Evidence map›Paper›PMID 33790745›Full record

ArticleFrontiers in neural circuits2021

Trans-Synaptic Regulation of Metabotropic Glutamate Receptors by Elfn Proteins in Health and Disease.

Hayato Matsunaga, Jun Aruga

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neural circuits, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 19% of its field
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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Trans-synaptic Interaction with mGluR6 Contributes to ELFN1 Presynaptic Enrichment in Rod Photoreceptors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  6. Profiling the Impact of mGluACS chemical neuroscience · 2025
    Article
  7. Trans-synaptic modulation of cholinergic circuits tunes opioid reinforcement.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Review
  9. Review
  10. Review
  11. Review
  12. Genomic analysis identifies risk factors in restless legs syndrome.medRxiv : the preprint server for health sciences · 2023
    Article
  13. GRM7 gene mutations and consequences for neurodevelopment.Pharmacology, biochemistry, and behavior · 2023
    Review
  14. Review
  15. Article
  16. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Hayato MatsunagaDepartment of Medical Pharmacology, Nagasaki University Institute of Biomedical Sciences, Nagasaki, Japan.
Jun ArugaDepartment of Medical Pharmacology, Nagasaki University Institute of Biomedical Sciences, Nagasaki, Japan.
Nagasaki University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Trans-regulation of G protein-coupled receptors (GPCRs) by leucine-rich repeat (LRR) transmembrane proteins has emerged as a novel type of synaptic molecular interaction in the last decade. Several studies on LRR-GPCR interactions have revealed their critical role in synapse formation and in establishing synaptic properties. Among them, LRR-GPCR interactions between extracellular LRR fibronectin domain-containing family proteins (Elfn1 and Elfn2) and metabotropic glutamate receptors (mGluRs) are particularly interesting as they can affect a broad range of synapses through the modulation of signaling by glutamate, the principal excitatory transmitter in the mammalian central nervous system (CNS). Elfn-mGluR interactions have been investigated in hippocampal, cortical, and retinal synapses. Postsynaptic Elfn1 in the hippocampus and cerebral cortex mediates the tonic regulation of excitatory input onto somatostatin-positive interneurons (INs) through recruitment of presynaptic mGluR7. In the retina, presynaptic Elfn1 binds to mGluR6 and is necessary for synapse formation between rod photoreceptor cells and rod-bipolar cells. The repertoire of binding partners for Elfn1 and Elfn2 includes all group III mGluRs (mGluR4, mGluR6, mGluR7, and mGluR8), and both Elfn1 and Elfn2 can alter mGluR-mediated signaling through trans-interaction. Importantly, both preclinical and clinical studies have provided support for the involvement of the Elfn1-mGluR7 interaction in attention-deficit hyperactivity disorder (ADHD), post-traumatic stress disorder (PTSD), and epilepsy. In fact, Elfn1-mGluR7-associated disorders may reflect the altered function of somatostatin-positive interneuron inhibitory neural circuits, the mesolimbic and nigrostriatal dopaminergic pathway, and habenular circuits, highlighting the need for further investigation into this interaction.

Indexed as

Receptors, Metabotropic GlutamateAnimalsGlutamic AcidHippocampusInterneuronsSynapsesGlutamic AcidReceptors, Metabotropic GlutamateADHDdopaminergic systemElfn1Elfn2habenular circuitinhibitory interneuronsmGluR7PTSD

Identifiers

PMID33790745
PMCPMC8005653
OpenAlexW3136053951

What OpenQuestion holds

Textmetadata
LicenceCC BY
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 OpenQuestion graph.