Cited by 127Telomeres, Telomerase, and SenescenceT-cell and B-cell ImmunologyGenetics, Aging, and Longevity in Model Organisms

Replicative senescence of CD8 T cells: Effect on human ageing

Effros, Rita B.·2004·Experimental Gerontology

Abstract

Elderly persons have been exposed to a myriad of pathogens over their lifespan. This life-long immunological history leads, in some cases, to the generation of expanded populations of memory CD8 T cells that have reached the end stage of replicative senescence. In cell culture, CD8 T cells that are subjected to repeated rounds of antigen-driven proliferation eventually show irreversible cell cycle arrest, permanent and complete loss of CD28 gene expression, apoptosis resistance, reduced gene transcription of the major stress protein in response to heat shock, and shortened telomeres compared to their CD28-expressing progenitors. Clinical studies have documented that high proportions of CD8 T cells that lack CD28 are correlated with reduced antibody response to influenza vaccination and are also an immune marker of increased risk of mortality in persons greater than 80 years of age. In addition, CD8 T cells lacking CD28 expression have been documented to have suppressive influences on immune function. Thus, senescent CD8 T cells may affect immune function both directly and indirectly by modulating other immune cell types. The potential role of senescent T cells in bone homeostasis is suggested as a potentially fruitful area for future investigation. The patterns of cytokine changes observed during the progression to senescence in cell culture are consistent with this possibility, and T cells producing these same cytokines have, in fact, been identified within the bone marrow in murine models of osteoporosis. Interestingly, CD8 T cells with markers of replicative senescence are correlated with increased osteoporotic fractures in the elderly. Thus, senescent CD8 T cells are associated with a variety of deleterious health-related outcomes, suggesting that these cells may exert pleiotropic negative effects on both immune and non-immune organ systems during ageing.

Integrity signals

Registry

Crossref · 10.1016/j.exger.2003.09.024

Cites

83 of 83 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

2 of the 85 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Effros, R. B.
Affiliations
University of California, Los Angeles (US)
Corresponding author
Effros, Rita B.
Venue
Experimental Gerontology
Publisher
Elsevier BV
Published
2004-04
Volume
39
Issue
4
Pages
517-524
ISSN
0531-5565 (ISSN-L)
OpenAlex
W2006184746
Cited by
127
References
85
Citations by year
2026: 3 · 2025: 2 · 2024: 3 · 2023: 2 · 2021: 1 · 2020: 2 · 2019: 9 · 2018: 10 · 2017: 6 · 2016: 3 · 2015: 4 · 2014: 5 · 2013: 6 · 2012: 4
FWCI
5.76
Type
journal article
Language
en
Open access
closed
Locations
  • Experimental Gerontology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r21ai047665-02)
  • National Institute on Aging (AG-10415, P60AG010415)
  • National Institute of Allergy and Infectious Diseases (AI47665)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • 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
Keywords
replicative senescence, CD8+ T cells, human aging, telomere shortening, cell cycle arrest, apoptosis resistance, memory T cells, influenza vaccine response, bone homeostasis, osteoporosis, osteoporotic fractures, cytokines, immunosenescence
MeSH terms
Aging, Estrogens, Humans, Bone Remodeling, Cellular Senescence, CD8-Positive T-Lymphocytes

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review