Cited by 321Telomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model OrganismsSirtuins and Resveratrol in Medicine

Stress, cell senescence and organismal ageing

Open access
de Magalhães, João Pedro, Passos, João F.·2018·Mechanisms of Ageing and Development

Abstract

Cellular senescence was first described by Hayflick and Moorhead in the 1960s as the irreversible arrest of cells following prolonged cultivation. Telomere shortening is the key mechanism driving replicative senescence in human fibroblasts. Later, pioneering work by Olivier Toussaint and others showed that stress plays a major role in the induction of senescence in vitro, a phenomenon known as stress-induced premature senescence or SIPS. It is also now widely accepted that senescence plays a role in vivo. An emerging body of evidence from animal models, and particularly mice, has demonstrated an important role for senescence in several processes such as embryonic development, wound healing, tumour suppression and ageing. However, mostly due to a lack of availability of tissues and specific markers, less is known about the importance of cell senescence in humans. In this review, we summarize some of the key findings in the field of senescence, stress-induced senescence and telomeres. We focus particularly on the role of telomere dysfunction and senescence during the ageing process as well as potential interventions, including pharmacological approaches like telomerase activators and senolytics, to counteract their detrimental effects in ageing and disease.

AI snapshot

Written from the paper’s full text.

TL;DR

This review summarizes cellular senescence, stress-induced premature senescence (SIPS), and telomere dysfunction, arguing that senescence may contribute to organismal ageing while human evidence remains limited. It discusses senolytics and SASP-suppressing drugs as potential interventions and highlights unresolved questions about causality and senescent-cell burden in human tissues.

Key findings

  • Replicative senescence in human fibroblasts is primarily driven by telomere shortening, and ectopic telomerase expression bypasses the senescence-induced arrest. SIPS can be induced by sublethal stress in 3–10 days with no or modest telomere shortening, but persistent telomeric DNA damage can occur independently of telomere length and telomerase, so some SIPS is telomere-dependent.
  • In vivo, telomere shortening occurs in some tissues and shows weak correlations with donor age; comparative data across over 60 mammalian species indicate that smaller, short-lived species tend to have long telomeres and high telomerase, and telomere length is not a limiting factor for lifespan. A human study of over 4000 people over 10 years found no association between telomere length changes and mortality or morbidity.
  • Senescent cells can be beneficial (tumour suppression, wound healing, embryonic development, insulin secretion) or detrimental via the SASP. Genetic clearance of senescent cells in mice delays age-related disorders, protects from cancer, and extends median but not maximum lifespan; senolytics such as dasatinib plus quercetin, ABT-263/ABT-737, and a FOXO4 peptide improve healthspan in mouse models.
  • A major challenge is the absence of a universal senescence marker; SA-β-gal has false positives, and the exact frequency of senescent cells in older tissues and healthy humans remains unknown.

Methods

  • Narrative review; no primary experiments or new data are reported.
  • Synthesizes published literature on cellular senescence, telomeres, SIPS, in vivo mouse models, comparative biology, and pharmacological interventions.
  • Main analysis is qualitative synthesis; no systematic search strategy, inclusion criteria, or meta-analysis is described.

Limitations

  • Stated in paper: lack of human tissues and specific markers limits knowledge of senescence in humans; most in vivo evidence comes from laboratory mice, which have known limitations; the exact frequency of senescent cells in older tissues and healthy humans is unknown; causality of senescence in ageing remains debated; and in vivo rates of occurrence and turnover of senescent cells are poorly understood.
  • Evident from text: as a narrative review, it does not systematically assess bias or quantify effect sizes, and many cited findings are from mouse models with uncertain translation to humans.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1016/j.mad.2017.07.001

Cites

121 of 121 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 43 cited sources checked · 0 supported · 0 flagged

  • Premisenone given

    An emerging body of evidence from animal models, particularly mice, has demonstrated an important role for senescence in several processes such as embryonic development, wound healing, tumour suppression and ageing.

    “An emerging body of evidence from animal models, and particularly mice, has demonstrated an important role for senescence in several processes such as embryonic development, wound healing, tumour suppression and ageing.”
    Quote in the paperNot a substantial claim
  • Premisenone given

    Senescence plays a role in vivo.

    “It is also now widely accepted that senescence plays a role in vivo.”
    Quote in the paperSubstantial claim
  • Premisecitation

    During in vitro ageing, telomeres shorten gradually in each subcultivation.

    “During in vitro ageing, the telomeres shorten gradually in each subcultivation (Harley et al., 1990).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Harley et al., 1990 source

      Not checked in the free run.

  • Premisecitation

    Stress plays a major role in the induction of senescence in vitro, a phenomenon known as stress-induced premature senescence (SIPS).

    “Later, pioneering work by Olivier Toussaint and others showed that stress plays a major role in the induction of senescence in vitro, a phenomenon known as stress-induced premature senescence or SIPS.”
    Quote in the paperSubstantial claim
  • Premisecitation

    With each cell division telomeres shorten progressively due to the end-replication problem.

    “With each cell division telomeres shorten progressively, due to the so called “endreplication problem”.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites de Lange, 2005 source

      Not checked in the free run.

  • May combine two claims. 14
  • Classified as probably not a substantial claim. 5
  • May combine two claims.

    Premisecitation

    As the senescent phenotype develops, most DNA damage is repaired within 24 h; however, damage at telomeric regions remains unrepaired for months, contributing to a persistent and unresolved DNA damage response.

    “As the senescent phenotype develops, most of the DNA damage is repaired within 24 h; however, damage at telomeric regions remains unrepaired for months, contributing to a persistent and unresolved DNA damage response (Hewitt et al., 2012).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Hewitt et al., 2012 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Inhibition of the JAK pathway (using ruxolitinib) suppresses the SASP and alleviates age-related tissue dysfunction.

    “Inhibition of the JAK pathway (using the drug ruxolitinib) has been shown to suppress the SASP and alleviate age-related tissue dysfunction (Xu et al., 2015).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Xu et al., 2015

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Induction of SIPS is characterized initially by DNA damage that occurs randomly all over the genome, and subsequent activation of a DNA damage response.

    “Induction of SIPS is characterized initially by DNA damage, which occurs randomly all over the genome, and subsequent activation of a DDR.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Hewitt et al., 2012 source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationreasoning

    There may be different types of senescence rather than a universal phenotype.

    “Given the multitude of functions of senescent cells, which can be of a positive or negative nature depending on the context, it has been argued that there may be different types of senescence rather than a universal phenotype.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationnone given

    Senescent cells likely accumulate in some tissues and may contribute to organ dysfunction, yet whether they are causal factors in ageing remains a subject of debate.

    “As mentioned above, senescent cells likely accumulate in some tissues and may contribute to organ dysfunction, yet whether they are causal factors in ageing remains a subject of debate.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Interpretationreasoning

    While results on telomere length and mortality support the idea that telomere shortening is a marker of stress and age-related pathology, they do not prove that telomere shortening is a causal factor in ageing.

    “While these results support the idea that telomere shortening is a marker of stress and age-related pathology, they do not prove that telomere shortening is a causal factor in ageing.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    Genetic elimination of p16-positive senescent cells ameliorated atherosclerosis and osteoarthritis in mice.

    “Further highlighting the potential of targeting senescence as a way to counteract age-related diseases, recent work in mice has shown that genetic elimination of p16-positive senescent cells ameliorated atherosclerosis (Childs et al., 2016) and osteoarthritis (Jeon et al., 2017).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites Childs et al., 2016 source

      Not checked in the free run.

    • cites Jeon et al., 2017 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Dasatinib and quercetin (D+Q) when given in combination reduce senescent cells in aged, radiation-exposed and progeroid mice, improving several healthspan parameters.

    “Dasatinib and quercetin (D + Q) when given in combination have been shown to reduce senescent cells in aged, radiation-exposed and progeroid mice, improving several healthspan parameters (Zhu et al., 2015).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Zhu et al., 2015 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    A FOXO4 peptide that perturbs the FOXO4 interaction with p53 clears senescent cells and improves healthspan in aged and progeroid mice.

    “Recently, a FOXO4 peptide that perturbs the FOXO4 interaction with p53 was shown to clear senescent cells and improve healthspan in aged and progeroid mice (Baar et al., 2017).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Baar et al., 2017 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Apart from cell-cycle arrest, senescent cells experience dramatic changes in gene expression, metabolism, epigenome, and have a distinct secretome profile known as the Senescence-Associated Secretory Phenotype (SASP).

    “Apart from cell-cycle arrest, senescent cells have been shown to experience dramatic changes in terms of gene expression, metabolism, epigenome and, importantly, have a distinct secretome profile, known as the Senescence-Associated Secretory Phenotype (SASP) (Coppé et al., 2008).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Coppé et al., 2008 source

      Not checked in the free run.

  • May combine two claims.

    Interpretationreasoning

    While SIPS induced by sub-lethal acute stress is not driven by the shortening of telomeres per se, in some circumstances SIPS can still be classified as a telomere-dependent process.

    “Thus, while SIPS induced by sub-lethal acute stress is not driven by the shortening of telomeres per se, in some circumstances SIPS can still be classified as a telomere-dependent process.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    DNA damage response activation can result in activation of transcription factor p53, leading to expression of p21, which together with activation of p16 are thought to be the major pathways in the induction of senescence.

    “DDR activation can result in the activation of transcription factor p53 which is involved in a variety of processes including DNA repair and apoptosis, but most notably results in expression of cyclindependent kinase inhibitor p21, which together with activation of p16, are thought to be the major pathways in the induction of senescence (Beauséjour et al., 2003).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Beauséjour et al., 2003 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Inhibitors of the BCL-2 family, such as ABT-263 and ABT-737, reduce senescent hematopoietic and muscle stem cells in radiation-exposed and aged mice and senescent cells in the lung and epidermis.

    “Inhibitors of the BCL-2 family, such as ABT-263 (navitoclax) and ABT-737, have been shown to reduce senescent hematopoietic and muscle stem cells in radiation-exposed and aged mice (Chang et al., 2016) and senescent cells in the lung and epidermis (Yosef et al., 2016).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites Chang et al., 2016 source

      Not checked in the free run.

    • cites Yosef et al., 2016 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    A chronic SASP is able to induce senescence in adjacent young cells, contributing to tissue dysfunction and paradoxically tumorigenesis.

    “It has been shown that a “chronic” SASP is able to induce senescence in adjacent young cells, contributing to tissue dysfunction (Acosta et al., 2013;Jurk et al., 2014) and paradoxically tumorigenesis (Krtolica et al., 2001).”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites Acosta et al., 2013 source

      Not checked in the free run.

    • cites Jurk et al., 2014

      Not checked in the free run.

    • cites Krtolica et al., 2001 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Inhibition of the mTOR pathway (using rapamycin), which extends lifespan in a variety of model organisms, is an effective SASP suppressor.

    “For instance, inhibition of the mTOR pathway (using the drug rapamycin), which has been shown to extend lifespan in a variety of model organisms (de Magalhaes et al., 2012;Harrison et al., 2009), is an effective SASP suppressor (Correia-Melo et al., 2016;Herranz et al., 2015;Laberge et al., 2015).”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites de Magalhaes et al., 2012 source

      Not checked in the free run.

    • cites Harrison et al., 2009 source

      Not checked in the free run.

    • cites Correia-Melo et al., 2016 source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Interpretationreasoning

    Given that the SASP is required in certain physiological contexts, it is still unclear whether targeting the SASP would be a viable anti-ageing therapy.

    “However, given the fact that the SASP is required in certain physiological contexts, it is still unclear whether targeting the SASP would be a viable anti-ageing therapy.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S4 (based).

    Interpretationnone given

    We still know very little about in vivo rates of occurrence and turnover of senescent cells.

    “Finally, we still know very little about in vivo rates of occurrence and turnover of senescent cells.”
    Quote in the paperNot a substantial claim
  • Probably not a substantial claim: may not pass S3 (load-bearing).

    Premisecitation

    Our knowledge about senescence in vivo has increased exponentially in the last decade.

    “While our knowledge about senescence in vivo has increased exponentially in the last decade”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites de Magalhaes, 2014 source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S4 (based).

    Interpretationnone given

    Stress and various insults are possible contributors to senescence in vivo.

    “it is possible that stress and various insults are contributors to senescence in vivo.”
    Quote in the paperNot a substantial claim
19 of 19
  • The paper relies on this without support.

    Findings from mouse models of senescence and ageing are informative about human ageing.

    “In this review, we summarize some of the key findings in the field of senescence, stress-induced senescence and telomeres.We focus particularly on the role of telomere dysfunction and senescence during the ageing process as well as potential interventions, including pharmacological approaches like telomerase activators and senolytics, to counteract their detrimental effects in ageing and disease.”
1 of 1

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?

  • Senotherapeutic drugs could potentially treat a variety of conditions primarily or secondarily mediated by senescent cell accumulation.

    “The use of senotherapeutic drugs could potentially be effective in treating a variety of conditions primarily or secondarily mediated by accumulation of senescent cells [6, 33, 67–87].”

    From Reducing Senescent Cell Burden in Aging and Disease (2020) · cites this paper as [68]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

Each contradiction between two passages listed here was confirmed by an independent check.

  • Conflicting conclusions about telomere length and species longevity

    Minor

    The paper first says there is no connection between mean telomere length and mammalian species longevity, but later concludes that longevity is strongly associated with the evolution of short telomeres.

1 of 1

Cites

Flagged first, then by citations

1 of the 122 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
de Magalhães, J. P., & Passos, J. F.
Affiliations
Newcastle University (GB)
Venue
Mechanisms of Ageing and Development
Publisher
Elsevier BV
Published
2018-03
Volume
170
Pages
2-9
ISSN
0047-6374 (ISSN-L)
OpenAlex
W2733273049
Cited by
316
References
122
Citations by year
2026: 17 · 2025: 37 · 2024: 28 · 2023: 31 · 2022: 43 · 2021: 44 · 2020: 55 · 2019: 40 · 2018: 17 · 2017: 3
FWCI
3.86
Type
journal article
Language
en
Open access
Locations
  • Mechanisms of Ageing and Development (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Newcastle University ePrints (Newcastle Univesity) (cc-by)
Funders
  • Wellcome Trust (104978, 104978/Z/14/Z, RPG-2016-015)
  • Methuselah Foundation
  • Leverhulme Trust (RPG‐2016‐015)
  • Medical Research Council (MR/L016354/1)
  • Biotechnology and Biological Sciences Research Council (BB/K017314/1, BB/H022384/1)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
Keywords
cellular senescence, stress-induced premature senescence, telomere shortening, telomere dysfunction, replicative senescence, senolytics, telomerase activators, tumor suppression, wound healing, embryonic development
MeSH terms
Aging, Humans, Neoplasms, Stress, Physiological, Wound Healing, Cellular Senescence, Embryonic Development, Telomere Homeostasis

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.

Claims read by deepseek-v4.1-flash under definition version 3 (extract-v3) on 2026-10-06.

Classified by jev-1.13-20260917 (gold-guideline-v0.2) on 2026-10-06.

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