Cited by 392Alzheimer's disease research and treatmentsDementia and Cognitive Impairment ResearchNeuroinflammation and Neurodegeneration Mechanisms

Apolipoprotein E fragments present in Alzheimer's disease brains induce neurofibrillary tangle-like intracellular inclusions in neurons

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Huang, Yadong, Liu, Xiao Qin, Wyss-Coray, Tony, Brecht, Walter J., Sanan, David A., Mahley, Robert W.·2001·Proceedings of the National Academy of Sciences

Abstract

Human apolipoprotein (apo) E4, a major risk factor for Alzheimer's disease (AD), occurs in amyloid plaques and neurofibrillary tangles (NFTs) in AD brains; however, its role in the pathogenesis of these lesions is unclear. Here we demonstrate that carboxyl-terminal-truncated forms of apoE, which occur in AD brains and cultured neurons, induce intracellular NFT-like inclusions in neurons. These cytosolic inclusions were composed of phosphorylated tau, phosphorylated neurofilaments of high molecular weight, and truncated apoE. Truncated apoE4, especially apoE4(Δ272–299), induced inclusions in up to 75% of transfected neuronal cells, but not in transfected nonneuronal cells. ApoE4 was more susceptible to truncation than apoE3 and resulted in much greater intracellular inclusion formation. These results suggest that apoE4 preferentially undergoes intracellular processing, creating a bioactive fragment that interacts with cytoskeletal components and induces NFT-like inclusions containing phosphorylated tau and phosphorylated neurofilaments of high molecular weight in neurons.

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Crossref · 10.1073/pnas.151254698

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Authors
Huang, Y., Liu, X. Q., Wyss-Coray, T., Brecht, W. J., Sanan, D. A., & Mahley, R. W.
Affiliations
  • University of California, San Francisco (US)
  • Gladstone Institute of Neurological Disease and Gladstone Institute of Cardiovascular Disease, P.O. Box 419100, San Francisco, CA 94141-9100; and Departments of Pathology, Neurology, and Medicine, University of California, San Francisco, CA 94143
  • Gladstone Institutes (US)
Venue
Proceedings of the National Academy of Sciences
Published
2001-07-10
Volume
98
Issue
15
Pages
8838-8843
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2063505049
Cited by
392
References
48
Citations by year
2026: 10 · 2025: 16 · 2024: 13 · 2023: 9 · 2022: 10 · 2021: 14 · 2020: 19 · 2019: 20 · 2018: 15 · 2017: 20 · 2016: 24 · 2015: 13 · 2014: 21 · 2013: 14 · 2012: 16
FWCI
9.96
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
Keywords
APOE ε4, Alzheimer's disease, neurofibrillary tangles, intracellular inclusions, tau phosphorylation, cytoskeletal interactions, APOE3, amyloid plaques
MeSH terms
Aged, Aged, 80 and over, Alzheimer Disease, Apolipoproteins E, Brain, Cells, Cultured, Inclusion Bodies, Cytosol, Humans, Intracellular Fluid, Neurons, Peptide Fragments, Mutagenesis, Neurofibrillary Tangles, tau Proteins, Neurofilament Proteins, Apolipoprotein E4

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