Evidence map›Paper›PMID 7478936›Full record

ArticlePflugers Archiv : European journal of physiology1995

Polarized ion transport during migration of transformed Madin-Darby canine kidney cells.

A Schwab, K Gabriel, F Finsterwalder, G Folprecht, R Greger, A Kramer, H Oberleithner

Abstract read
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In one paragraph

Article in Pflugers Archiv : European journal of physiology, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

29 citing papers in PubMed, 63 citations in OpenAlex.

  1. pH-regulated single cell migration.Pflugers Archiv : European journal of physiology · 2024
    Review
  2. Ion Channels in Cancer: Orchestrators of Electrical Signaling and Cellular Crosstalk.Reviews of physiology, biochemistry and pharmacology · 2022
    Review
  3. Review
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  13. The role of TMEM16A (ANO1) and TMEM16F (ANO6) in cell migration.Pflugers Archiv : European journal of physiology · 2013
    Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Functional KCa3.1 K+ channels are required for human fibrocyte migration.The Journal of allergy and clinical immunology · 2011
    Article
  19. Review
  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 2 institutions in 1 country.

A SchwabPhysiologisches Institut, Röntgenring 9, D-97070 Würzburg, Germany.
K Gabriel
F Finsterwalder
G Folprecht
R Greger
A Kramer
H Oberleithner
University of Würzburg · DEUniversity of Freiburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Epithelial cells lose their usual polarization during carcinogenesis. Although most malignant tumours are of epithelial origin little is known about ion channels in carcinoma cells. Previously, we observed that migration of transformed Madin-Darby canine kidney (MDCK-F) cells depended on oscillating K+ channel activity. In the present study we examined whether periodic K+ channel activity may cause changes of cell volume, and whether K+ channel activity is distributed in a uniform way in MDCK-F cells. After determining the average volume of MDCK-F cells (2013+/-270 microm3; n=8) by means of atomic force microscopy we deduced volume changes by calculating the K+ efflux during bursts of K+ channel activity. Therefore, we measured the membrane conductance of MDCK-F cells which periodically rose by 22.3+/-2.5 nS from a resting level of 6.5+/-1.4 nS (n=12), and we measured the membrane potential which hyperpolarized in parallel from -35.4+/-1.2 mV to -71.6+/-1.8 mV (n=11). The distribution of K+ channel activity was assessed by locally superfusing the front or rear end of migrating MDCK-F cells with the K+ channel blocker charybdotoxin (CTX). Only exposure of the rear end to CTX inhibited migration providing evidence for "horizontal" polarization of K+ channel activity in transformed MDCK-F cells. This is in contrast to the "vertical" polarization in parent MDCK cells. We propose that the asymmetrical distribution of K+ channel activity is a prerequisite for migration of MDCK-F cells.

Indexed as

AnimalsCell Line, TransformedCell MembraneCell MovementCell PolarityCell SizeCharybdotoxinDogsKidneyMembrane PotentialsMicroscopy, Atomic ForcePotassiumPotassium ChannelsCharybdotoxinPotassiumPotassium Channels

Identifiers

PMID7478936
OpenAlexW2081250711

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.