Cited by 437Neuroscience and Neuropharmacology ResearchGenetics and Neurodevelopmental DisordersMemory and Neural Mechanisms

Postnatal synaptic potentiation: delivery of GluR4-containing AMPA receptors by spontaneous activity

Zhu, J. Julius, Esteban, José A., Hayashi, Yasunori, Malinow, Roberto·2000·Nature Neuroscience

Abstract

To examine how functional circuits are established in the brain, we studied excitatory transmission in early postnatal hippocampus. Spontaneous neural activity was sufficient to selectively deliver GluR4-containing AMPA receptors (AMPA-Rs) into synapses. This delivery allowed non-functional connections to transmit at resting potentials and required NMDA receptors (NMDA-Rs) but not CaMKII activation. Subsequently, these delivered receptors were exchanged with non-synaptic GluR2-containing AMPA-Rs in a manner requiring little neuronal activity. The enhanced transmission resulting from this delivery and subsequent exchange was maintained for at least several days and required an interaction between GluR2 and NSF. Thus, this sequence of subunit-specific trafficking events triggered by spontaneous activity in early postnatal development may be crucial for initial establishment of long-lasting functional circuitry.

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Crossref · 10.1038/80614

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43 of 43 references verified0 citation errors · 0 not checkable

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  • GRIA4 encodes an AMPA-sensitive glutamate receptor that functions as a ligand-gated ion channel and mediates synaptic transmission and neuroplasticity.

    “For instance, GRIA4 encodes an AMPA-sensitive glutamate receptor that functions as a ligand-gated ion channel and mediates synaptic transmission and neuroplasticity (Zhu et al. 2000).”
  • NMDARs are localized very early to the postsynaptic membrane, but transition to a more mature synapse state is characterized by recruitment of AMPARs to the synapse.

    “N-methyl-D-aspartate receptors (NMDAR) are localized very early to the postsynaptic membrane, but transition to a more mature synapse state is characterized by recruitment of alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptors (AMPAR) to the synapse.71, 72, 73, 74”
  • Expression of AMPARs on the postsynaptic membrane is induced by NMDAR-mediated long term potentiation (LTP).

    “Expression of AMPARs on the postsynaptic membrane is induced by NMDAR-mediated long term potentiation (LTP), the same mechanism originally described in hippocampus for learning and memory.73, 74, 75, 76”

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Authors
Zhu, J. J., Esteban, J. A., Hayashi, Y., & Malinow, R.
Affiliations
  • Cold Spring Harbor Laboratory (US)
  • Massachusetts Institute of Technology (US)
Corresponding author
Malinow, Roberto
Venue
Nature Neuroscience
Published
2000-11
Volume
3
Issue
11
Pages
1098-1106
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W1544008935
Cited by
437
References
43
Citations by year
2026: 3 · 2025: 10 · 2024: 9 · 2023: 5 · 2022: 9 · 2021: 14 · 2020: 15 · 2019: 8 · 2018: 18 · 2017: 11 · 2016: 10 · 2015: 13 · 2014: 16 · 2013: 12 · 2012: 16
FWCI
8.51
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • Cold Spring Harbor Laboratory Institutional Repository (Cold Spring Harbor Laboratory) (acceptedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
GluR4, GluR2, AMPA receptor trafficking, spontaneous neuronal activity, hippocampus, NMDA receptor, CaMKII, NSF, synaptic transmission, circuit formation
MeSH terms
Animals, Cell Line, Hippocampus, Synaptic Transmission, Synapses, Receptors, AMPA, Excitatory Postsynaptic Potentials, Rats

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