Evidence map›Paper›PMID 10632599›Full record

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

Intermediate zone cells express calcium-permeable AMPA receptors and establish close contact with growing axons.

C Métin, J P Denizot, N Ropert

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 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.2field-weighted citation impact, top 10% 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

24 citing papers in PubMed, 86 citations in OpenAlex.

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  7. AMPA glutamate receptors are required for sensory-organ formation and morphogenesis in the basal chordate.Proceedings of the National Academy of Sciences of the United States of America · 2017
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  14. Integrative mechanisms of oriented neuronal migration in the developing brain.Annual review of cell and developmental biology · 2013
    Review
  15. Article
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  18. Article
  19. Glutamate acting on AMPA but not NMDA receptors modulates the migration of hippocampal interneurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2006
    Article
  20. Subpallial origin of a population of projecting pioneer neurons during corticogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2003
    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

3 authors at 2 institutions in 1 country.

C MétinEquipe Régionalisation Nerveuse, Centre National de la Recherche Scientifique (CNRS) Unité Mixte de Recherche 8542, Niveau 8, Ecole Normale Supérieure, 75230 Paris Cédex 05, France. metin@biologie.ens.fr
J P Denizot
N Ropert
Centre National de la Recherche Scientifique · FRÉcole Normale Supérieure - PSL · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent studies have shown that cells in the intermediate zone (IZ) of the embryonic neocortex originate in the basal telencephalon and migrate tangentially in the cortical wall (;; ). We had previously observed growing cortical axons closely apposed to calbindin-positive, tangentially oriented cells in the IZ (), and it has been shown that neurites in the IZ express a glutamate transporter (). To test if glutamate released by corticofugal growth cones could influence the tangential IZ cells, we characterized the glutamate receptors expressed by IZ cells using patch-clamp techniques, histochemical labeling, and immunostaining on slices of embryonic mice forebrain. We show that tangential IZ cells express inwardly rectifying kainate responses, but not NMDA responses, and accumulate cobalt after AMPA receptor activation. We conclude that IZ cells express calcium-permeable AMPA receptors. This property correlates with our observation that the GluR2 subunit is not expressed in the IZ. AMPA receptors are activated by a millimolar concentration of glutamate. To know whether this high level of glutamate could occur at the surface of IZ cells, we examined contacts made by corticofugal growth cones and calbindin-positive IZ cells using electron microscopy. We show vesicle-containing neurites tightly apposed to calbindin-positive IZ cells over remarkably long length. This suggests that glutamate released by growing corticofugal axons could reach high concentrations close to AMPA receptors of tangential IZ cells and efficiently activate them to control the intracellular calcium in embryonic IZ cells.

Indexed as

Action PotentialsAnimalsAxonsBenzodiazepinesBiological TransportCalbindinsCalciumCerebral CortexCobaltExcitatory Amino Acid Antagonistsgamma-Aminobutyric AcidGestational AgeIn Vitro TechniquesKainic AcidMiceMice, Inbred C57BLBenzodiazepinesCalbindinsCalciumCobaltExcitatory Amino Acid AntagonistsFG 9041gamma-Aminobutyric AcidGYKI 53784Kainic AcidN-MethylaspartateQuinoxalinesReceptors, AMPAS100 Calcium Binding Protein GTetrodotoxin

Identifiers

PMID10632599
PMCPMC6772402
OpenAlexW2121319452

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.