Evidence map›Paper›PMID 9094978›Full record

ArticleThe American journal of pathology1997

Expression and functional analysis of voltage-activated Na+ channels in human prostate cancer cell lines and their contribution to invasion in vitro.

M E Laniado, E N Lalani, S P Fraser, J A Grimes, G Bhangal, M B Djamgoz, P D Abel

Abstract read
In one paragraph

Article in The American journal of pathology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

88 citing papers in PubMed, 201 citations in OpenAlex.

  1. Article
  2. Voltage-gated NaPflugers Archiv : European journal of physiology · 2025
    Article
  3. Article
  4. Review
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  6. Anti-Algics in the Therapeutic Response of Breast and Urological Cancers.International journal of molecular sciences · 2023
    Observational
  7. Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Review
  13. Ion Transporting Proteins and Cancer: Progress and Perspectives.Reviews of physiology, biochemistry and pharmacology · 2022
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. CCR2-targeted micelles for anti-cancer peptide delivery and immune stimulation.Journal of controlled release : official journal of the Controlled Release Society · 2021
    Article
  19. Article
  20. Rock inhibition promotes NaScientific reports · 2020
    Article

28 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

M E LaniadoDepartment of Surgery, Royal Postgraduate Medical School, London, United Kingdom.
E N Lalani
S P Fraser
J A Grimes
G Bhangal
M B Djamgoz
P D Abel
Royal Victoria Hospital · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ion channels are important for many cellular functions and disease states including cystic fibrosis and multidrug resistance. Previous work in the Dunning rat model of prostate cancer has suggested a relationship between voltage-activated Na+ channels (VASCs) and the invasive phenotype in vitro. The objectives of this study were to 1) evaluate the expression of VASCs in the LNCaP and PC-3 human prostate cancer cell lines by Western blotting, flow cytometry, and whole-cell patch clamping, 2) determine their role in invasion in vitro using modified Boyden chambers with and without a specific blocker of VASCs (tetrodotoxin). A 260-kd protein representing VASCs was found only in the PC-3 cell line, and these were shown to be membrane expressed on flow cytometry. Patch clamping studies indicated that functional VASCs were present in 10% of PC-3 cells and blocking these by tetrodotoxin (600 nmol/L) reduced their invasiveness by 31% (P = 0.02) without affecting the invasiveness of the LNCaP cells. These results indicate that the reduction of invasion is a direct result of VASC blockade and not a nonspecific action of the drug. This is the first report of VASCs in a human prostatic cell line. VASCs are present in PC-3 but not LNCaP cells as determined by both protein and functional studies. Tetrodotoxin reduced the invasiveness of PC-3 but not LNCaP cells, and these data suggest that ion channels may play an important functional role in tumor invasion.

Indexed as

AnimalsBlotting, WesternBrainCarcinomaDiffusion Chambers, CultureElectrophysiologyFlow CytometryHumansMaleNeoplasm InvasivenessPatch-Clamp TechniquesProstatic NeoplasmsRatsSodium ChannelsTetrodotoxinTumor Cells, CulturedSodium ChannelsTetrodotoxin

Identifiers

PMID9094978
PMCPMC1858184
OpenAlexW54255267

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.