Evidence map›Paper›PMID 18163202›Full record

ArticlePharmaceutical research2008

Myosin light chain kinase inhibition: correction of increased intestinal epithelial permeability in vitro.

Linda M Feighery, Sean W Cochrane, Teresa Quinn, Alan W Baird, Daniel O'Toole, Sian-Eleri Owens, Diarmuid O'Donoghue, Randall J Mrsny, David J Brayden

Abstract read
PubMed Publisher
In one paragraph

Article in Pharmaceutical research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.5field-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

33 citing papers in PubMed, 69 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Ion transport and epithelial barrier dysfunction in experimental models of ulcerative colitis.American journal of physiology. Gastrointestinal and liver physiology · 2025
    Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Cell-Cell Junctions Organize Structural and Signaling Networks.Cold Spring Harbor perspectives in biology · 2018
    Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  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

9 authors at 3 institutions in 2 countries.

Linda M FeigherySchool of Agriculture, Food Science and Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
Sean W Cochrane
Teresa Quinn
Alan W Baird
Daniel O'Toole
Sian-Eleri Owens
Diarmuid O'Donoghue
Randall J Mrsny
David J Brayden
University College Dublin · IECardiff University · GBSt. Vincent's University Hospital · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo examine whether myosin light chain kinase (MLCK) inhibitors can reduce intestinal epithelial permeability increases in vitro. MATERIALS AND

methodsIsolated rat, mouse and human colonic tissue mucosae and Caco-2 monolayers were exposed to cytochalasin D (cD) and sodium caprate (C10), in the absence and presence of the MLCK inhibitors, ML-9 and D PIK. Transepithelial electrical resistance (TEER) and Papp of [14C]-mannitol or FITC-dextran 4000 (FD-4) were measured. Western blots were used to measure MLC phosphorylation.

resultsIncreases in Papp of [14C]-mannitol and decreases in TEER were induced by tight junction openers. These changes were attenuated by ML-9. D-PIK offset the FD-4 Papp increase induced by C10 in Caco-2 only, while ML-9 and PIK inhibited MLC directly, cD induced constriction of peri-junctional actin in Caco-2 monolayers, but this was prevented by ML-9. Although mannitol fluxes across colonic mucosae from dextran-sulphate (DSS)-treated mice were higher than control, they were not ameliorated by either ML-9 or PIK in vitro.

conclusionsML-9 inhibits paracellular permeability increases in several intestinal epithelial models. D-PIK reduced stimulated paracellular fluxes in Caco-2 monolayers, but not in tissue. Pre-established increases were not modified by two MLCK inhibitors in a mouse model of IBD.

Indexed as

AnimalsBlotting, WesternElectric ImpedanceHumansInflammatory Bowel DiseasesIntestinal MucosaMaleMannitolMiceMyosin-Light-Chain KinasePermeabilityPhosphorylationProtein Kinase InhibitorsRatsRats, WistarMannitolMyosin-Light-Chain KinaseProtein Kinase Inhibitors

Identifiers

PMID18163202
OpenAlexW2054478082

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.