Evidence map›Paper›PMID 20884640›Full record

ArticleCardiovascular research2011

Potent suppression of vascular smooth muscle cell migration and human neointimal hyperplasia by KV1.3 channel blockers.

Alex Cheong, Jing Li, Piruthivi Sukumar, Bhaskar Kumar, Fanning Zeng, Kirsten Riches, Christopher Munsch, Ian C Wood, Karen E Porter, David J Beech

Open access · hybridAbstract read
In one paragraph

Article in Cardiovascular research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

32 citing papers in PubMed, 59 citations in OpenAlex.

  1. Review
  2. Review
  3. Effects of β-adrenoceptor antagonist and 5-HTThe Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2025
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  8. Large-conductance CaFrontiers in cardiovascular medicine · 2022
    Article
  9. Article
  10. Review
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  12. Article
  13. Voltage-Gated Potassium Channels as Regulators of Cell Death.Frontiers in cell and developmental biology · 2020
    Review
  14. Article
  15. Article
  16. Diabetes Mellitus and Ischemic Heart Disease: The Role of Ion Channels.International journal of molecular sciences · 2018
    Review
  17. Angiotensin II reduces the surface abundance of KThe Journal of physiology · 2017
    Article
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Alex CheongMultidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds LS2 9JT, UK.
Jing Li
Piruthivi Sukumar
Bhaskar Kumar
Fanning Zeng
Kirsten Riches
Christopher Munsch
Ian C Wood
Karen E Porter
David J Beech
University of Leeds · GBLeeds General Infirmary · GB

Funding

British Heart FoundationMedical Research Council G0901761Medical Research Council G1002076Wellcome Trust
6 · The paper itself

Abstract

aimThe aim of the study was to determine the potential for K(V)1 potassium channel blockers as inhibitors of human neoinitimal hyperplasia. METHODS AND

resultsBlood vessels were obtained from patients or mice and studied in culture. Reverse transcriptase-polymerase chain reaction and immunocytochemistry were used to detect gene expression. Whole-cell patch-clamp, intracellular calcium measurement, cell migration assays, and organ culture were used to assess channel function. K(V)1.3 was unique among the K(V)1 channels in showing preserved and up-regulated expression when the vascular smooth muscle cells switched to the proliferating phenotype. There was strong expression in neointimal formations. Voltage-dependent potassium current in proliferating cells was sensitive to three different blockers of K(V)1.3 channels. Calcium entry was also inhibited. All three blockers reduced vascular smooth muscle cell migration and the effects were non-additive. One of the blockers (margatoxin) was highly potent, suppressing cell migration with an IC(50) of 85 pM. Two of the blockers were tested in organ-cultured human vein samples and both inhibited neointimal hyperplasia.

conclusionK(V)1.3 potassium channels are functional in proliferating mouse and human vascular smooth muscle cells and have positive effects on cell migration. Blockers of the channels may be useful as inhibitors of neointimal hyperplasia and other unwanted vascular remodelling events.

Indexed as

AnimalsAorta, ThoracicCalciumCell MovementCell ProliferationCells, CulturedDose-Response Relationship, DrugFicusinHumansHyperplasiaImmunohistochemistryKv1.3 Potassium ChannelMaleMembrane PotentialsMiceMice, Inbred C57BL5-(4-phenylbutoxy)psoralenCalciumcorreolideFicusinKCNA3 protein, humanKcna3 protein, mouseKv1.3 Potassium ChannelmargatoxinPotassium Channel BlockersRNA, MessengerScorpion VenomsTriterpenes

Identifiers

PMID20884640
PMCPMC3020133
OpenAlexW2053483203

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.