Cited by 263Barrier Structure and Function StudiesTelomeres, Telomerase, and SenescenceDrug Transport and Resistance Mechanisms

Vascular Cell Senescence Contributes to Blood–Brain Barrier Breakdown

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Yamazaki, Yu, Baker, Darren J., Tachibana, Masaya, Liu, Chia-Chen, van Deursen, Jan M., Brott, Thomas G., Bu, Guojun, Kanekiyo, Takahisa·2016·Stroke

Abstract

Background and Purpose—: Age-related changes in the cerebrovasculature, including blood–brain barrier (BBB) disruption, are emerging as potential risks for diverse neurological conditions. Because the accumulation of senescent cells in tissues is increasingly recognized as a critical step leading to age-related organ dysfunction, we evaluated whether senescent vascular cells are associated with compromised BBB integrity. Methods—: Effects of vascular cell senescence on tight junction and barrier integrity were studied using an in vitro BBB model, composed of endothelial cells, pericytes, and astrocytes. In addition, tight junction coverage in microvessels and BBB integrity in BubR1 hypomorphic (BubR1 H/H ) mice, which display senescence cell-dependent phenotypes, were examined. Results—: When an in vitro BBB model was constructed with senescent endothelial cells and pericytes, tight junction structure and barrier integrity (evaluated by transendothelial electric resistance and tracer efflux assay using sodium fluorescein and Evans blue-albumin were significantly impaired. Endothelial cells and pericytes from BubR1 H/H mice had increased senescent-associated β-galactosidase activity and p16 INK4a expression, demonstrating an exacerbation of senescence. The coverage by tight junction proteins in the cortical microvessels were reduced in BubR1 H/H mice, consistent with a compromised BBB integrity from permeability assays. Importantly, the coverage of microvessels by end-feet of aquaporin 4–immunoreactive astrocytes was not altered in the cortex of the BubR1 H/H mice. Conclusions—: Our results indicate that accumulation of senescent vascular cells is associated with compromised BBB integrity, providing insights into the mechanism of BBB disruption related to biological aging.

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Crossref · 10.1161/strokeaha.115.010835

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  • Accumulation of senescent endothelial cells is associated with impaired tight junction structure and compromised blood-brain barrier integrity.

    “Accumulation of senescent endothelial cells is associated with impaired tight junction structure and compromised blood-brain barrier integrity [129] and it is linked to Sirt1 downregulation in senescent endothelial cells [130].”

    From Ageing, Cellular Senescence and Neurodegenerative Disease (2018) · cites this paper as [129]

  • BUBR1 hypomorphic mice display blood-brain barrier leakage that correlates with premature senescence of neural endothelial cells and pericytes, which become SA β-gal positive and express p16.

    “BUBR1 hypomorphic mice display leakage across the BBB that correlates with a propensity for neural endothelial cells and pericytes to prematurely senesce, become SA β-gal positive, and express p16 INK4A (66).”
  • Senescent endothelial cells may disrupt the integrity of the blood-brain barrier, an effect associated with age-related cognitive decline.

    “Lastly, senescent endothelial cells may disrupt the integrity of the blood-brain barrier [1], an effect which has been associated with age-related cognitive decline [150].”

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Authors
Yamazaki, Y., Baker, D. J., Tachibana, M., Liu, C.-C., van Deursen, J. M., Brott, T. G., Bu, G., & Kanekiyo, T.
Affiliations
  • Mayo Clinic (US)
  • From the Departments of Neuroscience (Y.Y., M.T., C-C.L., G.B., T.K.) and Neurology (T.G.B.), Mayo Clinic, Jacksonville, FL; and Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN (D.J.B., J.M.v.D.).
Venue
Stroke
Published
2016-04
Volume
47
Issue
4
Pages
1068-1077
ISSN
  • 0039-2499 (ISSN-L)
  • 1524-4628
OpenAlex
W2273856223
Cited by
263
References
45
Citations by year
2026: 30 · 2025: 33 · 2024: 30 · 2023: 35 · 2022: 33 · 2021: 30 · 2020: 31 · 2019: 15 · 2018: 12 · 2017: 9 · 2016: 3 · 2015: 1 · 2012: 1
FWCI
7.12
Type
journal article
Language
en
Open access
Locations
  • Stroke (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Rare & Special e-Zone (The Hong Kong University of Science and Technology) (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
Funders
  • Mochida Memorial Foundation for Medical and Pharmaceutical Research
  • National Institutes of Health
  • National Institute on Aging (RF1AG051504, R01AG027924, RF1AG046205, R01AG046205, R01AG035355, P50AG016574)
  • National Cancer Institute (R01CA096985)
  • National Institute of Neurological Disorders and Stroke (P01NS074969)
Topics
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Health Sciences › Medicine › Oncology › Drug Transport and Resistance Mechanisms
Keywords
blood-brain barrier disruption, tight junctions, endothelial cells, pericytes, astrocytes, senescence-associated β-galactosidase, p16INK4a, blood-brain barrier permeability, aging, cerebral vasculature, aquaporin-4
MeSH terms
Aging, Animals, Astrocytes, beta-Galactosidase, Blood-Brain Barrier, Brain, Capillary Permeability, Cellular Senescence, Tight Junctions, Cyclin-Dependent Kinase Inhibitor p16, Pericytes, Endothelial Cells, Mice, Aquaporin 4

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