Cited by 460Telomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model OrganismsSirtuins and Resveratrol in Medicine

Defined p16High Senescent Cell Types Are Indispensable for Mouse Healthspan

Open access
Grosse, Laurent, Wagner, Nicole, Emelyanov, Alexander, Molina, Clement, Lacas-Gervais, Sandra, Wagner, Kay-Dietrich, Bulavin, Dmitry V.·2020·Cell Metabolism

Abstract

The accumulation of senescent cells can drive many age-associated phenotypes and pathologies. Consequently, it has been proposed that removing senescent cells might extend lifespan. Here, we generated two knockin mouse models targeting the best-characterized marker of senescence, p16 Ink4a. Using a genetic lineage tracing approach, we found that age-induced p16 High senescence is a slow process that manifests around 10-12 months of age. The majority of p16 High cells were vascular endothelial cells mostly in liver sinusoids (LSECs), and to lesser extent macrophages and adipocytes. In turn, continuous or acute elimination of p16 High senescent cells disrupted blood-tissue barriers with subsequent liver and perivascular tissue fibrosis and health deterioration. Our data show that senescent LSECs are not replaced after removal and have important structural and functional roles in the aging organism. In turn, delaying senescence or replacement of senescent LSECs could represent a powerful tool in slowing down aging.

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Crossref · 10.1016/j.cmet.2020.05.002

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  • Emerging evidence indicates that targeted senolysis in mice may be severely toxic to the liver and perivascular tissue, due to removal of p16-expressing endothelial cells, adipocytes, and macrophages in aged organs, all of which have structural roles.

    “Lastly, emerging evidence suggests that targeted senolysis in mice may be profoundly toxic in the liver and perivascular tissue, because of the eradication of p16-expressing endothelial cells, adipocytes and macrophages in aged organs, which all have structural functions254.”

    From Cellular senescence in ageing: from mechanisms to therapeutic opportunities (2021) · cites this paper as [254]

    Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

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  • Senescence in non-mammals impacts many aspects of organismal physiology, from development to regeneration and ageing.

    “Senescence in non-mammals impacts on many aspects of organismal physiology, from development116,122 to regeneration (e.g., salamander limbs117, zebrafish fins118, whole hydra polyps120) and ageing119,123,124.”

    From Guidelines for minimal information on cellular senescence experimentation in vivo (2024) · cites this paper as [117]

    The paper’s opening summary (page unavailable) reports that age-induced senescence affects health in mice, supporting the ageing aspect of the citation. Mice are mammals, however, so it does not support the sentence’s claim specifically about non-mammals. (LLM, conf=0.88)

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  • Senolytic treatment to eliminate senescent cells has been successfully applied in fish and salamanders, enabling both functional assessment and validation of senescence through targeted reduction.

    “This has been successfully applied in fish118 and salamanders117,126, enabling both the functional assessment and validation of senescence through targeted reduction.”

    From Guidelines for minimal information on cellular senescence experimentation in vivo (2024) · cites this paper as [117]

    The section on dasatinib and quercetin reports targeted reduction of p16-high macrophages in mice, and the Discussion assesses consequences of removing other senescent cell types. Neither passage reports senolytic treatment in fish or salamanders, so the species-specific claim is unsupported by this source (page numbers unavailable in our copy). (LLM, conf=0.83)

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  • Excessive clearance of senescent cells has been reported to accompany the dilemma faced by cells that cannot be replenished in time, although Quercetin + Dasatinib clears mainly p16 macrophages.

    “Excessive clearance of senescent cells (especially for senescent liver sinusoidal endothelial cells or adipocytes) has also been reported to accompany the dilemma faced by cells that cannot be replenished in time, although Quercetin + Dasatinib clears mainly p16 macrophages.348”

    From Inflammation and aging: signaling pathways and intervention therapies (2023) · cites this paper as [348]

    The section on removal of p16High cells reports that senescent liver endothelial cells were not replaced after removal and that fibrosis developed instead (page not available). The D+Q section reports that dasatinib plus quercetin primarily removed p16High macrophages, not LSECs or adipocytes. The cited passages do not establish that senescent adipocytes likewise cannot be replenished, so that part of the citing sentence is unsupported. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • A recent report shows that removing senescent cells expressing high p16 can lead to fibrosis in mice, whereas small-molecule senolytics appear to reduce fibrosis in several mouse tissues.

    “This is in agreement with a recent report showing that the removal of senescent cells expressing high levels of p16INK4a can lead to fibrosis in mice101, whereas small-molecule senolytics appear to reduce fibrosis in several mouse tissues22,71,73,75,102.”

    From Cellular senescence and senolytics: the path to the clinic (2022) · cites this paper as [101]

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Authors
Grosse, L., Wagner, N., Emelyanov, A., Molina, C., Lacas-Gervais, S., Wagner, K.-D., & Bulavin, D. V.
Affiliations
Centre National de la Recherche Scientifique (FR)
Corresponding author
Bulavin, Dmitry V.
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2020-07
Volume
32
Issue
1
Pages
87-99.e6
ISSN
1550-4131 (ISSN-L)
OpenAlex
W3028992072
Cited by
460
References
44
Citations by year
2026: 73 · 2025: 84 · 2024: 80 · 2023: 80 · 2022: 60 · 2021: 62 · 2020: 21
FWCI
33.54
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, cc-by-nc)
  • HAL (submittedVersion, other-oa)
Funders
Agence Nationale de la Recherche
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, p16, liver sinusoidal endothelial cells, healthspan, aging, senolytics, liver fibrosis, perivascular fibrosis, blood-tissue barrier, mouse model
MeSH terms
Aging, Animals, Cells, Cultured, Female, Male, Mice, Inbred C57BL, Mice, Transgenic, Cellular Senescence, Cyclin-Dependent Kinase Inhibitor p16, Endothelial Cells, Mice

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