Cited by 186Neuroscience and Neuropharmacology ResearchNicotinic Acetylcholine Receptors StudyGenetics and Neurodevelopmental Disorders

Differential reelin-induced enhancement of NMDA and AMPA receptor activity in the adult hippocampus

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Qiu, Shenfeng, Zhao, Lisa F., Korwek, Kimberly M., Weeber, Edwin J.·2006·The Journal of Neuroscience

Abstract

The developmental lamination of the hippocampus and other cortical structures requires a signaling cascade initiated by reelin and its receptors, apoER2 (apolipoprotein E receptor 2) and VLDLR (very-low-density lipoprotein receptor). However, the functional significance of continued reelin expression in the postnatal brain remains poorly understood. Here, we show that reelin application to adult mice hippocampal slices leads to enhanced glutamatergic transmission mediated by NMDA receptors (NMDARs) and AMPA receptors (AMPARs) through distinct mechanisms. Application of recombinant reelin enhanced NMDAR-mediated currents through postsynaptic mechanisms, as revealed by the variance-mean analysis of synaptic NMDAR currents, assessment of spontaneous miniature events, and the levels of NMDAR subunits at synaptic surface. In comparison, nonstationary fluctuation analysis of miniature AMPAR currents and quantification of synaptic surface proteins revealed that reelin-induced enhancement of AMPAR responses was mediated by increased AMPAR numbers. Reelin enhancement of synaptic NMDAR currents was abolished when receptor-associated protein (RAP) or the Src inhibitor 4-amino-5-(4-methylphenyl)-7-(t-butyl)pyrazolo[3,4-d]-pyrimidine (PP1) was bath applied and was abrogated by including PP1 in the recording electrodes. In comparison, including RAP or an inactive PP1 analog PP3 in the recording electrode was without effect. Interestingly, the increased AMPAR response after reelin application was not blocked by PP1 but was blocked by the phosphoinositide-3' kinase (PI3K) inhibitors wortmannin and LY294002 [2-(4-morpholinyl)-8-phenyl-1(4H)-benzopyran-4-one hydrochloride]. Furthermore, reelin-induced, PI3K-dependent AMPAR surface insertion was also observed in cultured hippocampal neurons. Together, these results reveal a differential functional coupling of reelin signaling with NMDAR and AMPAR function and define a novel mechanism for controlling synaptic strength and plasticity in the adult hippocampus.

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Crossref · 10.1523/jneurosci.2561-06.2006

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  • Reelin enhances hippocampal synaptic plasticity by altering the composition of NMDA receptor subunits and promoting surface clustering of AMPA receptors.

    “Reelin is also known to enhance hippocampal synaptic plasticity (Pujadas et al., 2010; Weeber et al., 2002) by altering the composition of NMDA receptor subunits and promoting surface clustering of AMPA receptors (Qiu et al., 2006) (Figure 3B).”

    From Adult neurogenesis, glia, and the extracellular matrix (2019) · cites this paper as Qiu et al., 2006

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Authors
Qiu, S., Zhao, L. F., Korwek, K. M., & Weeber, E. J.
Affiliations
  • Vanderbilt University Medical Center (US)
  • Vanderbilt University (US)
Venue
The Journal of Neuroscience
Published
2006-12-13
Volume
26
Issue
50
Pages
12943-12955
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2040901919
Cited by
186
References
69
Citations by year
2026: 5 · 2025: 8 · 2024: 9 · 2023: 11 · 2022: 9 · 2021: 8 · 2020: 14 · 2019: 9 · 2018: 3 · 2017: 7 · 2016: 17 · 2015: 9 · 2014: 12 · 2013: 10 · 2012: 11
FWCI
2.53
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Vanderbilt University (HEK293)
  • Vanderbilt University Medical Center
  • National Institutes of Health (HEK293)
  • National Institute on Aging (R01AG022574)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nicotinic Acetylcholine Receptors Study
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
reelin, NMDA receptor, AMPA receptors, hippocampus, synaptic transmission, phosphoinositide 3-kinase signaling, Src family kinases, receptor-associated protein, synaptic plasticity, postnatal brain development, glutamatergic synapses
MeSH terms
Reelin Protein, Animals, Cell Line, Cells, Cultured, Female, Hippocampus, Humans, Male, Mice, Inbred C3H, Mice, Inbred C57BL, Nerve Tissue Proteins, Serine Endopeptidases, Signal Transduction, Cell Adhesion Molecules, Neuronal, Receptors, N-Methyl-D-Aspartate, Extracellular Matrix Proteins, Receptors, AMPA, src-Family Kinases, Excitatory Postsynaptic Potentials, Mice

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