Evidence map›Paper›PMID 25023607›Full record

ReviewTrends in pharmacological sciences2014

Altered and dynamic ion selectivity of K+ channels in cell development and excitability.

Haijun Chen, Franck C Chatelain, Florian Lesage

Abstract readReview
In one paragraph

Review in Trends in pharmacological sciences, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
2.1field-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

26 citing papers in PubMed, 37 citations in OpenAlex.

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  8. Constitutive sodium permeability in aProceedings of the National Academy of Sciences of the United States of America · 2024
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  9. Estimating the CaMethods in molecular biology (Clifton, N.J.) · 2024
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  11. Review
  12. Genetically-encoded BRET probes shed light on ligand bias-induced variable ion selectivity in TRPV1 and P2X5/7.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
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  15. Bicarbonate permeation through anion channels: its role in health and disease.Pflugers Archiv : European journal of physiology · 2020
    Review
  16. Article
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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.

Haijun ChenDepartment of Biological Sciences, University at Albany, State University of New York, Albany, NY 12222, USA. Electronic address: hchen01@albany.edu.
Franck C ChatelainInstitut de Pharmacologie Moléculaire et Cellulaire, LabEx Ion Channel Science and Therapeutics, Centre National de la Recherche Scientifique, and Université de Nice Sophia Antipolis, 660 Route des Lucioles, 06560 Valbonne, France.
Florian LesageInstitut de Pharmacologie Moléculaire et Cellulaire, LabEx Ion Channel Science and Therapeutics, Centre National de la Recherche Scientifique, and Université de Nice Sophia Antipolis, 660 Route des Lucioles, 06560 Valbonne, France. Electronic address: lesage@ipmc.cnrs.fr.
Centre National de la Recherche Scientifique · FRInstitut de Pharmacologie Moléculaire et Cellulaire · FR

Funding

Dynamic ion selectivity of K2P channels and paradoxical depolarizationR01GM102943 · NIGMS · STATE UNIVERSITY OF NEW YORK AT ALBANY · PI CHEN, HAIJUN · 2012 to 2016
$1.4M
NIGMS NIH HHS 1R01GM102943-01A1NIGMS NIH HHS R01 GM102943
6 · The paper itself

Abstract

K(+) channels play a key role in regulating cellular excitability. It was thought that the strong K(+) selectivity of these channels was static, only altered by mutations in their selectivity filter, which can cause severe genetic disorders. Recent studies demonstrate that selectivity of K(+) channels can also exhibit dynamic changes. Under acidic conditions or in low extracellular K(+) concentrations, the two-pore domain K(+) channel (K2P) TWIK1 becomes permeable to Na(+), shifting from an inhibitory role to an excitatory role. This phenomenon is responsible for the paradoxical depolarization of human cardiomyocytes in pathological hypokalemia, and therefore may contribute to cardiac arrhythmias. In other cell types, TWIK1 produces depolarizing leak currents under physiological conditions. Dynamic ion selectivity also occurs in other K2P channels. Here we review evidence that dynamic selectivity of K2P channels constitutes a new regulatory mechanism of cellular excitability, whose significance is only now becoming appreciated.

Indexed as

AnimalsCell DifferentiationHumansHydrogen-Ion ConcentrationHypokalemiaMutationMyocytes, CardiacPotassium Channels, Tandem Pore DomainKCNK1 protein, humanPotassium Channels, Tandem Pore Domaincationic channelschannelopathiesdynamic ion selectivityexcitabilityhypokalemiaionic poreK(2P) channelspH-sensitiveresting potential

Identifiers

PMID25023607
PMCPMC4467785
OpenAlexW1992150086

What OpenQuestion holds

Textmetadata
LicenceTDM
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.