Evidence map›Paper›PMID 21300771›Full record

ArticleInfection and immunity2011

Involvement of quorum sensing and heat-stable enterotoxin a in cell damage caused by a porcine enterotoxigenic Escherichia coli strain.

Jing Zhu, Xianhua Yin, Hai Yu, Liping Zhao, Parviz Sabour, Joshua Gong

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

27 citing papers in PubMed, 39 citations in OpenAlex.

  1. Trial
  2. Indole decreases the virulence of enterotoxigenic Escherichia coli.World journal of microbiology & biotechnology · 2026
    Article
  3. Review
  4. Review
  5. Article
  6. A Novel ProbioticMicrobiology spectrum · 2022
    Article
  7. Article
  8. Article
  9. Antioxidants (Basel, Switzerland) · 2021
    Article
  10. Article
  11. Article
  12. Frontiers in cellular and infection microbiology · 2021
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. BioMed research international · 2020
    Article
  18. Article
  19. Essential oils as alternatives to antibiotics in swine production.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2018
    Review
  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 2 institutions in 2 countries.

Jing ZhuLaboratory of Molecular Microbial Ecology and Ecogenomics, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.
Xianhua Yin
Hai Yu
Liping Zhao
Parviz Sabour
Joshua Gong
Agriculture and Agri-Food Canada · CAShanghai Jiao Tong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Enterotoxigenic Escherichia coli (ETEC) strains with K88 fimbriae are often associated with the outbreaks of diarrhea in newborn and weaned piglets worldwide. In the present study, we observed that 10⁸ CFU/ml of K88(+) ETEC strain JG280 caused more death of pig intestinal IPEC-J2 cells than did 10⁹ CFU/ml, suggesting that ETEC-induced cell death was cell density dependent and that quorum sensing (QS) may play a role in pathogenesis. Subsequent investigations demonstrated a positive correlation between autoinducer 2 (AI-2) activity of JG280 and death of IPEC-J2 cells during the infection for up to 3 h. However, there was a negative correlation between AI-2 activity and expression of the JG280 enterotoxin genes estA and estB when IPEC-J2 cells were exposed to the pathogen at 10⁸ CFU/ml. We therefore cloned the luxS gene (responsible for AI-2 production) from JG280 and overexpressed it in E. coli DH5α, because deletion of the luxS gene was retarded by the lack of suitable antibiotic selection markers and the resistance of this pathogen to a wide range of antibiotics. The addition of culture fluid from E. coli DH5α with the overexpressed luxS reduced cell death of IPEC-J2 cells by 10⁸ CFU/ml JG280. The addition also reduced the estA expression by JG280. Nonpathogenic K88(+) strain JFF4, which lacks the enterotoxin genes, caused no death of IPEC-J2 cells, although it produced AI-2 activity comparable to that produced by JG280. These results suggest the involvement of AI-2-mediated quorum sensing in K88(+) ETEC pathogenesis, possibly through a negative regulation of STa production.

Indexed as

AnimalsBacterial ProteinsCarbon-Sulfur LyasesEnterotoxigenic Escherichia coliEnterotoxinsEscherichia coli InfectionsGene ExpressionGene Expression Regulation, BacterialHomoserineLactonesQuorum SensingReverse Transcriptase Polymerase Chain ReactionSwineVirulence FactorsBacterial ProteinsCarbon-Sulfur LyasesEnterotoxinsHomoserineLactonesLuxS protein, BacteriaN-octanoylhomoserine lactoneVirulence Factors

Identifiers

PMID21300771
PMCPMC3067552
OpenAlexW2110504024

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.