Evidence map›Paper›PMID 11102477›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2000

Dendritic and axonal targeting of type 5 metabotropic glutamate receptor is regulated by homer1 proteins and neuronal excitation.

F Ango, J P Pin, J C Tu, B Xiao, P F Worley, J Bockaert, L Fagni

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed, 1 pooled it
6.6field-weighted citation impact, top 2% 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

89 citing papers in PubMed, 1 synthesis or guideline pooled it, 227 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Loss of mGluMolecular psychiatry · 2024
    Article
  7. mGluR5 PAMs rescue cortical and behavioural defects in a mouse model of CDKL5 deficiency disorder.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023
    Article
  8. Functional maturation of human iPSC-derived pyramidal neuronsFrontiers in cellular neuroscience · 2023
    Article
  9. Article
  10. Modulation of Hippocampal Network Oscillation by PICK1-Dependent Cell Surface Expression of mGlu3 Receptors.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Metabotropic glutamate receptor trafficking.Molecular and cellular neurosciences · 2018
    Review
  18. Review
  19. Article
  20. Article

29 more citing papers are in PubMed but not listed here.

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

7 authors at 3 institutions in 2 countries.

F AngoCentre National de la Recherche Scientifique UPR9023, Mécanisme Moléculaires des Communications cellulaires, 34094 Montpellier Cedex 5, France. fagni@ccipe.montp.inserm.r
J P Pin
J C Tu
B Xiao
P F Worley
J Bockaert
L Fagni
Laboratoire de Génétique Cellulaire · FRJohns Hopkins University · USJohns Hopkins Medicine · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The physiological actions of neurotransmitter receptors are intimately linked to their proper neuronal compartment localization. Here we studied the effect of the metabotropic glutamate receptor (mGluR)-interacting proteins, Homer1a, b, and c, in the targeting of mGluR5 in neurons. We found that mGluR5 was exclusively localized in cell bodies when transfected alone in cultured cerebellar granule cells. In contrast, mGluR5 was found also in dendrites when coexpressed with Homer1b or Homer1c, and in both dendrites and axons when cotransfected with Homer1a. In dendrites, cotransfected mGluR5 and Homer1b/c formed clusters that colocalized with the synaptic marker synaptophysin. Interestingly when transfected alone, the Homer proteins were also translocated to neurites but did not form such clusters. Depolarization of the neurons with a mixture of ionotropic glutamate receptor agonists, NMDA and kainate, or potassium channel blockers, tetraethylammonium and 4-aminopyridine, induced transient expression of endogenous Homer1a and persistent neuritic localization of transfected mGluR5 even long after degradation of Homer1a. These results suggest that Homer1a/b/c proteins are involved in the targeting of mGluR5 to dendritic synaptic sites and/or axons and that this effect can be regulated by neuronal activity. Because the activity-dependent effect of endogenous Homer1a was also long-lasting, the axonal targeting of mGluR5 by this protein is likely to play an important role in synaptic plasticity.

Indexed as

AnimalsAxonsCarrier ProteinsCells, CulturedCerebellumCorpus StriatumDendritesExcitatory Amino Acid AgonistsHomer Scaffolding ProteinsHumansKainic AcidMiceNeuritesNeuronal PlasticityNeuronsNeuropeptidesCarrier ProteinsExcitatory Amino Acid AgonistsGRM5 protein, humanGrm5 protein, mouseHOMER1 protein, humanHomer1 protein, mouseHomer Scaffolding ProteinsKainic AcidNeuropeptidesN-MethylaspartatePotassium Channel BlockersProtein IsoformsReceptor, Metabotropic Glutamate 5Receptors, Metabotropic GlutamateRecombinant ProteinsSynaptophysin

Identifiers

PMID11102477
PMCPMC6773061
OpenAlexW1946755838

What OpenQuestion holds

Textmetadata
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.