Cited by 158Immune Response and InflammationT-cell and B-cell ImmunologyGenetics, Aging, and Longevity in Model Organisms

Cellular signaling in the aging immune system

Fulop, Tamas, Le Page, Aurélie, Fortin, Carl, Witkowski, Jacek M, Dupuis, Gilles, Larbi, Anis·2014·Current Opinion in Immunology

Abstract

Causes for immunosenescence and inflamm-aging have to be established. Efficient function of the immune system requires homeostatic regulation from receptor recognition of antigenic challenge to cell responses and adaptation to its changing environment. It is reasonable to assume that one of the most important molecular causes of immunosenescence is alteration in the regulation of signaling pathways. Indeed, alterations in feed-forward and negative feedback (inhibitory) signaling have been highlighted in all cells involved in the immune response including short-lived (neutrophils) and long-lived (T lymphocytes) cells. These dysregulations tip the balance in favor of altered (less efficient) function of the immune system. In this review, we summarize our knowledge on signal transduction changes in the aging immune system and propose a unifying mechanism as one of the causes of immunosenescence. Modulation of these pathways with aging represents a major challenge to restore the immune response to functional levels.

Integrity signals

Registry

Crossref · 10.1016/j.coi.2014.05.007

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85 of 85 references verified0 citation errors · 0 not checkable

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  • Studies of human T cells have associated aging with changes in autophagy, membrane raft properties, and reactive oxygen production, but these examined total T cell populations irrespective of naive or memory phenotype and are difficult to interpret.

    “Studies of human T cells have associated aging with changes in autophagy, in membrane properties to form rafts, and in reactive oxygen production (Fulop et al., 2014; Phadwal et al., 2012); however, these studies examined total T cell populations, irrespective of naive or memory phenotypes, and are therefore difficult to interpret.”

    From Successful and Maladaptive T Cell Aging (2017) · cites this paper as Fulop et al., 2014

  • In almost all immune cells, one of the most prominent changes with aging regards signaling.

    “In almost all immune cells, one of the most prominent changes occurring with aging regards signaling, that is integrating all the molecular events converging from the surface receptors to an adequate cellular response [132].”

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Authors
Fulop, T., Le Page, A., Fortin, C., Witkowski, J. M., Dupuis, G., & Larbi, A.
Affiliations
  • Université de Sherbrooke (CA)
  • Gdańsk Medical University (PL)
  • Agency for Science, Technology and Research (SG)
Venue
Current Opinion in Immunology
Publisher
Elsevier BV
Published
2014-08
Volume
29
Pages
105-111
ISSN
0952-7915 (ISSN-L)
OpenAlex
W2049865778
Cited by
158
References
85
Citations by year
2026: 2 · 2025: 6 · 2024: 10 · 2023: 4 · 2022: 16 · 2021: 14 · 2020: 13 · 2019: 14 · 2018: 16 · 2017: 20 · 2016: 17 · 2015: 20 · 2014: 6
FWCI
2.05
Type
journal article
Language
en
Open access
closed
Locations
  • Current Opinion in Immunology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Canadian Institutes of Health Research (106634, 106701)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • 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
immunosenescence, inflammaging, signal transduction, aging immune system, negative feedback signaling, feed-forward signaling, T cells, neutrophils, immune homeostasis
MeSH terms
Aging, Animals, Humans, Neutrophils, Oxidation-Reduction, Receptors, Antigen, T-Cell, T-Lymphocytes, Signal Transduction

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