Evidence map›Paper›PMID 16368973›Full record

ArticleInfection and immunity2006

Enterocyte cytoskeleton changes are crucial for enhanced translocation of nonpathogenic Escherichia coli across metabolically stressed gut epithelia.

Aisha Nazli, Arthur Wang, Oren Steen, David Prescott, Jun Lu, Mary H Perdue, Johan D Söderholm, Philip M Sherman, Derek M McKay

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

16 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Biogenic selenium nanoparticles synthesized byInternational journal of nanomedicine · 2019
    Article
  6. Article
  7. Reduced intestinal epithelial mitochondrial function enhances in vitro interleukin-8 production in response to commensal Escherichia coli.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2018
    Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Occludin regulates macromolecule flux across the intestinal epithelial tight junction barrier.American journal of physiology. Gastrointestinal and liver physiology · 2011
    Article
  14. In vivo actin cross-linking induced by Vibrio cholerae type VI secretion system is associated with intestinal inflammation.Proceedings of the National Academy of Sciences of the United States of America · 2010
    Article
  15. Article
  16. 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

9 authors at 3 institutions in 2 countries.

Aisha NazliIntestinal Disease Research Programme, HSC-3N5C, McMaster University, 1200 Main Street West, Hamilton, Ontario L8N 3Z5, Canada.
Arthur Wang
Oren Steen
David Prescott
Jun Lu
Mary H Perdue
Johan D Söderholm
Philip M Sherman
Derek M McKay
McMaster University · CALinköping University Hospital · SESickKids Foundation · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Substantial data implicate the commensal flora as triggers for the initiation of enteric inflammation or inflammatory disease relapse. We have shown that enteric epithelia under metabolic stress respond to nonpathogenic bacteria by increases in epithelial paracellular permeability and bacterial translocation. Here we assessed the structural basis of these findings. Confluent filter-grown monolayers of the human colonic T84 epithelial cell line were treated with 0.1 mM dinitrophenol (which uncouples oxidative phosphorylation) and noninvasive, nonpathogenic Escherichia coli (strain HB101, 10(6) CFU) with or without pretreatment with various pharmacological agents. At 24 h later, apoptosis, tight-junction protein expression, transepithelial resistance (TER; a marker of paracellular permeability), and bacterial internalization and translocation were assessed. Treatment with stabilizers of microtubules (i.e., colchicine), microfilaments (i.e., jasplakinolide) and clathrin-coated pit endocytosis (i.e., phenylarsine oxide) all failed to block DNP+E. coli HB101-induced reductions in TER but effectively prevented bacterial internalization and translocation. Neither the TER defect nor the enhanced bacterial translocations were a consequence of increased apoptosis. These data show that epithelial paracellular and transcellular (i.e., bacterial internalization) permeation pathways are controlled by different mechanisms. Thus, epithelia under metabolic stress increase their endocytotic activity that can result in a microtubule-, microfilament-dependent internalization and transcytosis of bacteria. We speculate that similar events in vivo would allow excess unprocessed antigen and bacteria into the mucosa and could evoke an inflammatory response by, for example, the activation of resident or recruited immune cells.

Indexed as

Bacterial TranslocationCell Line, TumorChloramphenicolCytoskeletonDinitrophenolsEndocytosisEnterocytesEscherichia coliHumansIntestinal MucosaProtein Synthesis InhibitorsStress, PhysiologicalChloramphenicolDinitrophenolsProtein Synthesis Inhibitors

Identifiers

PMID16368973
PMCPMC1346602
OpenAlexW2163844022

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.