Cited by 49T-cell and B-cell ImmunologyCytomegalovirus and herpesvirus researchHIV Research and Treatment

Naïve and memory CD8 T cell pool homeostasis in advanced aging: impact of age and of antigen-specific responses to cytomegalovirus

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Vescovini, Rosanna, Fagnoni, Francesco Fausto, Telera, Anna Rita, Bucci, Laura, Pedrazzoni, Mario, Magalini, Francesca, Stella, Adriano, Pasin, Federico +7 more·2014·AGE

Abstract

Alterations in the circulating CD8+ T cell pool, with a loss of naïve and accumulation of effector/effector memory cells, are pronounced in older adults. However, homeostatic forces that dictate such changes remain incompletely understood. This observational cross-sectional study explored the basis for variability of CD8+ T cell number and composition of its main subsets: naïve, central memory and effector memory T cells, in 131 cytomegalovirus (CMV) seropositive subjects aged over 60 years. We found great heterogeneity of CD8+ T cell numbers, which was mainly due to variability of the CD8 + CD28- T cell subset regardless of age. Analysis, by multiple regression, of distinct factors revealed that age was a predictor for the loss in absolute number of naïve T cells, but was not associated with changes in central or effector memory CD8+ T cell subsets. By contrast, the size of CD8+ T cells specific to pp65 and IE-1 antigens of CMV, predicted CD28 - CD8+ T cell, antigen-experienced CD8+ T cell, and even total CD8+ T cell numbers, but not naïve CD8+ T cell loss. These results indicate a clear dichotomy between the homeostasis of naïve and antigen-experienced subsets of CD8+ T cells which are independently affected, in human later life, by age and antigen-specific responses to CMV, respectively.

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  • Naïve T cells decline with age even in individuals not infected with CMV.

    “considering the age-associated decline of these cells even in those not infected with CMV (Vescovini et al. 2013; Wertheimer et al. 2014).”

    From Is immunosenescence influenced by our lifetime “dose” of exercise? (2016) · cites this paper as Vescovini et al. 2013

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Authors
Vescovini, R., Fagnoni, F. F., Telera, A. R., Bucci, L., Pedrazzoni, M., Magalini, F., Stella, A., Pasin, F., Medici, M. C., Calderaro, A., Volpi, R., Monti, D., Franceschi, C., Nikolich-Žugich, J., & Sansoni, P.
Affiliations
  • University of Parma (IT)
  • Ospedale di Parma (IT)
  • University of Bologna (IT)
  • University of Florence (IT)
Corresponding author
Vescovini, Rosanna
Venue
AGE
Published
2013-12-08
Volume
36
Issue
2
Pages
625-640
ISSN
  • 0161-9152 (ISSN-L)
  • 1574-4647
OpenAlex
W1978279708
Cited by
48
References
52
Citations by year
2026: 3 · 2025: 3 · 2022: 4 · 2021: 3 · 2020: 1 · 2019: 8 · 2018: 6 · 2017: 9 · 2016: 5 · 2015: 4 · 2014: 2
FWCI
2.03
Type
journal article
Language
en
Open access
Locations
  • AGE (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • Florence Research (University of Florence) (submittedVersion)
Funders
  • Fondazione Cariparma
  • National Institute on Aging (R01AG035309, R01AG020719)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Health Sciences › Medicine › Epidemiology › Cytomegalovirus and herpesvirus research
  • Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
Keywords
CD8+ T cells, T cell homeostasis, aging, naive T cells, memory T cells, central memory T cells, effector memory T cells, cytomegalovirus, pp65 antigen, CD28-negative T cells, antigen-experienced T cells, older adults
MeSH terms
Aged, Aged, 80 and over, Aging, Antibodies, Viral, Antigens, Viral, Cross-Sectional Studies, Cytomegalovirus Infections, Cytomegalovirus, Female, Flow Cytometry, Follow-Up Studies, Homeostasis, Humans, Immunologic Memory, Lymphocyte Activation, Male, Middle Aged, Phenotype, CD8-Positive T-Lymphocytes

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