Cited by 43Hippo pathway signaling and YAP/TAZTelomeres, Telomerase, and SenescenceAngiogenesis and VEGF in Cancer

Effects of age-dependent changes in cell size on endothelial cell proliferation and senescence through yap1

Open access
Mammoto, Tadanori, Torisawa, Yu-Suke, Muyleart, Megan, Hendee, Kathryn, Anugwom, Charles, Gutterman, David, Mammoto, Akiko·2019·Aging

Abstract

Angiogenesis - the growth of new blood capillaries- is impaired in aging animals. Biophysical factors such as changes in cell size control endothelial cell (EC) proliferation and differentiation. However, the effects of aging on EC size and the mechanism by which changes in cell size control age-dependent decline in EC proliferation are largely unknown. Here, we have demonstrated that aged ECs are larger than young ECs and that age-dependent increases in EC size control EC proliferation and senescence through CDC42-Yes-associated protein (YAP1) signaling. Reduction of aged EC size by culturing on single-cell sized fibronectin-coated smaller islands decreases CDC42 activity, stimulates YAP1 nuclear translocation and attenuates EC senescence. Stimulation of YAP1 or inhibition of CDC42 activity in aged ECs also restores blood vessel formation. Age-dependent changes in EC size and/or CDC42 and YAP1 activity may be the key control point of age-related decline in angiogenesis.

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Crossref · 10.18632/aging.102236

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  • Senescent cells generally demonstrate an enlarged and flattened cell morphology, expanded nucleoli, enhanced SA-β-gal activity, telomere shortening, elevation of p16 or p21, macromolecular damage and metabolism dysfunction.

    “Senescent cells generally demonstrate an enlarged and flattened cell morphology [27] and expanded nucleoli [28,29], enhanced senescence-associated beta-galactosidase (SA-β-gal) activity [30], telomere shortening, elevation of the cyclin-dependent kinase inhibitor p16 [11,31] or p21 [32], macromolecular damage and metabolism dysfunction [1].”

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Authors
Mammoto, T., Torisawa, Y.-S., Muyleart, M., Hendee, K., Anugwom, C., Gutterman, D., & Mammoto, A.
Affiliations
  • Medical College of Wisconsin (US)
  • Kyoto University (JP)
Corresponding author
  • Mammoto, Tadanori
  • Mammoto, Akiko
Venue
Aging
Published
2019-09-05
Volume
11
Issue
17
Pages
7051-7069
ISSN
1945-4589 (ISSN-L)
OpenAlex
W2971392559
Cited by
43
References
78
Citations by year
2026: 3 · 2025: 11 · 2024: 5 · 2023: 11 · 2022: 6 · 2021: 2 · 2020: 5
FWCI
1.72
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Aging (publishedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
  • American Heart Association (18TPA34170129)
  • Japan Society for the Promotion of Science (17H02082)
  • National Institute on Aging (R21AG062893, R21AG054830)
  • National Heart, Lung, and Blood Institute (R01HL139638, R01HL142578, R01HL135901)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Angiogenesis and VEGF in Cancer
Keywords
endothelial cell size, endothelial cell proliferation, cellular senescence, YAP, Cdc42, angiogenesis, YAP1 nuclear translocation
MeSH terms
YAP-Signaling Proteins, Adult, Aging, Animals, Female, Humans, Male, Mice, Inbred C57BL, Middle Aged, Transcription Factors, Cell Cycle Proteins, Neovascularization, Physiologic, cdc42 GTP-Binding Protein, Endothelial Cells, Cell Size, Adaptor Proteins, Signal Transducing, Primary Cell Culture

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