Cited by 97Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsNeuroscience and Neuropharmacology Research

Apolipoprotein E4 produced in GABAergic interneurons causes learning and memory deficits in mice

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Knoferle, Johanna, Yoon, Seo Yeon, Walker, David, Leung, Laura, Gillespie, Anna K., Tong, Leslie M., Bien-Ly, Nga, Huang, Yadong·2014·The Journal of Neuroscience

Abstract

Apolipoprotein (apo) E4 is expressed in many types of brain cells, is associated with age-dependent decline of learning and memory in humans, and is the major genetic risk factor for AD. To determine whether the detrimental effects of apoE4 depend on its cellular sources, we generated human apoE knock-in mouse models in which the human APOE gene is conditionally deleted in astrocytes, neurons, or GABAergic interneurons. Here we report that deletion of apoE4 in astrocytes does not protect aged mice from apoE4-induced GABAergic interneuron loss and learning and memory deficits. In contrast, deletion of apoE4 in neurons does protect aged mice from both deficits. Furthermore, deletion of apoE4 in GABAergic interneurons is sufficient to gain similar protection. This study demonstrates a detrimental effect of endogenously produced apoE4 on GABAergic interneurons that leads to learning and memory deficits in mice and provides a novel target for drug development for AD related to apoE4.

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Crossref · 10.1523/jneurosci.2281-14.2014

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  • Neurons synthesize and secrete as much as 20% of brain ApoE under physiological conditions.

    “neurons were found to synthesize and secrete as much as 20% of brain ApoE under physiological conditions (Knoferle et al., 2014)”

    From ApoE4 Impairs Neuron-Astrocyte Coupling of Fatty Acid Metabolism (2021) · cites this paper as Knoferle et al., 2014

    The Results section (page unavailable) reports that deleting APOE in neurons reduced total ApoE protein by about 20% in mouse cortex, supporting a neuronal contribution to ApoE levels. The paper does not establish that neurons secrete that amount, and its hippocampal estimates differ by ApoE variant; the claim generalizes the cortical finding to brain ApoE. (LLM, conf=0.87)

    Experimental — accuracy not yet measured

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Cited by

Sorted by citations

Authors
Knoferle, J., Yoon, S. Y., Walker, D., Leung, L., Gillespie, A. K., Tong, L. M., Bien-Ly, N., & Huang, Y.
Affiliations
Gladstone Institutes (US)
Venue
The Journal of Neuroscience
Published
2014-10-15
Volume
34
Issue
42
Pages
14069-14078
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2119616605
Cited by
97
References
10
Citations by year
2026: 9 · 2025: 8 · 2024: 13 · 2023: 8 · 2022: 7 · 2021: 13 · 2020: 11 · 2019: 8 · 2018: 3 · 2017: 3 · 2016: 9 · 2015: 5
FWCI
3.53
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by-nc-sa)
Funders
  • S. D. Bechtel, Jr. Foundation and Stephen Bechtel Fund
  • Hellman Foundation
  • Deutsche Forschungsgemeinschaft
  • National Institutes of Health
  • National Institute on Aging (RF1AG047655, P01AG022074)
  • National Institute of Neurological Disorders and Stroke (P30NS065780)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (T32HD007470)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
APOE ε4, GABAergic interneurons, learning and memory impairment, Alzheimer's disease, astrocytes, conditional gene deletion, knock-in mice, aging, interneuron loss
MeSH terms
Animals, Female, Humans, Interneurons, Learning, Memory Disorders, Mice, Transgenic, Mice, Apolipoprotein E4, GABAergic Neurons

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