Cited by 47Neuroscience and Neuropharmacology ResearchMemory and Neural MechanismsGenetics and Neurodevelopmental Disorders

Synaptic plasticity and cognitive function are disrupted in the absence of Lrp4

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Gomez, Andrea M, Froemke, Robert C, Burden, Steven J·2014·eLife

Abstract

Lrp4, the muscle receptor for neuronal Agrin, is expressed in the hippocampus and areas involved in cognition. The function of Lrp4 in the brain, however, is unknown, as Lrp4−/− mice fail to form neuromuscular synapses and die at birth. Lrp4−/− mice, rescued for Lrp4 expression selectively in muscle, survive into adulthood and showed profound deficits in cognitive tasks that assess learning and memory. To learn whether synapses form and function aberrantly, we used electrophysiological and anatomical methods to study hippocampal CA3–CA1 synapses. In the absence of Lrp4, the organization of the hippocampus appeared normal, but the frequency of spontaneous release events and spine density on primary apical dendrites were reduced. CA3 input was unable to adequately depolarize CA1 neurons to induce long-term potentiation. Our studies demonstrate a role for Lrp4 in hippocampal function and suggest that patients with mutations in Lrp4 or auto-antibodies to Lrp4 should be evaluated for neurological deficits.

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  • Mice expressing Lrp4 in muscle on an Lrp4 knockout background show reduced synaptic transmission and long-term potentiation.

    “these mice have a reduction of synaptic transmission and long-term potentiation [93]”

    From ApoE, ApoE Receptors, and the Synapse in Alzheimer's Disease (2017) · cites this paper as [93]

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Authors
Gomez, A. M., Froemke, R. C., & Burden, S. J.
Affiliations
NYU Langone Health (US)
Corresponding author
Burden, Steven J
Venue
eLife
Published
2014-11-19
Volume
3
Pages
e04287-e04287
ISSN
2050-084X (ISSN-L)
OpenAlex
W2117504532
Cited by
47
References
49
Citations by year
2026: 1 · 2024: 4 · 2023: 5 · 2022: 9 · 2021: 7 · 2020: 2 · 2019: 2 · 2018: 5 · 2017: 5 · 2016: 4 · 2015: 3
FWCI
1.83
Type
journal article
Language
en
Open access
Locations
  • eLife (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • eScholarship (California Digital Library) (submittedVersion)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
Funders
  • Alfred P. Sloan Foundation (Sloan Foundation) (Robert Froemke)
  • National Institute of Neurological Disorders and Stroke (NS36193)
  • National Cancer Institute (P30CA16087)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
LRP4, synaptic plasticity, learning and memory, hippocampus, CA3-CA1 synapses, long-term potentiation, dendritic spine density, cognitive impairment
MeSH terms
Animals, Animals, Newborn, Cognition, Membranes, Memory, Mice, Mutant Strains, Muscles, Synaptic Transmission, Neuronal Plasticity, Receptors, LDL, Long-Term Potentiation, Maze Learning, LDL-Receptor Related Proteins, Dendritic Spines, CA1 Region, Hippocampal

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