Evidence map›Paper›PMID 26718772›Full record

ArticleInternational journal of oncology2016

Blockade of voltage-gated sodium channels inhibits invasion of endocrine-resistant breast cancer cells.

Fatima H Mohammed, Maitham A Khajah, Ming Yang, William J Brackenbury, Yunus A Luqmani

Open access · hybridAbstract read
In one paragraph

Article in International journal of oncology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.9field-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

25 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Article
  3. Effects of NaCell biochemistry and biophysics · 2025
    Review
  4. The Multiscale Wisdom of the Body: Collective Intelligence as a Tractable Interface for Next-Generation Biomedicine.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025
    Review
  5. Article
  6. A novel NaOncogene · 2024
    Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. Ion Transporting Proteins and Cancer: Progress and Perspectives.Reviews of physiology, biochemistry and pharmacology · 2022
    Article
  14. Ion Transport and Radioresistance.Reviews of physiology, biochemistry and pharmacology · 2022
    Review
  15. Review
  16. Review
  17. Review
  18. Nav1.5-E3 antibody inhibits cancer progression.Translational cancer research · 2019
    Article
  19. Article
  20. The influence of sodium on pathophysiology of multiple sclerosis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2017
    Review
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 2 countries.

Fatima H MohammedFaculty of Pharmacy, Kuwait University, Safat 13110, Kuwait.
Maitham A KhajahFaculty of Pharmacy, Kuwait University, Safat 13110, Kuwait.
Ming YangDepartment of Biology, University of York, Heslington, York, YO10 5DD, UK.
William J BrackenburyDepartment of Biology, University of York, Heslington, York, YO10 5DD, UK.
Yunus A LuqmaniFaculty of Pharmacy, Kuwait University, Safat 13110, Kuwait.
Kuwait University · KWUniversity of York · GB

Funding

Medical Research Council G1000508
6 · The paper itself

Abstract

Voltage-gated Na+ channels (VGSCs) are membrane proteins which are normally expressed in excitable cells but have also been detected in cancer cells, where they are thought to be involved in malignancy progression. In this study we examined the ion current and expression profile of VGSC (Nav1.5) in estrogen receptor (ER)-positive (MCF-7) and silenced (pII) breast cancer cells and its possible influence on their proliferation, motility and invasion. VGSC currents were analysed by whole cell patch clamp recording. Nav1.5 expression and localization, in response to EGF stimulation, was examined by western blotting and immunofluorescence respectively. Cell invasion (under-agarose and Matrigel assays), motility (wound healing assay) and proliferation (MTT assay) were assessed in pII cells in response to VGSC blockers, phenytoin (PHT) and tetrodotoxin (TTX), or by siRNA knockdown of Nav1.5. The effect of PHT and TTX on modulating EGF-induced phosphorylation of Akt and ERK1/2 was determined by western blotting. Total matrix metalloproteinase (MMP) was determined using a fluorometric-based activity assay. The level of various human proteases was detected by using proteome profiler array kit. VGSC currents were detected in pII cells, but were absent in MCF-7. Nav1.5 showed cytoplasmic and perinuclear expression in both MCF-7 and pII cells, with enhanced expression upon EGF stimulation. Treatment of pII cells with PHT, TTX or siRNA significantly reduced invasion towards serum components and EGF, in part through reduction of P-ERK1/2 and proteases such as cathepsin E, kallikrein-10 and MMP-7, as well as total MMP activity. At high concentrations, PHT inhibited motility while TTX reduced cell proliferation. Pharmacological or genetic blockade of Nav1.5 may serve as a potential anti-metastatic therapy for breast cancer.

Indexed as

Breast NeoplasmsCell MovementCell ProliferationEstrogen Receptor alphaFemaleGene Expression Regulation, NeoplasticHumansMCF-7 CellsNAV1.5 Voltage-Gated Sodium ChannelNeoplasm InvasivenessPatch-Clamp TechniquesPhenytoinTetrodotoxinEstrogen Receptor alphaNAV1.5 Voltage-Gated Sodium ChannelPhenytoinSCN5A protein, humanTetrodotoxin

Identifiers

PMID26718772
PMCPMC4734602
OpenAlexW2118175868

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.