Cited by 64Influenza Virus Research StudiesRespiratory viral infections researchVirology and Viral Diseases

Age-Associated Cross-reactive Antibody-Dependent Cellular Cytotoxicity Toward 2009 Pandemic Influenza A Virus Subtype H1N1

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Jegaskanda, Sinthujan, Laurie, Karen L., Amarasena, Thakshila H., Winnall, Wendy R., Kramski, Marit, De Rose, Robert, Barr, Ian G., Brooks, Andrew G. +2 more·2013·The Journal of Infectious Diseases

Abstract

BACKGROUND: During the 2009 pandemic of influenza A virus subtype H1N1 (A[H1N1]pdm09) infection, older individuals were partially protected from severe disease. It is not known whether preexisting antibodies with effector functions such as antibody-dependent cellular cytotoxicity (ADCC) contributed to the immunity observed. METHODS: We tested serum specimens obtained from 182 individuals aged 1-72 years that were collected either immediately before or after the A(H1N1)pdm09 pandemic for ADCC antibodies to the A(H1N1)pdm09 hemagglutinin (HA) protein. RESULTS: A(H1N1)pdm09 HA-specific ADCC antibodies were detected in almost all individuals aged >45 years (28/31 subjects) before the 2009 A(H1N1) pandemic. Conversely, only approximately half of the individuals aged 1-14 years (11/31) and 15-45 years (17/31) had cross-reactive ADCC antibodies before the 2009 A(H1N1) pandemic. The A(H1N1)pdm09-specific ADCC antibodies were able to efficiently mediate the killing of influenza virus-infected respiratory epithelial cells. Further, subjects >45 years of age had higher ADCC titers to a range of seasonal H1N1 HA proteins, including from the 1918 virus, compared with younger individuals. CONCLUSIONS: ADCC antibodies may have contributed to the protection exhibited in older individuals during the 2009 A(H1N1) pandemic. This work has significant implications for improved vaccination strategies for future influenza pandemics.

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Crossref · 10.1093/infdis/jit294

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Authors
Jegaskanda, S., Laurie, K. L., Amarasena, T. H., Winnall, W. R., Kramski, M., De Rose, R., Barr, I. G., Brooks, A. G., Reading, P. C., & Kent, S. J.
Affiliations
  • The University of Melbourne (AU)
  • Victorian Infectious Diseases Reference Laboratory (AU)
Corresponding author
Jegaskanda, Sinthujan
Venue
The Journal of Infectious Diseases
Published
2013-06-28
Volume
208
Issue
7
Pages
1051-1061
ISSN
  • 0022-1899 (ISSN-L)
  • 1537-6613
OpenAlex
W2102497131
Cited by
64
References
39
Citations by year
2026: 1 · 2024: 1 · 2023: 4 · 2022: 3 · 2021: 3 · 2020: 5 · 2019: 8 · 2018: 6 · 2017: 10 · 2016: 14 · 2015: 2 · 2014: 4 · 2013: 3
FWCI
5.57
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • The Journal of Infectious Diseases (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Minerva Access (University of Melbourne) (submittedVersion)
Topics
  • Health Sciences › Medicine › Epidemiology › Influenza Virus Research Studies
  • Health Sciences › Medicine › Epidemiology › Respiratory viral infections research
  • Health Sciences › Medicine › Epidemiology › Virology and Viral Diseases
Keywords
antibody-dependent cellular cytotoxicity, 2009 H1N1 pandemic, pre-existing immunity, cross-reactive antibodies, age-related immunity, hemagglutinin, seasonal H1N1, 1918 influenza, airway epithelial cells, older adults
MeSH terms
Adolescent, Adult, Age Factors, Antibodies, Viral, Antibody-Dependent Cell Cytotoxicity, Child, Child, Preschool, Female, Humans, Infant, Influenza, Human, Male, Middle Aged, Influenza A Virus, H1N1 Subtype, Young Adult

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