Evidence map›Paper›PMID 41248277›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2025

Dynamic extracellular interactions with AMPA receptors.

Hana Goldschmidt Merrion, Casey N Barber, Santosh Renuse, Jevon Cutler, Simion Kreimer, Alexei M Bygrave, David J Meyers, W Dylan Hale, Akhilesh Pandey, Richard L Huganir

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Dynamic extracellular interactions with AMPA receptors.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Hana Goldschmidt MerrionSolomon H. Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD 21205.
Casey N BarberSolomon H. Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD 21205.ORCID 0009-0005-4310-6395
Santosh RenuseMcKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205.ORCID 0000-0002-4051-5637
Jevon CutlerMcKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205.
Simion KreimerDepartment of Biological Chemistry, The Johns Hopkins University School of Medicine, Baltimore, MD 21205.ORCID 0000-0001-6627-3771
Alexei M BygraveSolomon H. Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD 21205.ORCID 0000-0003-2291-923X
David J MeyersDepartment of Pharmacology and Molecular Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD 21205.ORCID 0000-0002-7010-6930
W Dylan HaleSolomon H. Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD 21205.
Akhilesh PandeyMcKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205.ORCID 0000-0001-9943-6127
Richard L HuganirSolomon H. Snyder Department of Neuroscience, The Johns Hopkins University School of Medicine, Baltimore, MD 21205.ORCID 0000-0001-9783-5183

Funding

The Dynamic AMPA Receptor Interactome During Plasticity and LearningR37NS036715 · NINDS · JOHNS HOPKINS UNIVERSITY · PI Richard L Huganir · 2022 to 2026
$3.2M
Molecular basis of glutamatergic synapse function in inhibitory interneuronsR00MH124920 · NIMH · TUFTS UNIVERSITY BOSTON · PI BYGRAVE, ALEXEI MANSFIELD · 2022 to 2024
$735k
Structure-guided functional analysis of GluA4-NPTX2 interaction during PVIN homeostatic scalingK99MH132811 · NIMH · JOHNS HOPKINS UNIVERSITY · PI HALE, WILLIAM DYLAN · 2023 to 2024
$206k
Proteomic mining of intra- and extracellular proteins that modulate AMPA receptor functionF32NS098946 · NINDS · JOHNS HOPKINS UNIVERSITY · PI GOLDSCHMIDT, HANA L · 2017 to 2019
$184k
NIMH NIH HHS K99 MH132811NIMH NIH HHS R00 MH124920NINDS NIH HHS F32 NS098946NINDS NIH HHS R37 NS036715
6 · The paper itself

Abstract

Synaptic plasticity in the central nervous system enables the encoding, storing, and integrating new information. AMPA (alpha-amino-3-hydroxyl-5-methyl-isoxazole-4-propionic acid)-type glutamate receptors (AMPARs) are ligand-gated ion channels that mediate most fast excitatory synaptic transmission in the brain, and plasticity of AMPARs signaling underlies the long-lasting changes in synaptic efficacy and strength important for learning and memory. Recent work has indicated that the enigmatic N-terminal domain (NTD) of AMPARs may be a critical regulator of synaptic targeting and plasticity of AMPARs. However, few synaptic proteins have been identified that regulate AMPAR plasticity through interactions with AMPAR NTDs. Moreover, the scope of AMPAR NTD interactors that are important for synaptic plasticity remains unknown. Here, we present the dynamic, extracellular interactome for AMPARs during synaptic plasticity. Using surface-restricted proximity labeling and BioSITe-based proteomics, we identified 70 proteins that were differentially labeled by APEX2-tagged AMPARs after induction of chemical long-term potentiation of synapses in cultured neurons. Included in this list, were four members of the IgLON family of GPI-anchored proteins (Ntm, OBCAM/Opcml, Negr1, Lsamp). We show OBCAM and NTM directly interact with the extracellular domains of AMPARs. Moreover, overexpression of NTM significantly attenuates the mobility of surface AMPARs in dendritic spines. These data represent a significant step at uncovering the unexplored extracellular regulation of AMPARs, with broad implications for synapse function and synaptic plasticity.

Indexed as

Receptors, AMPAAnimalsHippocampusHumansLong-Term PotentiationNeuronal PlasticityNeuronsProtein DomainsProteomicsRatsSynapsesSynaptic TransmissionReceptors, AMPAAMPA receptorextracellularIgLONproximity proteomicssynaptic plasticity

Identifiers

PMID41248277
PMCPMC12663928

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.