Cited by 107Neuroinflammation and Neurodegeneration MechanismsAlzheimer's disease research and treatmentsNeurological Disease Mechanisms and Treatments

Macrophages in Alzheimer’s disease: the blood-borne identity

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Gate, David, Rezai-Zadeh, Kavon, Jodry, Dominique, Rentsendorj, Altan, Town, Terrence·2010·Journal of Neural Transmission

Abstract

Alzheimer's disease (AD) is a progressive and incurable neurodegenerative disorder clinically characterized by cognitive decline involving loss of memory, reasoning and linguistic ability. The amyloid cascade hypothesis holds that mismetabolism and aggregation of neurotoxic amyloid-beta (Abeta) peptides, which are deposited as amyloid plaques, are the central etiological events in AD. Recent evidence from AD mouse models suggests that blood-borne mononuclear phagocytes are capable of infiltrating the brain and restricting beta-amyloid plaques, thereby limiting disease progression. These observations raise at least three key questions: (1) what is the cell of origin for macrophages in the AD brain, (2) do blood-borne macrophages impact the pathophysiology of AD and (3) could these enigmatic cells be therapeutically targeted to curb cerebral amyloidosis and thereby slow disease progression? This review begins with a historical perspective of peripheral mononuclear phagocytes in AD, and moves on to critically consider the controversy surrounding their identity as distinct from brain-resident microglia and their potential impact on AD pathology.

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Authors
Gate, D., Rezai-Zadeh, K., Jodry, D., Rentsendorj, A., & Town, T.
Affiliations
Cedars-Sinai Medical Center (US)
Corresponding author
Town, Terrence
Venue
Journal of Neural Transmission
Published
2010-06-02
Volume
117
Issue
8
Pages
961-970
ISSN
  • 0300-9564 (ISSN-L)
  • 1435-1463
OpenAlex
W2058092975
Cited by
107
References
69
Citations by year
2026: 2 · 2025: 3 · 2024: 12 · 2023: 5 · 2022: 8 · 2021: 4 · 2020: 6 · 2019: 5 · 2018: 5 · 2017: 6 · 2016: 10 · 2015: 12 · 2014: 8 · 2013: 6 · 2012: 7
FWCI
0.56
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Journal of Neural Transmission (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion, other-oa)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • Case Western Reserve University
  • University of South Florida
  • National Institutes of Health
  • National Institute on Aging (R00AG029726)
Topics
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
Keywords
Alzheimer's disease, macrophages, microglia, amyloid-beta, amyloid plaques, cerebral amyloidosis, cell of origin, therapeutic targeting, neuroinflammation
MeSH terms
Alzheimer Disease, Animals, Blood-Brain Barrier, Brain, Humans, Macrophages, Models, Biological

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