Cited by 206Nuclear Structure and FunctionTelomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model Organisms

Oxidative stress induces an ATM‐independent senescence pathway through p38 MAPK‐mediated lamin B1 accumulation

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Barascu, Aurelia, Le Chalony, Catherine, Pennarun, Gaëlle, Genet, Diane, Imam, Naima, Lopez, Bernard, Bertrand, Pascale·2012·The EMBO Journal

Abstract

We report crosstalk between three senescence-inducing conditions, DNA damage response (DDR) defects, oxidative stress (OS) and nuclear shape alterations. The recessive autosomal genetic disorder Ataxia telangiectasia (A-T) is associated with DDR defects, endogenous OS and premature ageing. Here, we find frequent nuclear shape alterations in A-T cells, as well as accumulation of the key nuclear architecture component lamin B1. Lamin B1 overexpression is sufficient to induce nuclear shape alterations and senescence in wild-type cells, and normalizing lamin B1 levels in A-T cells reciprocally reduces both nuclear shape alterations and senescence. We further show that OS increases lamin B1 levels through p38 Mitogen Activated Protein kinase activation. Lamin B1 accumulation and nuclear shape alterations also occur during stress-induced senescence and oncogene-induced senescence (OIS), two canonical senescence situations. These data reveal lamin B1 as a general molecular mediator that controls OS-induced senescence, independent of established Ataxia Telangiectasia Mutated (ATM) roles in OIS.

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Crossref · 10.1038/emboj.2011.492

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83 of 83 references verified0 citation errors · 0 not checkable

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  • Reduction of LMNB1 has been confirmed in various senescent cell types.

    “Since then, several studies have confirmed the reduction of LMNB1 in various senescent cell types (Barascu et al. 2012; Freund et al. 2012; Dreesen et al. 2013; Sadaie et al. 2013; Shah et al. 2013).”

    From Cellular senescence and its effector programs (2014) · cites this paper as Barascu et al. 2012

    Barascu et al. report the opposite pattern in the cells they studied: the Discussion (p. 12) says persistent oxidative stress causes lamin B1 accumulation that leads to senescence. The A-T cell results (p. 6) further show that reducing lamin B1 decreased the frequency of senescent cells, rather than documenting LMNB1 reduction across senescent cell types. (LLM, conf=0.88)

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  • Other DNA lesions, such as those from oxidative stress, may also drive senescence.

    “Other DNA lesions—such as those caused by oxidative stress—may also drive cells into senescence (35–38).”

    From Aging, Cellular Senescence, and Cancer (2013) · cites this paper as [35]

    The paper’s opening summary (p. 1) identifies oxidative stress as a senescence-inducing condition, and the Discussion (p. 10) describes a pathway by which reactive oxygen species lead to senescence. It does not establish that DNA lesions caused by oxidative stress drive that process; it describes a p38 MAPK–lamin B1 pathway instead. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Oxidative stress has been ensured as a crucial factor for cellular senescence through shortening telomere and causing DNA double-strand breaks.

    “Oxidative stress has been ensured as a crucial factor for cellular senescence through shortening telomere and causing DNA double-strand breaks.209,210”

    From Inflammation and aging: signaling pathways and intervention therapies (2023) · cites this paper as [209]

    The Introduction (p. 1) and Discussion (p. 10) support oxidative stress as a cause of cellular senescence. They do not establish that it does so by shortening telomeres or causing DNA double-strand breaks; the Discussion instead describes a p38 MAPK–lamin B1 pathway and says A-T cell senescence is not completely due to telomere shortening. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Overexpression of LMNB1 either delays or enhances senescence or exhibits minimal effect on proliferation, depending on study.

    “Compared with LMNB1 depletion, phenotypes induced by ectopic LMNB1 were more heterogeneous between studies: Overexpression of LMNB1 either delays (Shimi et al. 2011) or enhances senescence (Barascu et al. 2012; Dreesen et al. 2013) or exhibits a minimal effect on proliferation (Sadaie et al. 2013).”

    From Cellular senescence and its effector programs (2014) · cites this paper as Barascu et al. 2012

  • Increased levels of LMNB1 are associated with ROS up-regulation and senescence.

    “Similarly, Barascu et al. (2012) showed that increased levels of LMNB1 are associated with ROS up-regulation and senescence.”

    From Cellular senescence and its effector programs (2014) · cites this paper as Barascu et al. 2012

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Authors
Barascu, A., Le Chalony, C., Pennarun, G., Genet, D., Imam, N., Lopez, B., & Bertrand, P.
Affiliations
Centre National de la Recherche Scientifique (FR)
Corresponding author
Bertrand, Pascale
Venue
The EMBO Journal
Published
2012-01-13
Volume
31
Issue
5
Pages
1080-1094
ISSN
  • 0261-4189 (ISSN-L)
  • 1460-2075
OpenAlex
W2160703969
Cited by
206
References
84
Citations by year
2026: 6 · 2025: 14 · 2024: 12 · 2023: 8 · 2022: 11 · 2021: 16 · 2020: 17 · 2019: 9 · 2018: 12 · 2017: 12 · 2016: 17 · 2015: 15 · 2014: 24 · 2013: 15 · 2012: 18
FWCI
9.25
Type
journal article
Language
en
Open access
Locations
  • The EMBO Journal (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nuclear Structure and Function
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
oxidative stress, cellular senescence, ATM, lamin B1, p38 MAPK, ataxia telangiectasia, DNA damage response, stress-induced senescence, oncogene-induced senescence, nuclear organization, premature aging
MeSH terms
Aging, Cells, Cultured, Humans, Signal Transduction, Oxidative Stress, Lamin Type B, p38 Mitogen-Activated Protein Kinases

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