Evidence map›Paper›PMID 24809621›Full record

ArticlePLoS pathogens2014

SslE elicits functional antibodies that impair in vitro mucinase activity and in vivo colonization by both intestinal and extraintestinal Escherichia coli strains.

Barbara Nesta, Maria Valeri, Angela Spagnuolo, Roberto Rosini, Marirosa Mora, Paolo Donato, Christopher J Alteri, Mariangela Del Vecchio, Scilla Buccato, Alfredo Pezzicoli and 13 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
4.6field-weighted citation impact, top 5% 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, 66 citations in OpenAlex.

  1. Trial
  2. Mucin stimulates the growth ofMicrobiology (Reading, England) · 2026
    Article
  3. Review
  4. Mucinase fromFrontiers in microbiology · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
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  16. Article
  17. Review
  18. Confronting challenges to enterotoxigenicFrontiers in tropical diseases · 2021
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

23 authors at 6 institutions in 5 countries.

Barbara NestaNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Maria ValeriNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Angela SpagnuoloNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Roberto RosiniNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Marirosa MoraNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Paolo DonatoNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Christopher J AlteriDepartment of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America.
Mariangela Del VecchioNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Scilla BuccatoNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Alfredo PezzicoliNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Isabella BertoldiNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Lapo BuzzigoliNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Giovanna TuscanoNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Maria FaldutoNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Valentina RippaNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Yaqoub AshhabBiotechnology Research Center, Palestine Polytechnic University, Hebron, Palestine.
Giuliano BensiNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Maria Rita FontanaNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Kate L SeibInstitute for Glycomics, Griffith University, Gold Coast Campus, Queensland, Australia.
Harry L T MobleyDepartment of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America.
Mariagrazia PizzaNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Marco SorianiNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Laura SerinoNovartis Vaccines and Diagnostics Srl, Siena, Italy.
Novartis (Italy) · ITNovartis (Switzerland) · CHGriffith University · AUMichigan United · USPalestine Polytechnic University · PSUniversity of Michigan–Ann Arbor · US

Funding

MOLECULAR PATHOGENESIS OF E COLI UTIR01AI043363 · NIAID · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MOBLEY, HARRY L. · 1998 to 2012
$3.4M
NIAID NIH HHS R01 AI043363NIAID NIH HHS R01 AI43363
6 · The paper itself

Abstract

SslE, the Secreted and surface-associated lipoprotein from Escherichia coli, has recently been associated to the M60-like extracellular zinc-metalloprotease sub-family which is implicated in glycan recognition and processing. SslE can be divided into two main variants and we recently proposed it as a potential vaccine candidate. By applying a number of in vitro bioassays and comparing wild type, knockout mutant and complemented strains, we have now demonstrated that SslE specifically contributes to degradation of mucin substrates, typically present in the intestine and bladder. Mutation of the zinc metallopeptidase motif of SslE dramatically impaired E. coli mucinase activity, confirming the specificity of the phenotype observed. Moreover, antibodies raised against variant I SslE, cloned from strain IHE3034 (SslEIHE3034), are able to inhibit translocation of E. coli strains expressing different variants through a mucin-based matrix, suggesting that SslE induces cross-reactive functional antibodies that affect the metallopeptidase activity. To test this hypothesis, we used well-established animal models and demonstrated that immunization with SslEIHE3034 significantly reduced gut, kidney and spleen colonization by strains producing variant II SslE and belonging to different pathotypes. Taken together, these data strongly support the importance of SslE in E. coli colonization of mucosal surfaces and reinforce the use of this antigen as a component of a broadly protective vaccine against pathogenic E. coli species.

Indexed as

Antibody FormationEscherichia coli InfectionsAnimalsAnimals, Outbred StrainsAntibodies, BacterialCells, CulturedEnteropathogenic Escherichia coliEnzyme ActivationEscherichia coliEscherichia coli ProteinsFemaleIntestinesMiceMice, Inbred CBAPolysaccharide-LyasesVirulence FactorsAntibodies, BacterialEscherichia coli Proteinshyaluronate lyasePolysaccharide-LyasesSslE protein, E coliVirulence Factors

Identifiers

PMID24809621
PMCPMC4014459
OpenAlexW2039204405

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.