Cited by 76Immune Cell Function and InteractionInfluenza Virus Research Studiesinterferon and immune responses

Natural killer cell function is altered during the primary response of aged mice to influenza infection

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Beli, Eleni, Clinthorne, Jonathan F., Duriancik, David M., Hwang, IIwoong, Kim, Sungjin, Gardner, Elizabeth M.·2011·Mechanisms of Ageing and Development

Abstract

Influenza is a public health concern, especially for the elderly. While influenza vaccination is efficacious in the young, it offers only limited protection in the elderly. Thus, it becomes imperative to understand age-related changes in the primary response to influenza infection. This study identified potential age-related defects in natural killer (NK) cell function during influenza infection. We showed that NK cells from aged mice were reduced and had impaired function and altered phenotype in lungs during influenza infection. Aged NK cells demonstrated decreased IFN-γ production, but not degranulation, after influenza infection. However, after ex vivo activation with YAC-1 cells, aged NK cells demonstrated both reduced IFN-γ production and degranulation. IFN-γ was also reduced in aged NK cells after activation with anti-NKp46 and soluble cytokines. IFN-β, and IL-12p40 mRNA expression was not significantly different from that observed in adult mice. Analysis of NK cell subsets indicated that aged mice had more immature and less terminally mature NK cells. These data suggest that aging affects the numbers, function and phenotype of NK cells. Thus, these defects in NK cell function could impair the ability of aged mice to induce a strong antiviral immune response during the early stages of the infection.

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Crossref · 10.1016/j.mad.2011.08.005

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  • An age-associated increase in NK cell senescence has been shown to impair antiviral immune responses in response to influenza.

    “An age-associated increase in NK cell senescence has been shown to impair antiviral immune responses in response to influenza (3, 128).”

    From Aging and Lung Disease (2020) · cites this paper as [128]

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Authors
Beli, E., Clinthorne, J. F., Duriancik, D. M., Hwang, I., Kim, S., & Gardner, E. M.
Affiliations
Michigan State University (US)
Corresponding author
Gardner, Elizabeth M.
Venue
Mechanisms of Ageing and Development
Publisher
Elsevier BV
Published
2011-10
Volume
132
Issue
10
Pages
503-510
ISSN
0047-6374 (ISSN-L)
OpenAlex
W2055596465
Cited by
76
References
53
Citations by year
2026: 1 · 2025: 4 · 2024: 4 · 2023: 7 · 2022: 3 · 2021: 5 · 2020: 8 · 2019: 6 · 2018: 3 · 2017: 3 · 2016: 10 · 2015: 2 · 2014: 6 · 2013: 7 · 2012: 7
FWCI
2.84
Type
journal article
Language
en
Open access
Locations
  • Mechanisms of Ageing and Development (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
NIA (R01AG034949)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Cell Function and Interaction
  • Health Sciences › Medicine › Epidemiology › Influenza Virus Research Studies
  • Life Sciences › Immunology and Microbiology › Immunology › interferon and immune responses
Keywords
natural killer cells, aging, influenza, primary immune response, IFN-gamma production, NK cell degranulation, NK cell maturation, NK cell subsets, antiviral immunity, older adults, influenza vaccination, lung immune response
MeSH terms
Aging, Animals, Cell Differentiation, Interferon-gamma, Killer Cells, Natural, Lung, Male, Mice, Inbred C57BL, Orthomyxoviridae Infections, Spleen, Cell Degranulation, Mice

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