Cited by 439Advanced Glycation End Products researchNeuroinflammation and Neurodegeneration MechanismsAlzheimer's disease research and treatments

Involvement of Microglial Receptor for Advanced Glycation Endproducts (RAGE) in Alzheimer's Disease: Identification of a Cellular Activation Mechanism

Lue, Lih-Fen, Walker, Douglas G., Brachova, Libuse, Beach, Thomas G., Rogers, Joseph, Schmidt, Ann Marie, Stern, David M., Yan, Shi Du·2001·Experimental Neurology

Abstract

Receptor-mediated interactions with amyloid beta-peptide (Abeta) could be important in the evolution of the inflammatory processes and cellular dysfunction that are prominent in Alzheimer's disease (AD) pathology. One candidate receptor is the receptor for advanced glycation endproducts (RAGE), which can bind Abeta and transduce signals leading to cellular activation. Data are presented showing a potential mechanism for Abeta activation of microglia that could be mediated by RAGE and macrophage colony-stimulating factor (M-CSF). Using brain tissue from AD and nondemented (ND) individuals, RAGE expression was shown to be present on microglia and neurons of the hippocampus, entorhinal cortex, and superior frontal gyrus. The presence of increased numbers of RAGE-immunoreactive microglia in AD led us to further analyze RAGE-related properties of these cells cultured from AD and ND brains. Direct addition of Abeta(1-42) to the microglia increased their expression of M-CSF. This effect was significantly greater in microglia derived from AD brains compared to those from ND brains. Increased M-CSF secretion was also demonstrated using a cell culture model of plaques whereby microglia were cultured in wells containing focal deposits of immobilized Abeta(1-42). In each case, the Abeta stimulation of M-CSF secretion was significantly blocked by treatment of cultures with anti-RAGE F(ab')2. Treatment of microglia with anti-RAGE F(ab')2 also inhibited the chemotactic response of microglia toward Abeta(1-42). Finally, incubation of microglia with M-CSF and Abeta increased expression of RAGE mRNA. These microglia also expressed M-CSF receptor mRNA. These data suggest a positive feedback loop in which Abeta-RAGE-mediated microglial activation enhances expression of M-CSF and RAGE, possibly initiating an ascending spiral of cellular activation.

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Crossref · 10.1006/exnr.2001.7732

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Authors
Lue, L.-F., Walker, D. G., Brachova, L., Beach, T. G., Rogers, J., Schmidt, A. M., Stern, D. M., & Yan, S. D.
Affiliations
  • Banner Sun Health Research Institute (US)
  • Columbia University (US)
Corresponding author
Lue, Lih-Fen
Venue
Experimental Neurology
Publisher
Elsevier BV
Published
2001-09
Volume
171
Issue
1
Pages
29-45
ISSN
0014-4886 (ISSN-L)
OpenAlex
W2003813921
Cited by
439
References
73
Citations by year
2026: 10 · 2025: 14 · 2024: 9 · 2023: 19 · 2022: 19 · 2021: 31 · 2020: 20 · 2019: 14 · 2018: 17 · 2017: 14 · 2016: 16 · 2015: 28 · 2014: 24 · 2013: 17 · 2012: 27
FWCI
6.92
Type
journal article
Language
en
Open access
closed
Locations
  • Experimental Neurology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (HL60901, AG00690, AG14103, AG07367, HL56881, AG16736)
  • Burroughs Wellcome Fund
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Advanced Glycation End Products research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
Alzheimer's disease, receptor for advanced glycation end products, RAGE, amyloid-beta, microglial activation, macrophage colony-stimulating factor, M-CSF receptor, neuroinflammation, amyloid plaques, chemotaxis, hippocampus, entorhinal cortex, superior frontal gyrus
MeSH terms
Receptor for Advanced Glycation End Products, Aged, Aged, 80 and over, Alzheimer Disease, Cells, Cultured, Chemotaxis, Dose-Response Relationship, Drug, Feedback, Female, Frontal Lobe, Hippocampus, Humans, Immunoglobulin Fab Fragments, Immunohistochemistry, Male, Middle Aged, Neurons, Peptide Fragments, Receptors, Immunologic, RNA, Messenger, Signal Transduction, Macrophage Colony-Stimulating Factor, Amyloid beta-Peptides, Microglia, Entorhinal Cortex

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