Evidence map›Paper›PMID 22403793›Full record

ArticleAmerican journal of physiology. Gastrointestinal and liver physiology2012

Enteropathogenic Escherichia coli inhibits ileal sodium-dependent bile acid transporter ASBT.

Fadi Annaba, Zaheer Sarwar, Ravinder K Gill, Amit Ghosh, Seema Saksena, Alip Borthakur, Gail A Hecht, Pradeep K Dudeja, Waddah A Alrefai

Abstract read
In one paragraph

Article in American journal of physiology. Gastrointestinal and liver physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

24 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
  2. Article
  3. Effects of Bile on PathogenicBiomolecules · 2025
    Article
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  7. Article
  8. Review
  9. Article
  10. Article
  11. The Journal of biological chemistry · 2020
    Article
  12. Review
  13. Article
  14. Post-translational modifications of transporters.Pharmacology & therapeutics · 2018
    Review
  15. A novel bioluminescence-based method to investigate uptake of bile acids in living cells.American journal of physiology. Gastrointestinal and liver physiology · 2018
    Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Bile acid dysregulation, gut dysbiosis, and gastrointestinal cancer.Experimental biology and medicine (Maywood, N.J.) · 2014
    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 2 institutions in 1 country.

Fadi AnnabaSection of Digestive Diseases and Nutrition, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA.
Zaheer Sarwar
Ravinder K Gill
Amit Ghosh
Seema Saksena
Alip Borthakur
Gail A Hecht
Pradeep K Dudeja
Waddah A Alrefai
University of Illinois Chicago · USJesse Brown VA Medical Center · US

Funding

Intestinal Anion Transporters: Function and RegulationR01DK054016 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI DUDEJA, PRADEEP K · 1998 to 2022
$7.0M
Transcriptional Regulation of NHE-3 Isoform in Human IntestineP01DK067887 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI HECHT, GAIL A · 2006 to 2011
$4.9M
Enteropathogenic E. coli Effects on Intestinal FunctionR01DK050694 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI HECHT, GAIL A · 1997 to 2010
$3.2M
Transporter Trafficking Mechanisms in Infectious DiarrheaR01DK092441 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI DUDEJA, PRADEEP K · 2011 to 2020
$3.0M
ENTEROHEMORRHAGIC E COLI ALTER INTESTINAL FUNCTIONR01DK058964 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI HECHT, GAIL A · 2000 to 2011
$2.8M
Probiotics:Potential Therapeutic Roles in DiarrheaR01DK081858 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI DUDEJA, PRADEEP K · 2008 to 2017
$2.5M
Regulation of Intestinal Bile Acid TransportR01DK071596 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI ALREFAI, WADDAH A. · 2005 to 2014
$2.3M
Anion Transport in EPEC Induced DiarrheaK01DK074458 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI GILL, RAVINDER K · 2007 to 2011
$680k
Enteropathogenic E. Coli Effects on Intestinal FunctionR56DK050694 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI HECHT, GAIL A · 2012 to 2012
$335k
Regulation of Intestinal Bile Acid TransportR56DK071596 · NIDDK · UNIVERSITY OF ILLINOIS AT CHICAGO · PI ALREFAI, WADDAH A. · 2010 to 2010
$196k
BLRD VA I01 BX000152BLRD VA IK6 BX005243NIDDK NIH HHS DK-050694NIDDK NIH HHS DK-058964NIDDK NIH HHS DK-54016NIDDK NIH HHS DK-71596NIDDK NIH HHS DK-74458NIDDK NIH HHS DK-81858NIDDK NIH HHS P01 DK067887NIDDK NIH HHS P01-DK-067887NIDDK NIH HHS R01 DK071596NIDDK NIH HHS R01 DK092441
6 · The paper itself

Abstract

Apical sodium-dependent bile acid transporter (ASBT) is responsible for the absorption of bile acids from the intestine. A decrease in ASBT function and expression has been implicated in diarrhea associated with intestinal inflammation. Whether infection with pathogenic microorganisms such as the enteropathogenic Escherichia coli (EPEC) affect ASBT activity is not known. EPEC is a food-borne enteric pathogen that translocates bacterial effector molecules via type three secretion system (TTSS) into host cells and is a major cause of infantile diarrhea. We investigated the effects of EPEC infection on ileal ASBT function utilizing human intestinal Caco2 cells and HEK-293 cells stably transfected with ASBT-V5 fusion protein (2BT cells). ASBT activity was significantly inhibited following 60 min infection with EPEC but not with nonpathogenic E. coli. Mutations in bacterial escN, espA, espB, and espD, the genes encoding for the elements of bacterial TTSS, ablated EPEC inhibitory effect on ASBT function. Furthermore, mutation in the bacterial BFP gene encoding for bundle-forming pili abrogated the inhibition of ASBT by EPEC, indicating the essential role for bacterial aggregation and the early attachment. The inhibition by EPEC was associated with a significant decrease in the V(max) of the transporter and a reduction in the level of ASBT on the plasma membrane. The inhibition of ASBT by EPEC was blocked in the presence of protein tyrosine phosphatase inhibitors. Our studies provide novel evidence for the alterations in the activity of ASBT by EPEC infection and suggest a possible effect for EPEC in influencing intestinal bile acid homeostasis.

Indexed as

Bacterial Outer Membrane ProteinsBacterial Secretion SystemsCaco-2 CellsEnteropathogenic Escherichia coliEnzyme InhibitorsEscherichia coli InfectionsEscherichia coli ProteinsHEK293 CellsHumansMutationOrganic Anion Transporters, Sodium-DependentProtein Tyrosine PhosphatasesSodiumSymportersBacterial Outer Membrane ProteinsBacterial Secretion SystemsEaeB protein, E coliEnzyme InhibitorsEscherichia coli ProteinsEspA protein, E coliEspD protein, E coliOrganic Anion Transporters, Sodium-DependentProtein Tyrosine PhosphatasesSodiumsodium-bile acid cotransporterSymporters

Identifiers

PMID22403793
PMCPMC3362099
OpenAlexW2153825263

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.