Evidence map›Paper›PMID 20649599›Full record

ArticleBritish journal of pharmacology2010

Effect of the I(to) activator NS5806 on cloned K(V)4 channels depends on the accessory protein KChIP2.

A Lundby, T Jespersen, N Schmitt, M Grunnet, S-P Olesen, J M Cordeiro, K Calloe

Open access · greenAbstract read
In one paragraph

Article in British journal of pharmacology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.9field-weighted citation impact, top 13% 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

27 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Modulation of KInternational journal of molecular sciences · 2022
    Article
  5. Inducing IJournal of molecular and cellular cardiology · 2022
    Article
  6. Kv4.3 Channel Dysfunction Contributes to Trigeminal Neuropathic Pain Manifested with Orofacial Cold Hypersensitivity in Rats.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  7. Pharmacological Approaches for the Modulation of the Potassium Channel KInternational journal of molecular sciences · 2021
    Review
  8. Review
  9. Auxiliary subunits control biophysical properties and response to compound NS5806 of the Kv4 potassium channel complex.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  10. Article
  11. Article
  12. KThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  13. Article
  14. Article
  15. Review
  16. Review
  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

7 authors at 3 institutions in 2 countries.

A LundbyThe Danish National Research Foundation Centre for Cardiac Arrhythmia, Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark.
T Jespersen
N Schmitt
M Grunnet
S-P Olesen
J M Cordeiro
K Calloe
University of Copenhagen · DKDanish National Research Foundation · DKMasonic Medical Research Laboratory · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeThe compound NS5806 increases the transient outward current (I(to)) in canine ventricular cardiomyocytes and slows current decay. In human and canine ventricle, I(to) is thought to be mediated by K(V)4.3 and various ancillary proteins, yet, the exact subunit composition of I(to) channels is still debated. Here we characterize the effect of NS5806 on heterologously expressed putative I(to) channel subunits and other potassium channels. EXPERIMENTAL APPROACH: Cloned K(V)4 channels were co-expressed with KChIP2, DPP6, DPP10, KCNE2, KCNE3 and K(V)1.4 in Xenopus laevis oocytes or CHO-K1 cells. KEY

resultsNS5806 increased K(V)4.3/KChIP2 peak current amplitudes with an EC(50) of 5.3 +/- 1.5microM and significantly slowed current decay. KCNE2, KCNE3, DPP6 and DPP10 modulated K(V)4.3 currents and the response to NS5806, but current decay was slowed only in complexes containing KChIP2. The effect of NS5806 on K(V)4.2 was similar to that on K(V)4.3, and current decay was only slowed in presence of KChIP2. However, for K(V)4.1, the slowing of current decay by NS5806 was independent of KChIP2. K(V)1.4 was strongly inhibited by 10 microM NS5806 and K(V)1.5 was inhibited to a smaller extent. Effects of NS5806 on kinetics of currents generated by K(V)4.3/KChIP2/DPP6 with K(V)1.4 in oocytes could reproduce those on cardiac I(to) in canine ventricular myocytes. K(V)7.1, K(V)11.1 and K(ir)2 currents were unaffected by NS5806. CONCLUSION AND IMPLICATIONS: NS5806 modulated K(V)4 channel gating depending on the presence of KChIP2, suggesting that NS5806 can potentially be used to address the molecular composition as well as the physiological role of cardiac I(to).

Indexed as

AnimalsCHO CellsCloning, MolecularCricetinaeCricetulusDipeptidyl-Peptidases and Tripeptidyl-PeptidasesHumansIon Channel GatingKineticsKv1.4 Potassium ChannelKv Channel-Interacting ProteinsMembrane PotentialsNerve Tissue ProteinsPhenylurea CompoundsPotassiumPotassium Channels1-(3,5-bis-trifluoromethylphenyl)-3-(2,4-dibromo-6-(1H-tetrazol-5-yl)phenyl)ureaDipeptidyl-Peptidases and Tripeptidyl-PeptidasesDPP10 protein, humanDPP6 protein, humanKCND1 protein, humanKCND2 protein, humanKCND3 protein, humanKCNE2 protein, humanKCNE3 protein, humanKCNIP2 protein, humanKv1.4 Potassium ChannelKv Channel-Interacting ProteinsNerve Tissue ProteinsPhenylurea CompoundsPotassiumPotassium ChannelsPotassium Channels, Voltage-GatedShal Potassium ChannelsTetrazoles

Identifiers

PMID20649599
PMCPMC2958647
OpenAlexW2163863321

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.