Cited by 490T-cell and B-cell ImmunologyInfluenza Virus Research StudiesImmunotherapy and Immune Responses

Age-associated decline in T cell repertoire diversity leads to holes in the repertoire and impaired immunity to influenza virus

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Yager, Eric J., Ahmed, Mushtaq, Lanzer, Kathleen, Randall, Troy D., Woodland, David L., Blackman, Marcia A.·2008·The Journal of Experimental Medicine

Abstract

A diverse T cell repertoire is essential for a vigorous immune response to new infections, and decreasing repertoire diversity has been implicated in the age-associated decline in CD8 T cell immunity. In this study, using the well-characterized mouse influenza virus model, we show that although comparable numbers of CD8 T cells are elicited in the lung and lung airways of young and aged mice after de novo infection, a majority of aged mice exhibit profound shifts in epitope immunodominance and restricted diversity in the TCR repertoire of responding cells. A preferential decline in reactivity to viral epitopes with a low naive precursor frequency was observed, in some cases leading to “holes” in the T cell repertoire. These effects were also seen in young thymectomized mice, consistent with the role of the thymus in maintaining naive repertoire diversity. Furthermore, a decline in repertoire diversity generally correlated with impaired responses to heterosubtypic challenge. This study formally demonstrates in a mouse infection model that naturally occurring contraction of the naive T cell repertoire can result in impaired CD8 T cell responses to known immunodominant epitopes and decline in heterosubtypic immunity. These observations have important implications for the design of vaccine strategies for the elderly.

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  • Mice have a smaller starting repertoire and functional holes have been described with age.

    “This is in contrast to mice, which have a smaller repertoire to start with and functional holes have been described with age”

    From Successful and Maladaptive T Cell Aging (2017) · cites this paper as Yager et al., 2008

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Authors
Yager, E. J., Ahmed, M., Lanzer, K., Randall, T. D., Woodland, D. L., & Blackman, M. A.
Affiliations
Trudeau Institute (US)
Venue
The Journal of Experimental Medicine
Published
2008-03-10
Volume
205
Issue
3
Pages
711-723
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2140058614
Cited by
490
References
80
Citations by year
2026: 23 · 2025: 22 · 2024: 15 · 2023: 29 · 2022: 19 · 2021: 36 · 2020: 32 · 2019: 30 · 2018: 17 · 2017: 23 · 2016: 29 · 2015: 21 · 2014: 27 · 2013: 29 · 2012: 44
FWCI
13.07
Type
journal article
Language
en
Open access
Locations
  • The Journal of Experimental Medicine (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Funders
  • National Institute on Aging (F32AG029010, R03AG022175, F23 AG029010)
  • National Institute of Allergy and Infectious Diseases (T32-AI49823, T32AI049823)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Health Sciences › Medicine › Epidemiology › Influenza Virus Research Studies
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
T cell repertoire diversity, immunosenescence, CD8+ T cells, influenza virus, thymectomy, heterosubtypic immunity, T cell receptor repertoire, aged mice
MeSH terms
Aging, Animals, Antigenic Variation, Antigens, Viral, Female, Immune Tolerance, Male, Mice, Inbred C57BL, Mice, Mutant Strains, Nucleoproteins, Influenza A virus, RNA-Dependent RNA Polymerase, T-Lymphocytes, Thymectomy, Viral Core Proteins, Viral Proteins, Immunodominant Epitopes, RNA-Binding Proteins, Receptors, Antigen, T-Cell, alpha-beta, Mice, Knockout, CD8-Positive T-Lymphocytes, Models, Immunological, Nucleocapsid Proteins, Genes, T-Cell Receptor beta, Mice, Precursor Cells, T-Lymphoid

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