Evidence map›Paper›PMID 31965549›Full record

ArticleBrazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]2020

Serine protease autotransporters of Enterobacteriaceae (SPATEs) are largely distributed among Escherichia coli isolated from the bloodstream.

Claudia A Freire, Ana Carolina M Santos, Antonio C Pignatari, Rosa M Silva, Waldir P Elias

Open access · greenAbstract read
In one paragraph

Article in Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology], 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.3field-weighted citation impact, top 22% 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

18 citing papers in PubMed, 25 citations in OpenAlex.

  1. Review
  2. The Role ofInternational journal of molecular sciences · 2025
    Review
  3. Article
  4. Article
  5. SPATEs promote the survival ofProceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. Genomic Dissection of an EnteroaggregativeInternational journal of molecular sciences · 2024
    Article
  7. Plasmid-encoded toxin ofFrontiers in cellular and infection microbiology · 2024
    Article
  8. Article
  9. Characterization of unconventional pathogenic Escherichia coli isolated from bloodstream infection: virulence beyond the opportunism.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2023
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Frequency and Diversity of HybridMicroorganisms · 2021
    Article
  16. Diversity of Hybrid- and Hetero-PathogenicFrontiers in cellular and infection microbiology · 2020
    Review
  17. Article
  18. Surface Protein Dispersin of EnteroaggregativeFrontiers in microbiology · 2020
    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

5 authors at 2 institutions in 1 country.

Claudia A FreireLaboratório de Bacteriologia, Instituto Butantan, Avenida Vital Brazil 1500, São Paulo, SP, 05503-900, Brazil.
Ana Carolina M SantosDisciplina de Microbiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
Antonio C PignatariLaboratório Especial de Microbiologia Clínica, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
Rosa M SilvaDisciplina de Microbiologia, Departamento de Microbiologia, Imunologia e Parasitologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
Waldir P EliasLaboratório de Bacteriologia, Instituto Butantan, Avenida Vital Brazil 1500, São Paulo, SP, 05503-900, Brazil. waldir.elias@butantan.gov.br.ORCID http://orcid.org/0000-0003-3470-5706
Universidade Federal de São Paulo · BRInstituto Butantan · BR

Funding

Fundação de Amparo à Pesquisa do Estado de São Paulo 2011/14103-0
6 · The paper itself

Abstract

Extraintestinal pathogenic Escherichia coli (ExPEC) is the major cause of Gram-negative-related sepsis. Bacterial survival in the bloodstream is mediated by a variety of virulence traits, including those mediating immune system evasion. Serine protease autotransporters of Enterobacteriaceae (SPATE) constitute a superfamily of virulence factors that can cause tissue damage and cleavage of molecules of the complement system, which is a key feature for the establishment of infection in the bloodstream. In this study, we analyzed 278 E. coli strains isolated from human bacteremia from inpatients of both genders, different ages, and clinical conditions. These strains were screened for the presence of SPATE-encoding genes as well as for phylogenetic classification and intrinsic virulence of ExPEC. SPATE-encoding genes were detected in 61.2% of the strains and most of these strains (44.6%) presented distinct SPATE-encoding gene profiles. sat was the most frequent gene among the entire collection, found in 34.2%, followed by vat (28.4%), pic (8.3%), and tsh (4.7%). Although in low frequencies, espC (0.7%), eatA (1.1%), and espI (1.1%) were detected and are being reported for the first time in extraintestinal isolates. The presence of SPATE-encoding genes was positively associated to phylogroup B2 and intrinsic virulent strains. These findings suggest that SPATEs are highly prevalent and involved in diverse steps of the pathogenesis of bacteremia caused by E. coli.

Indexed as

BacteremiaEscherichia coli InfectionsEscherichia coli ProteinsExtraintestinal Pathogenic Escherichia coliHumansPhylogenySerine ProteasesType V Secretion SystemsVirulence FactorsEscherichia coli ProteinsSerine ProteasesType V Secretion SystemsVirulence FactorsBacteremiaEscherichia coliSPATEVirulence factors

Identifiers

PMID31965549
PMCPMC7203317
OpenAlexW3001845850

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.