Evidence map›Paper›PMID 16740609›Full record

ArticleThe Journal of physiology2006

mGluR1/5 subtype-specific calcium signalling and induction of long-term potentiation in rat hippocampal oriens/alveus interneurones.

Lisa Topolnik, Mounia Azzi, France Morin, André Kougioumoutzakis, Jean-Claude Lacaille

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

60 citing papers in PubMed, 119 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Parvalbumin interneuron mGluNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Article
  5. Parvalbumin interneuron mGlubioRxiv : the preprint server for biology · 2024
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Mechanisms Underlying Long-Term Synaptic Zinc Plasticity at Mouse Dorsal Cochlear Nucleus Glutamatergic Synapses.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  14. How TRPC Channels Modulate Hippocampal Function.International journal of molecular sciences · 2020
    Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Article
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

5 authors at 1 institution in 1 country.

Lisa TopolnikDépartement de Physiologie, Centre de Recherche en Sciences Neurologiques, Université de Montréal, Case Postale 6128, Succursale Centre-Ville, Montréal, Qc, Canada H3C 3J7.
Mounia Azzi
France Morin
André Kougioumoutzakis
Jean-Claude Lacaille
Université de Montréal · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hippocampal inhibitory interneurones demonstrate pathway- and synapse-specific rules of transmission and plasticity, which are key determinants of their role in controlling pyramidal cell excitability. Mechanisms underlying long-term changes at interneurone excitatory synapses, despite their importance, remain largely unknown. We use two-photon calcium imaging and whole-cell recordings to determine the Ca2+ signalling mechanisms linked specifically to group I metabotropic glutamate receptors (mGluR1alpha and mGluR5) and their role in hebbian long-term potentiation (LTP) in oriens/alveus (O/A) interneurones. We demonstrate that mGluR1alpha activation elicits dendritic Ca2+ signals resulting from Ca2+ influx via transient receptor potential (TRP) channels and Ca2+ release from intracellular stores. By contrast, mGluR5 activation produces dendritic Ca2+ transients mediated exclusively by intracellular Ca2+ release. Using Western blot analysis and immunocytochemistry, we show mGluR1alpha-specific extracellular signal-regulated kinase (ERK1/2) activation via Src in CA1 hippocampus and, in particular, in O/A interneurones. Moreover, we find that mGluR1alpha/TRP Ca2+ signals in interneurone dendrites are dependent on activation of the Src/ERK cascade. Finally, this mGluR1alpha-specific Ca2+ signalling controls LTP at interneurone synapses since blocking either TRP channels or Src/ERK and intracellular Ca2+ release prevents LTP induction. Thus, our findings uncover a novel molecular mechanism of interneurone-specific Ca2+ signalling, critical in regulating synaptic excitability in hippocampal networks.

Indexed as

Calcium SignalingAnimalsBenzoatesCalciumExcitatory Amino Acid AgonistsExcitatory Amino Acid AntagonistsGlycineHippocampusInterneuronsIn Vitro TechniquesLong-Term PotentiationMembrane PotentialsMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3PyridinesRats3,5-dihydroxyphenylglycine6-methyl-2-(phenylethynyl)pyridinealpha-methyl-4-carboxyphenylglycineBenzoatesCalciumExcitatory Amino Acid AgonistsExcitatory Amino Acid AntagonistsGlycineGrm5 protein, ratmetabotropic glutamate receptor type 1Mitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3PyridinesReceptor, Metabotropic Glutamate 5Receptors, Metabotropic GlutamateResorcinolssrc-Family KinasesTRPC Cation Channels

Identifiers

PMID16740609
PMCPMC1819425
OpenAlexW1569654063

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.