Evidence map›Paper›PMID 19679145›Full record

ArticleToxicology and applied pharmacology2009

Effects of phenol on barrier function of a human intestinal epithelial cell line correlate with altered tight junction protein localization.

Ingrid C McCall, Abigail Betanzos, Dominique A Weber, Porfirio Nava, Gary W Miller, Charles A Parkos

Open access · greenAbstract read
In one paragraph

Article in Toxicology and applied pharmacology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
3.4field-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

50 citing papers in PubMed, 131 citations in OpenAlex.

  1. Trial
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  3. Review
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  6. Article
  7. Dietary Polycan, a β-glucan originating fromFood science & nutrition · 2024
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  8. Review
  9. Efficacy of 2,4-Di-ACS omega · 2024
    Article
  10. Article
  11. Characterization and Biodegradation of Phenol byMolecules (Basel, Switzerland) · 2023
    Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  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

6 authors at 1 institution in 1 country.

Ingrid C McCallDepartment of Environmental and Occupational Health, Rollins School of Public Health, Emory University, Atlanta, GA 30322, USA. icmccal@emory.edu
Abigail Betanzos
Dominique A Weber
Porfirio Nava
Gary W Miller
Charles A Parkos
Emory University · US

Funding

Graduate and Postdoctoral Training in ToxicologyT32ES012870 · NIEHS · EMORY UNIVERSITY · PI Carmen Joseph Marsit · 2004 to 2026
$9.1M
Neutrophil Interactions with Intestinal Epithelial CellsR01DK072564 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PARKOS, CHARLES A · 2005 to 2020
$6.5M
Structure-Function Studies on Intestinal Epithelial JAMR01DK061379 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PARKOS, CHARLES A · 2002 to 2021
$6.3M
Emory Epithelial Pathobiology Research Development CenterR24DK064399 · NIDDK · EMORY UNIVERSITY · PI PARKOS, CHARLES A · 2003 to 2012
$5.3M
NIDDK NIH HHS DK064399NIDDK NIH HHS DK61379NIDDK NIH HHS DK72564NIDDK NIH HHS R01 DK061379NIDDK NIH HHS R01 DK072564NIDDK NIH HHS R24 DK064399NIEHS NIH HHS T32 ES012870
6 · The paper itself

Abstract

Phenol contamination of soil and water has raised concerns among people living near phenol-producing factories and hazardous waste sites containing the chemical. Phenol, particularly in high concentrations, is an irritating and corrosive substance, making mucosal membranes targets of toxicity in humans. However, few data on the effects of phenol after oral exposure exist. We used an in vitro model employing human intestinal epithelial cells (SK-CO15) cultured on permeable supports to examine effects of phenol on epithelial barrier function. We hypothesized that phenol disrupts epithelial barrier by altering tight junction (TJ) protein expression. The dose-response effect of phenol on epithelial barrier function was determined using transepithelial electrical resistance (TER) and FITC-dextran permeability measurements. We studied phenol-induced changes in cell morphology and expression of several tight junction proteins by immunofluorescence and Western blot analysis. Effects on cell viability were assessed by MTT, Trypan blue, propidium iodide and TUNEL staining. Exposure to phenol resulted in decreased TER and increased paracellular flux of FITC-dextran in a dose-dependent manner. Delocalization of claudin-1 and ZO-1 from TJs to cytosol correlated with the observed increase in permeability after phenol treatment. Additionally, the decrease in TER correlated with changes in the distribution of a membrane raft marker, suggesting phenol-mediated effects on membrane fluidity. Such observations were independent of effects of phenol on cell viability as enhanced permeability occurred at doses of phenol that did not cause cell death. Overall, these findings suggest that phenol may affect transiently the lipid bilayer of the cell membrane, thus destabilizing TJ-containing microdomains.

Indexed as

Blotting, WesternCell LineCell SurvivalDextransDose-Response Relationship, DrugElectric ImpedanceEpithelial CellsFluorescein-5-isothiocyanateFluorescent Antibody TechniqueGene Expression RegulationHumansIntestinal MucosaMembrane ProteinsPermeabilityPhenolSoil PollutantsDextransFluorescein-5-isothiocyanatefluorescein isothiocyanate dextranMembrane ProteinsPhenolSoil PollutantsWater Pollutants

Identifiers

PMID19679145
PMCPMC2877281
OpenAlexW1993549899

What OpenQuestion holds

Textmetadata
LicenceTDM
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.