Cited by 75Advanced Glycation End Products researchNeuroinflammation and Neurodegeneration MechanismsAlzheimer's disease research and treatments

Induction of Neuronal Death by Microglial AGE-Albumin: Implications for Alzheimer’s Disease

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Byun, Kyunghee, Bayarsaikhan, Enkhjaigal, Kim, Daesik, Kim, Chae Young, Mook-Jung, Inhee, Paek, Sun Ha, Kim, Seung U., Yamamoto, Tadashi +4 more·2012·PLoS ONE

Abstract

Advanced glycation end products (AGEs) have long been considered as potent molecules promoting neuronal cell death and contributing to neurodegenerative disorders such as Alzheimer's disease (AD). In this study, we demonstrate that AGE-albumin, the most abundant AGE product in human AD brains, is synthesized in activated microglial cells and secreted into the extracellular space. The rate of AGE-albumin synthesis in human microglial cells is markedly increased by amyloid-β exposure and oxidative stress. Exogenous AGE-albumin upregulates the receptor protein for AGE (RAGE) and augments calcium influx, leading to apoptosis of human primary neurons. In animal experiments, soluble RAGE (sRAGE), pyridoxamine or ALT-711 prevented Aβ-induced neuronal death in rat brains. Collectively, these results provide evidence for a new mechanism by which microglial cells promote death of neuronal cells through synthesis and secretion of AGE-albumin, thereby likely contributing to neurodegenerative diseases such as AD.

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Authors
Byun, K., Bayarsaikhan, E., Kim, D., Kim, C. Y., Mook-Jung, I., Paek, S. H., Kim, S. U., Yamamoto, T., Won, M.-H., Song, B.-J., Park, Y. M., & Lee, B.
Affiliations
  • Gachon University (KR)
  • Seoul National University (KR)
  • University of British Columbia (CA)
  • Niigata University (JP)
  • Kangwon National University (KR)
  • National Institutes of Health (US)
  • Korea Basic Science Institute (KR)
Corresponding author
Park, Young Mok
Venue
PLoS ONE
Published
2012-05-25
Volume
7
Issue
5
Pages
e37917
ISSN
1932-6203 (ISSN-L)
OpenAlex
W1964539405
Cited by
75
References
32
Citations by year
2025: 5 · 2024: 4 · 2023: 3 · 2022: 9 · 2021: 5 · 2019: 3 · 2018: 4 · 2017: 9 · 2016: 9 · 2015: 10 · 2014: 10 · 2013: 4
FWCI
4.93
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
Funders
  • National Research Foundation
  • Universiteit Maastricht
  • Korea Basic Science Institute (G30124)
  • National Institutes of Health
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
advanced glycation end products, microglia, Alzheimer's disease, neuronal cell death, amyloid-beta, oxidative stress, receptor for advanced glycation end products, soluble RAGE, pyridoxamine, ALT-711, calcium influx, apoptosis, neuroinflammation
MeSH terms
Receptor for Advanced Glycation End Products, Albumins, Alzheimer Disease, Animals, Brain, Cell Line, Humans, Male, Neurons, Receptors, Immunologic, Amyloid beta-Peptides, Cell Death, Glycation End Products, Advanced, Rats, Sprague-Dawley, Apoptosis, Microglia, Oxidative Stress, Rats, Protein Multimerization

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