Evidence map›Paper›PMID 35468857›Full record

ArticleGut pathogens2022

Enterotoxigenic Bacteroides fragilis activates IL-8 expression through Stat3 in colorectal cancer cells.

Rachel V Purcell, Jessica Permain, Jacqueline I Keenan

Open access · goldAbstract read
In one paragraph

Article in Gut pathogens, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
9.0field-weighted citation impact, top 1% 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

43 citing papers in PubMed, 62 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Orally available designed miniproteins inhibit enterotoxigenicbioRxiv : the preprint server for biology · 2026
    Article
  6. Article
  7. The Role of Selected Bacteria in Breast Cancer Initiation and Development.International journal of molecular sciences · 2026
    Review
  8. Review
  9. Review
  10. Review
  11. Dual immunomodulatory effects ofFrontiers in microbiology · 2026
    Article
  12. Review
  13. Annals of medicine and surgery (2012) · 2026
    Article
  14. Review
  15. Review
  16. Review
  17. Review
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  20. 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

3 authors at 1 institution in 1 country.

Rachel V PurcellDepartment of Surgery, University of Otago, Christchurch, New Zealand. rachel.purcell@otago.ac.nz.
Jessica PermainDepartment of Surgery, University of Otago, Christchurch, New Zealand.
Jacqueline I KeenanDepartment of Surgery, University of Otago, Christchurch, New Zealand.
University of Otago · NZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEnterotoxigenic Bacteroides fragilis (ETBF) has been implicated in colorectal carcinogenesis through the actions of its toxin, B. fragilis toxin (BFT). Studies on colorectal cell lines have shown that treatment with BFT causes disruption of E-cadherin leading to increased expression of the pro-inflammatory cytokine, IL-8. Stat3 activation has also been associated with ETBF-related colitis and tumour development. However, a link between E-cadherin, IL-8 and Stat3 has not been investigated in the context of ETBF infection.

resultsWe found that co-culture of HT-29 and HCT116 colorectal cell lines with ETBF, had a similar effect on activation of IL8 gene and protein expression as treatment with purified BFT. Inhibition of Stat3 resulted in a decrease in IL-8 gene and protein expression in response to ETBF in both cell lines. A reduction in E-cadherin expression in response to ETBF treatment was not restored by blocking Stat3.

conclusionWe found that treatment of colorectal cancer cell lines with live cultures of ETBF had the equivalent effect on IL-8 expression as the use of purified toxin, and this may be a more representative model of ETBF-mediated colorectal carcinogenesis. IL-8 gene and protein expression was mediated through Stat3 in HT-29 and HCT116 cells, whereas disruption of E-cadherin appeared to be independent of Stat3 signalling.

Indexed as

Colorectal cancerE-cadherinEnterotoxigenic Bacteroides fragilisHCT116HT29IL-8InflammationInterleukin-8Stat3Toxinβ-catenin

Identifiers

PMID35468857
PMCPMC9036718
OpenAlexW4224939613

What OpenQuestion holds

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LicenceCC BY
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.