Evidence map›Paper›PMID 15647496›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2005

Specific modulation of Na+ channels in hippocampal neurons by protein kinase C epsilon.

Yuan Chen, Angela R Cantrell, Robert O Messing, Todd Scheuer, William A Catterall

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

33 citing papers in PubMed, 73 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Muscarinic receptors modulate dendrodendritic inhibitory synapses to sculpt glomerular output.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    Article
  7. Increased BDNF protein expression after ischemic or PKC epsilon preconditioning promotes electrophysiologic changes that lead to neuroprotection.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2015
    Article
  8. Neuromodulation of neurons and synapses.Current opinion in neurobiology · 2014
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Lymphocyte cell kinase activation mediates neuroprotection during ischemic preconditioning.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2012
    Article
  15. Neuroprotection: lessons from hibernators.Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology · 2012
    Review
  16. Article
  17. Article
  18. Regulation of sodium channel activity by phosphorylation.Seminars in cell & developmental biology · 2011
    Review
  19. Review
  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 2 institutions in 1 country.

Yuan ChenDepartment of Pharmacology, University of Washington, Seattle, Washington 98195-7280, USA.
Angela R Cantrell
Robert O Messing
Todd Scheuer
William A Catterall
University of Washington · USErnest Gallo Clinic and Research Center · US

Funding

VOLTAGE-SENSITIVE SODIUM CHANNELS IN BRAINR01NS015751 · NINDS · UNIVERSITY OF WASHINGTON · PI CATTERALL, WILLIAM A · 1985 to 2018
$6.0M
MODULATION OF SODIUM CURRENT AND NEUROLOGICAL DISEASEK01MH001669 · NIMH · UNIVERSITY OF WASHINGTON · PI CANTRELL, ANGELA R · 1999 to 2003
$507k
NIMH NIH HHS K01 MH01669NINDS NIH HHS R01 NS015751NINDS NIH HHS R01 NS15751
6 · The paper itself

Abstract

Acetylcholine binding to muscarinic acetylcholine receptors activates G-proteins, phospholipase C, and protein kinase C (PKC), which phosphorylates brain Na+ channels and reduces peak Na+ current in hippocampal neurons. Because multiple PKC isozymes with different regulatory properties are expressed in hippocampal neurons, we investigated which ones are responsible for mediating this effect. The diacylglycerol analog oleoylacetylglycerol (OAG) reduced the amplitude of Na+ current in dissociated mouse hippocampal neurons by 28.5 +/- 5.3% (p < 0.01). The reduction of peak Na+ current was similar with Ca2+-free internal solution and in 92 nm internal Ca2+, suggesting that calcium-dependent, conventional PKC isozymes were unlikely to mediate this response. Gö6976, which inhibits conventional PKC isozymes, reduced the effect of PKC activators only slightly, whereas rottlerin, which inhibits PKCdelta preferentially at 5 microm, had no effect. Ro-31-8425 (20 nm), which inhibits conventional PKC isozymes, did not reduce the response to OAG. However, higher concentrations of Ro-31-8425 (100 nm or 1 microm) that inhibit novel PKC isozymes effectively blocked OAG inhibition of Na+ current. Inclusion of a selective PKCepsilon-anchoring inhibitor peptide (PKCepsilon-I) in the recording pipette prevented the reduction of peak Na+ current by OAG, whereas an anchoring inhibitor peptide specific for PKCbeta and an inactive scrambled PKCepsilon-I peptide had no effect. In addition, OAG had no effect on Na+ current in hippocampal neurons from PKCepsilon null mice. Overall, our data from four experimental approaches indicate that anchored PKCepsilon is the isozyme responsible for PKC-mediated reduction of peak Na+ currents in mouse hippocampal neurons.

Indexed as

AnimalsDiglyceridesElectrophysiologyEnzyme ActivationHippocampusIn Vitro TechniquesIsoenzymesMaleMiceMice, Inbred C57BLMice, KnockoutNeuronsPeptide FragmentsProtein Kinase CProtein Kinase C-epsilonPyramidal Cells1-oleoyl-2-acetylglycerolDiglyceridesIsoenzymesPeptide FragmentsPrkce protein, mouseProtein Kinase Cprotein kinase C (19-36)Protein Kinase C-epsilonSodium Channels

Identifiers

PMID15647496
PMCPMC6725492
OpenAlexW2163990543

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.