Cited by 106Barrier Structure and Function StudiesNeurological Disease Mechanisms and TreatmentsNeuroinflammation and Neurodegeneration Mechanisms

Interplay between Brain Pericytes and Endothelial Cells in Dementia

Open access
Procter, Tessa V., Williams, Anna, Montagne, Axel·2021·The American Journal of Pathology

Abstract

Prevalence of dementia continues to increase because of the aging population and limited treatment options. Cerebral small vessel disease and Alzheimer disease are the two most common causes of dementia with vascular dysfunction being a large component of both their pathophysiologies. The neurogliovascular unit, in particular the blood-brain barrier (BBB), is required for maintaining brain homeostasis. A complex interaction exists among the endothelial cells, which line the blood vessels and pericytes, which surround them in the neurogliovascular unit. Disruption of the BBB in dementia precipitates cognitive decline. This review highlights how dysfunction of the endothelial-pericyte crosstalk contributes to dementia, and focuses on cerebral small vessel disease and Alzheimer disease. It also examines loss of pericyte coverage and subsequent downstream changes. Furthermore, it examines how disruption of the intimate crosstalk between endothelial cells and pericytes leads to alterations in cerebral blood flow, transcription, neuroinflammation, and transcytosis, contributing to breakdown of the BBB. Finally, this review illustrates how cumulation of loss of endothelial-pericyte crosstalk is a major driving force in dementia pathology.

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Registry

Crossref · 10.1016/j.ajpath.2021.07.003

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121 of 121 references verified0 citation errors · 0 not checkable

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  • Mounting evidence suggests vascular pathologic mechanisms are involved in development of AD.

    “In recent years, mounting evidence suggested that vascular pathologic mechanisms are involved in the development of AD.133”

    From Role of neuroinflammation in neurodegeneration development (2023) · cites this paper as [133]

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Authors
Procter, T. V., Williams, A., & Montagne, A.
Affiliations
  • MRC Centre for Regenerative Medicine (GB)
  • UK Dementia Research Institute (GB)
Corresponding author
Montagne, Axel
Venue
The American Journal of Pathology
Publisher
Elsevier BV
Published
2021-11
Volume
191
Issue
11
Pages
1917-1931
ISSN
0002-9440 (ISSN-L)
OpenAlex
W3186085265
Cited by
106
References
122
Citations by year
2026: 19 · 2025: 24 · 2024: 23 · 2023: 24 · 2022: 12 · 2021: 4
FWCI
1.84
Type
journal article
Language
en
Open access
Locations
  • American Journal Of Pathology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, cc-by-nc-nd)
Funders
  • Medical Research Council (MR/T015594/1)
  • Multiple Sclerosis Society (203913/Z/16/Z)
  • Alzheimer’s Research UK
  • Alzheimer's Society
  • UK Dementia Research Institute
  • Wellcome Trust
Topics
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
pericytes, endothelial cells, dementia, cerebral small vessel disease, Alzheimer's disease, blood-brain barrier, pericyte coverage, cerebral blood flow, neuroinflammation, transcytosis, vascular dysfunction, cognitive decline
MeSH terms
Alzheimer Disease, Animals, Blood-Brain Barrier, Brain, Cell Communication, Dementia, Humans, Pericytes, Endothelial Cells, Cerebral Small Vessel Diseases

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