Cited by 84Telomeres, Telomerase, and SenescenceCardiovascular Health and Disease PreventionGenetics, Aging, and Longevity in Model Organisms

Cellular Senescence Contributes to Large Elastic Artery Stiffening and Endothelial Dysfunction With Aging: Amelioration With Senolytic Treatment

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Clayton, Zachary S., Rossman, Matthew J., Mahoney, Sophia A., Venkatasubramanian, Ravinandan, Maurer, Grace S., Hutton, David A., VanDongen, Nicholas S., Greenberg, Nathan T. +7 more·2023·Hypertension

Abstract

BACKGROUND: Here, we assessed the role of cellular senescence and the senescence associated secretory phenotype (SASP) in age-related aortic stiffening and endothelial dysfunction. METHODS: We studied young (6-8 mo) and old (27-29 mo) p16-3MR mice, which allows for genetic-based clearance of senescent cells with ganciclovir (GCV). We also treated old C57BL/6N mice with the senolytic ABT-263. RESULTS: In old mice, GCV reduced aortic stiffness assessed by aortic pulse wave velocity (PWV; 477±10 vs. 382±7 cm/s, P <0.05) to young levels (old-GCV vs. young-vehicle, P =0.35); ABT-263 also reduced aortic PWV in old mice (446±9 to 356±11 cm/s, P <0.05). Aortic adventitial collagen was reduced by GCV ( P <0.05) and ABT-263 ( P =0.12) in old mice. To show an effect of the circulating SASP, we demonstrated that plasma exposure from Old-vehicle p16-3MR mice, but not from Old-GCV mice, induced aortic stiffening assessed ex vivo (elastic modulus; P <0.05). Plasma proteomics implicated glycolysis in circulating SASP-mediated aortic stiffening. In old p16-3MR mice, GCV increased endothelial function assessed via peak carotid artery endothelium-dependent dilation (EDD; Old-GCV, 94±1% vs. Old-vehicle, 84±2%, P <0.05) to young levels (Old-GCV vs. young-vehicle, P =0.98), and EDD was higher in old C57BL/6N mice treated with ABT-263 vs. vehicle (96±1% vs. 82±3%, P <0.05). Improvements in endothelial function were mediated by increased nitric oxide (NO) bioavailability ( P <0.05) and reduced oxidative stress ( P <0.05). Circulating SASP factors related to NO signaling were associated with greater NO-mediated EDD following senescent cell clearance. CONCLUSIONS: Cellular senescence and the SASP contribute to vascular aging and senolytics hold promise for improving age-related vascular function.

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Crossref · 10.1161/hypertensionaha.123.21392

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  • scRNA-seq data of all aortic cells point to a role of senescent VSMCs in ECM remodeling and organization, consistent with Clayton et al.

    “However, the scRNA-seq data of all aortic cells point to a role of senescent VSMCs in ECM remodeling and organization, consistent with the findings of Clayton et al.47”

    From Single-cell and spatial transcriptomics map senescent vascular cells in arterial remodeling during atherosclerosis in mice (2025) · cites this paper as [47]

    The Discussion (page unavailable) links cellular senescence to age-related changes in the aortic extracellular matrix, and the aortic-stiffening results report reduced adventitial collagen after senescent-cell clearance. Those findings are consistent with a role in ECM remodeling, but Clayton et al. do not identify senescent VSMCs as the responsible cells. The scRNA-seq finding is the citing authors’ own, not a finding attributed to Clayton et al. (LLM, conf=0.88)

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  • A recent study attributed vascular stiffening to accumulation of senescent vascular cells in naturally aged mice.

    “This finding is further supported by a recent study that attributed vascular stiffening to the accumulation of senescent vascular cells in naturally aged mice47.”

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Authors
Clayton, Z. S., Rossman, M. J., Mahoney, S. A., Venkatasubramanian, R., Maurer, G. S., Hutton, D. A., VanDongen, N. S., Greenberg, N. T., Longtine, A. G., Ludwig, K. R., Brunt, V. E., LaRocca, T. J., Campisi, J., Melov, S., & Seals, D. R.
Affiliations
  • University of Colorado Boulder (US)
  • Colorado State University (US)
  • Buck Institute for Research on Aging (US)
Venue
Hypertension
Published
2023-10
Volume
80
Issue
10
Pages
2072-2087
ISSN
  • 0194-911X (ISSN-L)
  • 1524-4563
OpenAlex
W4385969491
Cited by
84
References
79
Citations by year
2026: 29 · 2025: 25 · 2024: 25 · 2023: 5
FWCI
14.84
Type
journal article
Language
en
Open access
Locations
  • Hypertension (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Aging (R01AG055822)
  • National Heart, Lung, and Blood Institute (K99HL159241, F32HL151022, F31HL165885)
  • National Institute of Diabetes and Digestive and Kidney Diseases (K01DK115524, T32DK007135)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Health and Disease Prevention
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
ENCE, senolytics, senescence-associated secretory phenotype, aortic stiffness, endothelial dysfunction, aging, ganciclovir, navitoclax, pulse wave velocity, nitric oxide bioavailability, oxidative stress, endothelium-dependent dilation, glycolysis
MeSH terms
Senotherapeutics, Aging, Aniline Compounds, Animals, Arteries, Mice, Inbred C57BL, Nitric Oxide, Sulfonamides, Vascular Diseases, Cellular Senescence, Mice, Pulse Wave Analysis

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