Cited by 238Barrier Structure and Function StudiesGenetics, Aging, and Longevity in Model OrganismsNeuroinflammation and Neurodegeneration Mechanisms

Brain Endothelial Cells Are Exquisite Sensors of Age-Related Circulatory Cues

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Chen, Michelle B., Yang, Andrew C., Yousef, Hanadie, Lee, Davis, Chen, Winnie, Schaum, Nicholas, Lehallier, Benoit, Quake, Stephen R. +1 more·2020·Cell Reports

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Abstract

Brain endothelial cells (BECs) are key constituents of the blood-brain barrier (BBB), protecting the brain from pathogens and restricting access of circulatory factors. Yet, because circulatory proteins have prominent age-related effects on adult neurogenesis, neuroinflammation, and cognitive function in mice, we wondered whether BECs receive and potentially relay signals between the blood and brain. Using single-cell RNA sequencing of hippocampal BECs, we discover that capillary BECs-compared with arterial and venous BECs-undergo the greatest transcriptional changes in normal aging, upregulating innate immunity and oxidative stress response pathways. Short-term infusions of aged plasma into young mice recapitulate key aspects of this aging transcriptome, and remarkably, infusions of young plasma into aged mice exert rejuvenation effects on the capillary transcriptome. Together, these findings suggest that the transcriptional age of BECs is exquisitely sensitive to age-related circulatory cues and pinpoint the BBB itself as a promising therapeutic target to treat brain disease.

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Crossref · 10.1016/j.celrep.2020.03.012

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  • Aging-related cell states exhibited upregulation of genes (e.g., B2m and Trem2 in Micro-3, Xdh in Endo-3, Gfap and C4b in Astro-2) previously shown to be enriched in activated microglia, endothelial cells, and astrocytes.

    “These aging-related cell states exhibit upregulation of genes (e.g., B2m and Trem2 in Micro-3, Xdh in Endo-3, and Gfap and C4b in Astro-2) (Figure 2C) that have been previously shown to be enriched in microglia, endothelial cells, and astrocytes activated by inflammation and/or aging.”

    From Molecular and spatial signatures of mouse brain aging at single-cell resolution (2023) · cites this paper as [30]

    The Results section, “Vessel Segments Exhibit Divergent Aging Transcriptomic Signatures” (page unavailable), reports B2m upregulation in aged brain endothelial cells and after inflammatory LPS treatment. Our copy does not establish the cited association of Xdh with activated endothelial cells or the stated microglial and astrocytic gene associations; the Micro-3, Endo-3, and Astro-2 states are identified by the citing paper’s own Figure 2C. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Previous transcriptomic studies have revealed widespread changes in cell state in specific cell types with age, with many highlighting increased inflammation as a key aspect of brain aging.

    “Previous transcriptomic studies have revealed widespread changes in cell state in specific cell types with age, with many of these studies highlighting a role for increased inflammation as a key aspect of brain aging.17–20,25–30”
  • The number of samples for the single-cell sequencing studies was set using prior studies and preliminary experiments that confirmed sufficient BECs would be available for statistical analysis.

    “To determine the samples size for the single-cell sequencing studies, we used previous studies13,26 and performed preliminary studies to confirm that we will obtain enough BECs for statistical analysis (not included in the manuscript).”
  • Single-cell RNAseq studies of brain endothelial cell aging showed that infusion of aged plasma can accelerate while young plasma can reverse aging as a function of the transcriptome.

    “Indeed, single cell RNAseq studies of brain endothelial cell aging showed that infusion of aged plasma can accelerate while young plasma can reverse aging as a function of the transcriptome.70”

    From Asynchronous, contagious and digital aging (2021) · cites this paper as [70]

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Authors
Chen, M. B., Yang, A. C., Yousef, H., Lee, D., Chen, W., Schaum, N., Lehallier, B., Quake, S. R., & Wyss-Coray, T.
Affiliations
  • Stanford University (US)
  • Stanford Medicine (US)
Corresponding author
Quake, Stephen R.
Venue
Cell Reports
Publisher
Elsevier BV
Published
2020-03
Volume
30
Issue
13
Pages
4418-4432.e4
ISSN
2211-1247 (ISSN-L)
OpenAlex
W3014940784
Cited by
233
References
92
Citations by year
2026: 34 · 2025: 42 · 2024: 28 · 2023: 31 · 2022: 43 · 2021: 42 · 2020: 11 · 2019: 2
FWCI
11.34
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by-nc-nd)
  • SSRN Electronic Journal (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by-nc-nd)
Funders
  • National Institute on Aging (T32-AG0047126, F32-AG051330, R01-AG059694, DP1-AG053015)
  • Wu Tsai Neurosciences Institute, Stanford University
  • U.S. Department of Veterans Affairs (UL1 TR001085)
Topics
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
brain endothelial cells, blood-brain barrier, aging, plasma transfusion, capillary endothelial cells, hippocampus, innate immunity, oxidative stress response, transcriptome, neuroinflammation, adult neurogenesis, cognitive function
MeSH terms
Aging, Animals, Arteries, Blood Circulation, Brain, Capillaries, Lipopolysaccharides, Male, Mice, Inbred C57BL, Transcription, Genetic, Veins, Endothelial Cells, Transcriptome

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