Cited by 554Neuroscience and Neuropharmacology ResearchCellular transport and secretionReceptor Mechanisms and Signaling

Brain extracellular matrix affects AMPA receptor lateral mobility and short-term synaptic plasticity

Frischknecht, Renato, Heine, Martin, Perrais, David, Seidenbecher, Constanze I, Choquet, Daniel, Gundelfinger, Eckart D·2009·Nature Neuroscience

Abstract

Many synapses in the mature CNS are wrapped by a dense extracellular matrix (ECM). Using single-particle tracking and fluorescence recovery after photobleaching, we found that this net-like ECM formed surface compartments on rat primary neurons that acted as lateral diffusion barriers for AMPA-type glutamate receptors. Enzymatic removal of the ECM increased extrasynaptic receptor diffusion and the exchange of synaptic AMPA receptors. Whole-cell patch-clamp recording revealed an increased paired-pulse ratio as a functional consequence of ECM removal. These results suggest that the surface compartments formed by the ECM hinder lateral diffusion of AMPA receptors and may therefore modulate short-term synaptic plasticity.

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Crossref · 10.1038/nn.2338

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  • Synaptic ECM molecules interact directly with receptors and ion channels, modulating their migration and properties.

    “Synaptic ECM molecules also interact directly with receptors and ion channels, modulating their migration and properties [34, 35].”

    From The extracellular matrix and perineuronal nets in memory (2022) · cites this paper as [35]

  • Digestion of HA with hyaluronidase modulates synaptic function by increasing AMPA receptor mobility and surface expression of NMDA receptors.

    “Digestion of HA with hyaluronidase modulates synaptic function by increasing AMPA receptor mobility (reviewed in [50] and surface expression of NMDA receptors [35, 51].”

    From The extracellular matrix and perineuronal nets in memory (2022) · cites this paper as [35]

  • Others have suggested altered lateral mobility of AMPAR or changes in local diffusion of Ca2+ in brain tissue following PNN degradation.

    “Others have suggested altered lateral mobility of AMPAR53 or changes in the local diffusion of Ca2+ in brain tissue54 following PNN degradation.”
  • Astrocytes form microdomains modulating glutamatergic synapses and extrasynaptic glutamate receptors, and CSPGs control lateral diffusion of cell surface receptors, extrasynaptic diffusion of negatively charged transmitters such as glutamate, and expression of glial transmitter transporters.

    “This possibility is in line with growing evidence indicating that astrocytes form microdomains modulating glutamatergic synapses and extrasynaptic glutamate receptors, and that CSPGs (cell surface bound and as part of ECM) control (i) lateral diffusion of cell surface receptors, (ii) the extrasynaptic diffusion of negatively charged transmitters such as glutamate and (iii) the expression of glial”
  • These functions underlie the role of the adult ECM in neuronal excitability, receptor desensitization, long-term potentiation and long-term depression.

    “Overall, these functions underlie the role of the adult ECM to neuronal excitability, receptor desensitization, long-term potentiation and long-term depression.59, 87, 88, 90, 91, 92, 93”

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Authors
Frischknecht, R., Heine, M., Perrais, D., Seidenbecher, C. I., Choquet, D., & Gundelfinger, E. D.
Affiliations
  • Leibniz Institute for Neurobiology (DE)
  • Centre National de la Recherche Scientifique (FR)
Corresponding author
  • Choquet, Daniel
  • Gundelfinger, Eckart D
Venue
Nature Neuroscience
Published
2009-05-31
Volume
12
Issue
7
Pages
897-904
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2059480421
Cited by
554
References
10
Citations by year
2026: 22 · 2025: 25 · 2024: 35 · 2023: 19 · 2022: 31 · 2021: 42 · 2020: 41 · 2019: 30 · 2018: 43 · 2017: 29 · 2016: 38 · 2015: 27 · 2014: 43 · 2013: 33 · 2012: 31
FWCI
13.16
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Receptor Mechanisms and Signaling
Keywords
extracellular matrix, AMPA receptors, lateral diffusion, short-term plasticity, paired-pulse ratio, extrasynaptic receptors, synaptic transmission, primary neurons
MeSH terms
Animals, Brain, Cells, Cultured, Dendrites, Extracellular Matrix, Hyaluronoglucosaminidase, Synaptic Transmission, Neuronal Plasticity, Neurons, Synapses, Receptors, N-Methyl-D-Aspartate, Rats, Sprague-Dawley, Receptors, AMPA, Patch-Clamp Techniques, Fluorescence Recovery After Photobleaching, Mice, Rats, In Vitro Techniques

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