Cited by 144Cytomegalovirus and herpesvirus researchT-cell and B-cell ImmunologyImmune responses and vaccinations

. Persistent viral infections and immune aging.

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Brunner, Stefan, Herndler-Brandstetter, Dietmar, Weinberger, Birgit, Grubeck-Loebenstein, Beatrix·2011·Ageing Research Reviews

Abstract

Immunosenescence comprises a set of dynamic changes occurring to both, the innate as well as the adaptive immune system that accompany human aging and result in complex manifestations of still poorly defined deficiencies in the elderly population. One of the most prominent alterations during aging is the continuous involution of the thymus gland which is almost complete by the age of 50. Consequently, the output of naïve T cells is greatly diminished in elderly individuals which puts pressure on homeostatic forces to maintain a steady T cell pool for most of adulthood. In a great proportion of the human population, this fragile balance is challenged by persistent viral infections, especially Cytomegalovirus (CMV), that oblige certain T cell clones to monoclonally expand repeatedly over a lifetime which then occupy space within the T cell pool. Eventually, these inflated memory T cell clones become exhausted and their extensive accumulation accelerates the age-dependent decline of the diversity of the T cell pool. As a consequence, infectious diseases are more frequent and severe in elderly persons and immunological protection following vaccination is reduced. This review therefore aims to shed light on how various types of persistent viral infections, especially CMV, influence the aging of the immune system and highlight potential measures to prevent the age-related decline in immune function.

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Crossref · 10.1016/j.arr.2010.08.003

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Authors
Brunner, S., Herndler-Brandstetter, D., Weinberger, B., & Grubeck-Loebenstein, B.
Affiliations
Austrian Academy of Sciences (AT)
Venue
Ageing Research Reviews
Publisher
Elsevier BV
Published
2011-07
Volume
10
Issue
3
Pages
362-369
ISSN
1568-1637 (ISSN-L)
OpenAlex
W1994360777
Cited by
143
References
127
Citations by year
2026: 6 · 2025: 3 · 2024: 5 · 2023: 3 · 2022: 7 · 2021: 12 · 2020: 11 · 2019: 7 · 2018: 3 · 2017: 5 · 2016: 12 · 2015: 12 · 2014: 12 · 2013: 16 · 2012: 19
FWCI
1.63
Type
journal article
Language
en
Open access
Locations
  • Ageing Research Reviews (publishedVersion)
  • PubMed (publishedVersion)
  • Oesterreichisches Musiklexikon online (Institut für kunst- und musikhistorische Forschungen der Österreichischen Akademie der Wissenschaften) (submittedVersion, other-oa)
  • Austrian Biographical Dictionary (Austrian Academy of Sciences) (submittedVersion, other-oa)
Topics
  • Health Sciences › Medicine › Epidemiology › Cytomegalovirus and herpesvirus research
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Life Sciences › Immunology and Microbiology › Immunology › Immune responses and vaccinations
Keywords
immunosenescence, viral persistence, cytomegalovirus, thymic involution, naive T cells, T cell exhaustion, T cell diversity, vaccine response in the elderly, age-related immune decline
MeSH terms
Aged, Aged, 80 and over, Aging, Humans, Immune System, T-Lymphocytes, Thymus Gland, Viral Vaccines, Virus Diseases, Treatment Outcome

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