Evidence map›Paper›PMID 15385484›Full record

ArticleInfection and immunity2004

Bacteroides fragilis enterotoxin induces intestinal epithelial cell secretion of interleukin-8 through mitogen-activated protein kinases and a tyrosine kinase-regulated nuclear factor-kappaB pathway.

Shaoguang Wu, Jan Powell, Nes Mathioudakis, Sheryl Kane, Ellen Fernandez, Cynthia L Sears

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 137 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
137citing papers in PubMed, 2 pooled it
1.2field-weighted citation impact, top 23% 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

137 citing papers in PubMed, 2 syntheses or guidelines pooled it, 192 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Review
  5. International journal of molecular sciences · 2026
    Article
  6. Orally available designed miniproteins inhibit enterotoxigenicbioRxiv : the preprint server for biology · 2026
    Article
  7. Article
  8. The Role of Selected Bacteria in Breast Cancer Initiation and Development.International journal of molecular sciences · 2026
    Review
  9. Article
  10. Foods (Basel, Switzerland) · 2026
    Article
  11. Review
  12. Review
  13. Review
  14. Review
  15. Review
  16. Article
  17. Microorganisms · 2025
    Article
  18. Review
  19. Review
  20. Article

77 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Shaoguang WuDivision of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.
Jan Powell
Nes Mathioudakis
Sheryl Kane
Ellen Fernandez
Cynthia L Sears
Office of Infectious Diseases · USUniversity of Maryland, Baltimore · US

Funding

PHYSIOLOGY AND CLONING OF B FRAGILIS ENTEROTOXINR01DK045496 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI SEARS, CYNTHIA · 1993 to 2010
$3.6M
NIDDK NIH HHS R01 DK045496NIDDK NIH HHS R01 DK45496
6 · The paper itself

Abstract

Enterotoxigenic Bacteroides fragilis (ETBF) secretes a 20-kDa metalloprotease toxin termed B. fragilis toxin (BFT). ETBF disease in animals is associated with an acute inflammatory response in the intestinal mucosa, and lethal hemorrhagic colitis may occur in rabbits. In this study, we confirmed recent reports (J. M. Kim, Y. K. Oh, Y. J. Kim, H. B. Oh, and Y. J. Cho, Clin. Exp. Immunol. 123:421-427, 2001; L. Sanfilippo, C. K. Li, R. Seth, T. J. Balwin, M. J. Menozzi, and Y. R. Mahida, Clin. Exp. Immunol. 119:456-463, 2000) that purified BFT stimulates interleukin-8 (IL-8) secretion by human intestinal epithelial cells (HT29/C1 cells) and demonstrate that stimulation of IL-8 production is dependent on biologically active BFT and independent of serum. Induction of IL-8 mRNA expression occurs rapidly and ceases by 6 h after BFT treatment, whereas IL-8 secretion continues to increase for at least 18 h. Our data suggest that BFT-stimulated IL-8 secretion involves tyrosine kinase-dependent activation of nuclear factor-kappaB (NF-kappaB) as well as activation of the mitogen-activated protein kinases (MAPKs), p38 and extracellular signal-related kinase. Simultaneous activation of NF-kappaB and MAPKs appears necessary for secretion of IL-8 by HT29/C1 cells treated with BFT.

Indexed as

Bacteroides fragilisCell Line, TumorEnzyme ActivationEpithelial CellsGenisteinHumansInterleukin-8Intestinal MucosaMetalloendopeptidasesMitogen-Activated Protein KinasesNF-kappa Bp38 Mitogen-Activated Protein KinasesProtein-Tyrosine KinasesSerumSignal TransductionTime FactorsfragilysinGenisteinInterleukin-8MetalloendopeptidasesMitogen-Activated Protein KinasesNF-kappa Bp38 Mitogen-Activated Protein KinasesProtein-Tyrosine Kinases

Identifiers

PMID15385484
PMCPMC517603
OpenAlexW2062893709

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.