Cited by 98Alzheimer's disease research and treatmentsCellular transport and secretionNeuroscience and Neuropharmacology Research

Reversal of ApoE4-induced recycling block as a novel prevention approach for Alzheimer’s disease

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Xian, Xunde, Pohlkamp, Theresa, Durakoglugil, Murat S, Wong, Connie H, Beck, Jürgen K, Lane-Donovan, Courtney, Plattner, Florian, Herz, Joachim·2018·eLife

Abstract

ApoE4 genotype is the most prevalent and also clinically most important risk factor for late-onset Alzheimer’s disease (AD). Available evidence suggests that the root cause for this increased risk is a trafficking defect at the level of the early endosome. ApoE4 differs from the most common ApoE3 isoform by a single amino acid that increases its isoelectric point and promotes unfolding of ApoE4 upon endosomal vesicle acidification. We found that pharmacological and genetic inhibition of NHE6, the primary proton leak channel in the early endosome, in rodents completely reverses the ApoE4-induced recycling block of the ApoE receptor Apoer2/Lrp8 and the AMPA- and NMDA-type glutamate receptors that are regulated by, and co-endocytosed in a complex with, Apoer2. Moreover, NHE6 inhibition restores the Reelin-mediated modulation of excitatory synapses that is impaired by ApoE4. Our findings suggest a novel potential approach for the prevention of late-onset AD.

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Authors
Xian, X., Pohlkamp, T., Durakoglugil, M. S., Wong, C. H., Beck, J. K., Lane-Donovan, C., Plattner, F., & Herz, J.
Affiliations
  • The University of Texas Southwestern Medical Center (US)
  • Jkb Consult Inc SPRL, Brussels, Belgium
  • Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, United States
Corresponding author
  • Xian, Xunde
  • Herz, Joachim
Venue
eLife
Published
2018-10-30
Volume
7
ISSN
2050-084X (ISSN-L)
OpenAlex
W2899406479
Cited by
98
References
83
Citations by year
2026: 11 · 2025: 14 · 2024: 22 · 2023: 8 · 2022: 14 · 2021: 10 · 2020: 12 · 2019: 7
FWCI
4.99
Type
journal article
Language
en
Open access
Locations
  • eLife (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)
Funders
  • National Institutes of Health (R37 HL63762, R01 NS108115, R01 NS093382, RF1 AG053391)
  • BrightFocus Foundation (A2016396S)
  • Bluefield Project
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
APOE ε4, Alzheimer's disease, late-onset Alzheimer's disease, NHE6, AMPA receptors, NMDA receptor, reelin, excitatory synapses, disease prevention
MeSH terms
Reelin Protein, Alzheimer Disease, Animals, Disease Models, Animal, Genotype, Humans, Mice, Inbred C57BL, Endosomes, Rats, Sprague-Dawley, Receptors, Glutamate, Sodium-Hydrogen Exchangers, LDL-Receptor Related Proteins, Apolipoprotein E4, HEK293 Cells

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