| |
Collapse
|
3
|
Wu NC, Ellebedy AH. Targeting neuraminidase: the next frontier for broadly protective influenza vaccines. Trends Immunol 2024; 45:11-19. [PMID: 38103991 PMCID: PMC10841738 DOI: 10.1016/j.it.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/17/2023] [Accepted: 11/18/2023] [Indexed: 12/19/2023]
Abstract
Current seasonal influenza vaccines, which mainly target hemagglutinin (HA), require annual updates due to the continuous antigenic drift of the influenza virus. Developing an influenza vaccine with increased breadth of protection will have significant public health benefits. The recent discovery of broadly protective antibodies to neuraminidase (NA) has provided important insights into developing a universal influenza vaccine, either by improving seasonal influenza vaccines or designing novel immunogens. However, further in-depth molecular characterizations of NA antibody responses are warranted to fully leverage broadly protective NA antibodies for influenza vaccine designs. Overall, we posit that focusing on NA for influenza vaccine development is synergistic with existing efforts targeting HA, and may represent a cost-effective approach to generating a broadly protective influenza vaccine.
Collapse
Affiliation(s)
- Nicholas C Wu
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA; Center for Biophysics and Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA; Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA; Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
| | - Ali H Ellebedy
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110, USA; Center for Vaccines and Immunity to Microbial Pathogens, Washington University School of Medicine, St. Louis, MO 63110, USA; The Andrew M. and Jane M. Bursky Center for Human Immunology and Immunotherapy Programs, Washington University School of Medicine, Saint Louis, MO 63110, USA.
| |
Collapse
|
4
|
Daulagala P, Cheng SM, Chin A, Luk LL, Leung K, Wu JT, Poon LL, Peiris M, Yen HL. Avian Influenza A(H5N1) Neuraminidase Inhibition Antibodies in Healthy Adults after Exposure to Influenza A(H1N1)pdm09. Emerg Infect Dis 2024; 30:168-171. [PMID: 38147510 PMCID: PMC10756388 DOI: 10.3201/eid3001.230756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2023] Open
Abstract
We detected high titers of cross-reactive neuraminidase inhibition antibodies to influenza A(H5N1) virus clade 2.3.4.4b in 96.8% (61/63) of serum samples from healthy adults in Hong Kong in 2020. In contrast, antibodies at low titers were detected in 42% (21/50) of serum samples collected in 2009. Influenza A(H1N1)pdm09 and A(H5N1) titers were correlated.
Collapse
Affiliation(s)
- Pavithra Daulagala
- School of Public Health, The University of Hong Kong, Hong Kong, China (P. Daulagala, S.M.S. Cheng, A. Chin, L.H.L. Luk, K. Leung, J.T. Wu, L.L.M. Poon, M. Peiris, H.L. Yen)
- The University of Hong Kong–Shenzhen Hospital, Shenzhen, China (K. Leung)
- Centre for Immunology and Infection, Hong Kong Science Park, Hong Kong (L.L.M. Poon, M. Peiris)
| | - Samuel M.S. Cheng
- School of Public Health, The University of Hong Kong, Hong Kong, China (P. Daulagala, S.M.S. Cheng, A. Chin, L.H.L. Luk, K. Leung, J.T. Wu, L.L.M. Poon, M. Peiris, H.L. Yen)
- The University of Hong Kong–Shenzhen Hospital, Shenzhen, China (K. Leung)
- Centre for Immunology and Infection, Hong Kong Science Park, Hong Kong (L.L.M. Poon, M. Peiris)
| | - Alex Chin
- School of Public Health, The University of Hong Kong, Hong Kong, China (P. Daulagala, S.M.S. Cheng, A. Chin, L.H.L. Luk, K. Leung, J.T. Wu, L.L.M. Poon, M. Peiris, H.L. Yen)
- The University of Hong Kong–Shenzhen Hospital, Shenzhen, China (K. Leung)
- Centre for Immunology and Infection, Hong Kong Science Park, Hong Kong (L.L.M. Poon, M. Peiris)
| | - Leo L.H. Luk
- School of Public Health, The University of Hong Kong, Hong Kong, China (P. Daulagala, S.M.S. Cheng, A. Chin, L.H.L. Luk, K. Leung, J.T. Wu, L.L.M. Poon, M. Peiris, H.L. Yen)
- The University of Hong Kong–Shenzhen Hospital, Shenzhen, China (K. Leung)
- Centre for Immunology and Infection, Hong Kong Science Park, Hong Kong (L.L.M. Poon, M. Peiris)
| | - Kathy Leung
- School of Public Health, The University of Hong Kong, Hong Kong, China (P. Daulagala, S.M.S. Cheng, A. Chin, L.H.L. Luk, K. Leung, J.T. Wu, L.L.M. Poon, M. Peiris, H.L. Yen)
- The University of Hong Kong–Shenzhen Hospital, Shenzhen, China (K. Leung)
- Centre for Immunology and Infection, Hong Kong Science Park, Hong Kong (L.L.M. Poon, M. Peiris)
| | - Joseph T. Wu
- School of Public Health, The University of Hong Kong, Hong Kong, China (P. Daulagala, S.M.S. Cheng, A. Chin, L.H.L. Luk, K. Leung, J.T. Wu, L.L.M. Poon, M. Peiris, H.L. Yen)
- The University of Hong Kong–Shenzhen Hospital, Shenzhen, China (K. Leung)
- Centre for Immunology and Infection, Hong Kong Science Park, Hong Kong (L.L.M. Poon, M. Peiris)
| | - Leo L.M. Poon
- School of Public Health, The University of Hong Kong, Hong Kong, China (P. Daulagala, S.M.S. Cheng, A. Chin, L.H.L. Luk, K. Leung, J.T. Wu, L.L.M. Poon, M. Peiris, H.L. Yen)
- The University of Hong Kong–Shenzhen Hospital, Shenzhen, China (K. Leung)
- Centre for Immunology and Infection, Hong Kong Science Park, Hong Kong (L.L.M. Poon, M. Peiris)
| | | | | |
Collapse
|
5
|
Fox A. Drift and shape-new insights into human immunity against influenza virus neuraminidase. mBio 2023; 14:e0165423. [PMID: 37933976 PMCID: PMC10746272 DOI: 10.1128/mbio.01654-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023] Open
Abstract
Influenza virus hemagglutinin mediates infection by binding sialic acids, whereas neuraminidase cleaves sialic acids to release progeny virions. Both are targets of protective antibodies, but influenza vaccine strain selection and antigen dose are based on hemagglutinin alone. Virus characterization using first infection ferret sera indicates that escape from hemagglutination inhibiting (HI) antibodies occurs more frequently and is not coordinated with escape from neuraminidase inhibiting (NI) antibodies. A key question addressed by Daulagala et al. (P. Daulagala, B. R. Mann, K. Leung, E. H. Y. Lau, et al., mBio 14:e00084-23, 2023, https://doi.org/10.1128/mbio.00084-23) is how this translates to humans who encounter multiple influenza viruses throughout life. Their cross-sectional study, using sera from a wide age range of participants and H1N1 viruses spanning 1977-2015, indicates that NI antibodies are more broadly cross-reactive than HI antibodies. Both HI and NI titers were highest against strains encountered in childhood indicating that both are shaped by priming exposures. The study further supports the development of NA-optimized vaccines.
Collapse
Affiliation(s)
- Annette Fox
- WHO Collaborating Centre for Reference and Research on Influenza, Royal Melbourne Hospital, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Department of Infectious Diseases, University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| |
Collapse
|