Evidence map›Paper›PMID 22763697›Full record

ArticleCellular and molecular life sciences : CMLS2013

GSK3 and β-catenin determines functional expression of sodium channels at the axon initial segment.

Mónica Tapia, Ana Del Puerto, Alberto Puime, Diana Sánchez-Ponce, Laure Fronzaroli-Molinieres, Noemí Pallas-Bazarra, Edmond Carlier, Pierre Giraud, Dominique Debanne, Francisco Wandosell and 1 more

Open access · greenAbstract read
In one paragraph

Article in Cellular and molecular life sciences : CMLS, 2013. 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
1.2field-weighted citation impact, top 22% 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, 41 citations in OpenAlex.

  1. Review
  2. Article
  3. Inhibition of the GSK3β/Nav1.6 complex suppresses early-stage Alzheimer's hyperexcitability.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  4. Review
  5. Review
  6. Review
  7. CDK5/p35-Dependent Microtubule Reorganization Contributes to Homeostatic Shortening of the Axon Initial Segment.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  8. Glycogen Synthase Kinase 3: Ion Channels, Plasticity, and Diseases.International journal of molecular sciences · 2022
    Review
  9. Article
  10. Article
  11. Structural and Functional Refinement of the Axon Initial Segment in Avian Cochlear Nucleus during Development.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  12. Review
  13. Article
  14. The Axon Initial Segment: An Updated Viewpoint.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Review
  15. Article
  16. Article
  17. Article
  18. Article
  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

11 authors at 4 institutions in 2 countries.

Mónica TapiaDepartment of Cellular, Molecular and Developmental Neurobiology, Instituto Cajal, CSIC, Avenida Doctor Arce, Madrid, 28002, Spain.
Ana Del Puerto
Alberto Puime
Diana Sánchez-Ponce
Laure Fronzaroli-Molinieres
Noemí Pallas-Bazarra
Edmond Carlier
Pierre Giraud
Dominique Debanne
Francisco Wandosell
Juan José Garrido
Aix-Marseille Université · FRBiomedical Research Networking Center on Neurodegenerative Diseases · ESInstituto Cajal · ESHospital Universitario Fundación Jiménez Díaz · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neuronal action potentials are generated through voltage-gated sodium channels, which are tethered by ankyrinG at the membrane of the axon initial segment (AIS). Despite the importance of the AIS in the control of neuronal excitability, the cellular and molecular mechanisms regulating sodium channel expression at the AIS remain elusive. Our results show that GSK3α/β and β-catenin phosphorylated by GSK3 (S33/37/T41) are localized at the AIS and are new components of this essential neuronal domain. Pharmacological inhibition of GSK3 or β-catenin knockdown with shRNAs decreased the levels of phosphorylated-β-catenin, ankyrinG, and voltage-gated sodium channels at the AIS, both "in vitro" and "in vivo", therefore diminishing neuronal excitability as evaluated via sodium current amplitude and action potential number. Thus, our results suggest a mechanism for the modulation of neuronal excitability through the control of sodium channel density by GSK3 and β-catenin at the AIS.

Indexed as

Action PotentialsAnimalsAnkyrinsAxonsbeta CateninGlycogen Synthase Kinase 3MiceMicrotubulesPhosphorylationRNA InterferenceVoltage-Gated Sodium ChannelsAnk3 protein, mouseAnkyrinsbeta CateninGlycogen Synthase Kinase 3Voltage-Gated Sodium Channels

Identifiers

PMID22763697
PMCPMC11113494
OpenAlexW2087339140

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.