ArticleBioMed research international2014
Atypical enteropathogenic Escherichia coli secretes plasmid encoded toxin.
Article in BioMed research international, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 13 citations in OpenAlex.
- Plasmid-encoded toxin ofFrontiers in cellular and infection microbiology · 2024Article
- Enteropathogenic Escherichia coli (EPEC) expressing a non-functional bundle-forming pili (BFP) also leads to increased growth failure and intestinal inflammation in C57BL/6 mice.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2022Article
- ABToxins · 2022Review
- The aggregate-forming pili (AFP) mediates the aggregative adherence of a hybrid-pathogenicVirulence · 2021Article
- Quantitative analysis and virulence phenotypes of atypical enteropathogenicGut microbes · 2020Article
- High Prevalence of Virulence Genes in Specific Genotypes of Atypical EnteropathogenicFrontiers in cellular and infection microbiology · 2017Article
- Diarrheagenic Escherichia coli.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2016Review
- The serine protease Pic as a virulence factor of atypical enteropathogenic Escherichia coli.Gut microbes · 2016Article
- Flagellin and GroEL mediates in vitro binding of an atypical enteropathogenic Escherichia coli to cellular fibronectin.BMC microbiology · 2015Article
Corrections and comments
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plasmid encoded toxin (Pet) is a serine protease originally described in enteroaggregative Escherichia coli (EAEC) prototype strain 042 whose entire characterization was essentially obtained from studies performed with the purified toxin. Here we show that Pet is not exclusive to EAEC. Atypical enteropathogenic Escherichia coli (aEPEC) strains, isolated from diarrhea cases, express Pet and its detection in supernatants of infected HEp-2 cells coincides with the appearance of cell damage, which, in turn, were similar to those described with purified Pet. Pet secretion and the cytotoxic effects are time and culture medium dependent. In presence of DMEM supplemented with tryptone cell rounding and detachment were observed after just 5 h of incubation with the bacteria. In the absence of tryptone, the cytotoxic effects were detected only after 24 h of infection. We also show that, in addition to the prototype EAEC, other pet+ EAEC strains, also isolated from diarrhea cases, induce cellular damage in the same degree as the aEPEC. The cytotoxic effects of EAEC and aEPEC strains were significantly reduced in the presence of a serine protease inhibitor or anti-Pet IgG serum. Our results show a common aspect between the aEPEC and EAEC and provide the first evidence pointing to a role of Pet in aEPEC pathogenesis.
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Registered trials
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.