Cited by 876Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsDementia and Cognitive Impairment Research

The DOI matches its Crossref record; 72 of the 74 references it cites were found in a registry or an index.

ApoE Promotes the Proteolytic Degradation of Aβ

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Abstract

Apolipoprotein E is associated with age-related risk for Alzheimer's disease and plays critical roles in Abeta homeostasis. We report that ApoE plays a role in facilitating the proteolytic clearance of soluble Abeta from the brain. The endolytic degradation of Abeta peptides within microglia by neprilysin and related enzymes is dramatically enhanced by ApoE. Similarly, Abeta degradation extracellularly by insulin-degrading enzyme is facilitated by ApoE. The capacity of ApoE to promote Abeta degradation is dependent upon the ApoE isoform and its lipidation status. The enhanced expression of lipidated ApoE, through the activation of liver X receptors, stimulates Abeta degradation. Indeed, aged Tg2576 mice treated with the LXR agonist GW3965 exhibited a dramatic reduction in brain Abeta load. GW3965 treatment also reversed contextual memory deficits. These data demonstrate a mechanism through which ApoE facilitates the clearance of Abeta from the brain and suggest that LXR agonists may represent a novel therapy for AD.

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Crossref · 10.1016/j.neuron.2008.04.010

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Metadata

Authors
Jiang, Q., Lee, C. Y. D., Mandrekar, S., Wilkinson, B., Cramer, P., Zelcer, N., Mann, K., Lamb, B., Willson, T. M., Collins, J. L., Richardson, J. C., Smith, J. D., Comery, T. A., Riddell, D., Holtzman, D. M., Tontonoz, P., & Landreth, G. E.
Affiliations
  • Case Western Reserve University (US)
  • Howard Hughes Medical Institute (US)
  • Cleveland Clinic (US)
  • GlaxoSmithKline (United Kingdom) (GB)
  • Wyeth (US)
  • Washington University in St. Louis (US)
Corresponding author
Landreth, Gary E.
Venue
Neuron
Publisher
Elsevier BV
Published
2008-06
Volume
58
Issue
5
Pages
681-693
ISSN
0896-6273 (ISSN-L)
OpenAlex
W1994554610
Cited by
876
References
74
Citations by year
2026: 15 · 2025: 34 · 2024: 33 · 2023: 37 · 2022: 35 · 2021: 42 · 2020: 42 · 2019: 47 · 2018: 46 · 2017: 50 · 2016: 57 · 2015: 60 · 2014: 70 · 2013: 70 · 2012: 56
FWCI
41.19
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • Pure Amsterdam UMC (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institute on Aging (R01AG013956, R01AG020202, AG020202, R01AG030482, F32AG24031, F32AG024031, R37AG013956, AG13956)
  • National Heart, Lung, and Blood Institute (HL3 0568, P01HL030568, R01HL066082, R01HL066088, HL66088)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
Keywords
apolipoprotein E, amyloid-beta, neprilysin, insulin-degrading enzyme, microglia, APOE isoforms, lipid modification, liver X receptor, GW3965, Tg2576 mice, Alzheimer's disease, memory impairment
MeSH terms
Liver X Receptors, Aging, Alzheimer Disease, Animals, Animals, Newborn, Apolipoproteins E, Behavior, Animal, Benzoates, Benzylamines, Brain, Cells, Cultured, Disease Models, Animal, DNA-Binding Proteins, Dose-Response Relationship, Drug, Enzyme-Linked Immunosorbent Assay, Memory, Mice, Inbred C57BL, Mice, Transgenic, Peptide Fragments, Time Factors, Amyloid beta-Peptides, Microglia, Receptors, Cytoplasmic and Nuclear, ATP-Binding Cassette Transporters, Mice, Orphan Nuclear Receptors, Plaque, Amyloid, ATP Binding Cassette Transporter 1

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