Cited by 834T-cell and B-cell ImmunologyGenetics, Aging, and Longevity in Model OrganismsImmunotoxicology and immune responses

Immunosenescence of ageing

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Gruver, AL, Hudson, LL, Sempowski, GD·2007·The Journal of Pathology

Abstract

Ageing is a complex process that negatively impacts the development of the immune system and its ability to function. The mechanisms that underlie these age‐related defects are broad and range from defects in the haematopoietic bone marrow to defects in peripheral lymphocyte migration, maturation and function. The thymus is a central lymphoid organ responsible for production of naïve T cells, which play a vital role in mediating both cellular and humoral immunity. Chronic involution of the thymus gland is thought to be one of the major contributing factors to loss of immune function with increasing age. It has recently been demonstrated that thymic atrophy is mediated by a shift from a stimulatory to a suppressive cytokine microenvironment. In this review we present an overview of the morphological, cellular and biochemical changes that have been implicated in the decline of thymic and peripheral immune function with ageing. We conclude with the clinical implications of age‐associated immunosenescence to vaccine development for tumours and infectious disease. A fundamental understanding of the complex mechanisms by which ageing attenuates immune function will enable translational research teams to develop new therapies and vaccines specifically aimed at overcoming these defects in immunological function in the aged. Copyright © 2007 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.

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Crossref · 10.1002/path.2104

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  • Newly generated naive T cells that enter the aged T cell repertoire show reduced T effector qualities upon activation and generate less effective memory cells.

    “Evidence suggests newly generated naive T cells that do manage to enter the aged T cell repertoire display reduced T effector qualities upon activation and generate less effective memory cells134.”

    From SARS-CoV-2, COVID-19 and the aging immune system (2021) · cites this paper as [134]

  • In influenza, a decrease in virus-specific CD8+ T cells negatively affected viral clearance in the elderly.

    “In the case of influenza virus, aged CD8+ T cells showed reduced expansion or proliferative capacity, and this decrease in virus-specific CD8+ T cells negatively affected viral clearance in the elderly134.”

    From SARS-CoV-2, COVID-19 and the aging immune system (2021) · cites this paper as [134]

  • In influenza, aged CD8+ T cells show reduced expansion or proliferative capacity.

    “In the case of influenza virus, aged CD8+ T cells showed reduced expansion or proliferative capacity, and this decrease in virus-specific CD8+ T cells negatively affected viral clearance in the elderly134.”

    From SARS-CoV-2, COVID-19 and the aging immune system (2021) · cites this paper as [134]

  • Expression of CD40L decreases on aged CD4+ T cells.

    “Expression of CD40L, a costimulatory molecule critical for successful T and B cell interactions, decreases on aged CD4+ T cells134.”

    From SARS-CoV-2, COVID-19 and the aging immune system (2021) · cites this paper as [134]

  • Thymic involution involves progressive deterioration and disappearance of functional thymic compartments and accumulation of adipose tissue, leaving only traces of functional thymic tissue at age 70 or more.

    “This process is referred to as thymic involution, and is characterized by the progressive deterioration and disappearance of functional thymic compartments (cortex and medulla) and accumulation of adipose tissue, so that only traces of functional thymic tissues are found at age 70 or more [69].”

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Authors
Gruver, A., Hudson, L., & Sempowski, G.
Affiliations
Duke Medical Center (US)
Venue
The Journal of Pathology
Publisher
Wiley
Published
2007-01
Volume
211
Issue
2
Pages
144-156
ISSN
  • 0022-3417 (ISSN-L)
  • 1096-9896
OpenAlex
W2080808232
Cited by
834
References
138
Citations by year
2026: 17 · 2025: 25 · 2024: 35 · 2023: 48 · 2022: 46 · 2021: 63 · 2020: 46 · 2019: 49 · 2018: 47 · 2017: 55 · 2016: 42 · 2015: 52 · 2014: 45 · 2013: 37 · 2012: 35
FWCI
4.13
Type
journal article
Language
en
Open access
Locations
  • The Journal of Pathology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Aging (R01AG025150)
  • National Institute of Allergy and Infectious Diseases (UC6AI058607)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotoxicology and immune responses
Keywords
immunosenescence, aging, thymic involution, thymus, naive T cells, thymic atrophy, cytokine microenvironment, bone marrow, lymphocyte function, vaccine development
MeSH terms
Aged, Aged, 80 and over, Aging, Atrophy, B-Lymphocytes, Bone Marrow Cells, Communicable Diseases, Hematopoiesis, Humans, Lymphoid Tissue, Neoplasms, Stem Cells, T-Lymphocytes, Thymus Gland, Vaccines, T-Lymphocytes, Regulatory

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