Evidence map›Paper›PMID 32973324›Full record

ArticleMucosal immunology2021

Secretory IgA N-glycans contribute to the protection against E. coli O55 infection of germ-free piglets.

Leona Raskova Kafkova, Diana Brokesova, Michal Krupka, Zuzana Stehlikova, Jiri Dvorak, Stepan Coufal, Alena Fajstova, Dagmar Srutkova, Katerina Stepanova, Petra Hermanova and 10 more

Open access · hybridAbstract read
In one paragraph

Article in Mucosal immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.1field-weighted citation impact, top 15% 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

19 citing papers in PubMed, 29 citations in OpenAlex.

  1. Review
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  9. Deciphering the gastrointestinal carriage ofInfection and immunity · 2024
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  14. Review
  15. Mucosal Immunity and the Gut-Microbiota-Brain-Axis in Neuroimmune Disease.International journal of molecular sciences · 2022
    Review
  16. Gut microbiome and breast-feeding: Implications for early immune development.The Journal of allergy and clinical immunology · 2022
    Review
  17. Antibody-dependent passive protection of mucosal surfaces.Human vaccines & immunotherapeutics · 2022
    Article
  18. Review
  19. 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

20 authors at 4 institutions in 3 countries.

Leona Raskova Kafkova *Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic.
Diana Brokesova *Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic.
Michal KrupkaDepartment of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic.
Zuzana StehlikovaLaboratory of Cellular and Molecular Immunology, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic.
Jiri DvorakLaboratory of Cellular and Molecular Immunology, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic.
Stepan CoufalLaboratory of Cellular and Molecular Immunology, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic.
Alena FajstovaLaboratory of Cellular and Molecular Immunology, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic.
Dagmar SrutkovaLaboratory of Gnotobiology, Institute of Microbiology of the Czech Academy of Sciences, Novy Hradek, Czech Republic.
Katerina StepanovaLaboratory of Gnotobiology, Institute of Microbiology of the Czech Academy of Sciences, Novy Hradek, Czech Republic.
Petra HermanovaLaboratory of Gnotobiology, Institute of Microbiology of the Czech Academy of Sciences, Novy Hradek, Czech Republic.
Renata StepankovaLaboratory of Gnotobiology, Institute of Microbiology of the Czech Academy of Sciences, Novy Hradek, Czech Republic.
Ivo UberallDepartment of Clinical and Molecular Pathology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic.
Jozef SkardaDepartment of Clinical and Molecular Pathology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic.
Zdenek NovakDepartment of Surgery, University of Alabama at Birmingham, Birmingham, AL, USA.
Luca VannucciLaboratory of Cellular and Molecular Immunology, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic.
Helena Tlaskalova-HogenovaLaboratory of Cellular and Molecular Immunology, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic.
Zuzana Jiraskova ZakostelskaLaboratory of Cellular and Molecular Immunology, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic.
Marek SinkoraLaboratory of Gnotobiology, Institute of Microbiology of the Czech Academy of Sciences, Novy Hradek, Czech Republic.
Jiri MesteckyLaboratory of Cellular and Molecular Immunology, Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic. mestecky@uab.edu.
Milan RaskaDepartment of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic. milan.raska@upol.cz.ORCID http://orcid.org/0000-0002-8572-7246
Czech Academy of Sciences · CZPalacký University Olomouc · CZCzech Academy of Sciences, Institute of Microbiology · CZUniversity of Alabama at Birmingham · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mucosal surfaces are colonized by highly diverse commensal microbiota. Coating with secretory IgA (SIgA) promotes the survival of commensal bacteria while it inhibits the invasion by pathogens. Bacterial coating could be mediated by antigen-specific SIgA recognition, polyreactivity, and/or by the SIgA-associated glycans. In contrast to many in vitro studies, only a few reported the effect of SIgA glycans in vivo. Here, we used a germ-free antibody-free newborn piglets model to compare the protective effect of SIgA, SIgA with enzymatically removed N-glycans, Fab, and Fc containing the secretory component (Fc-SC) during oral necrotoxigenic E. coli O55 challenge. SIgA, Fab, and Fc-SC were protective, whereas removal of N-glycans from SIgA reduced SIgA-mediated protection as demonstrated by piglets' intestinal histology, clinical status, and survival. In vitro analyses indicated that deglycosylation of SIgA did not reduce agglutination of E. coli O55. These findings highlight the role of SIgA-associated N-glycans in protection. Further structural studies of SIgA-associated glycans would lead to the identification of those involved in the species-specific inhibition of attachment to corresponding epithelial cells.

Indexed as

AgglutinationAnimalsAnimals, NewbornDisease ResistanceEscherichia coliEscherichia coli InfectionsFemaleGerm-Free LifeGlycosylationImmunoglobulin A, SecretoryImmunoglobulin Fab FragmentsPolysaccharidesPregnancySingle-Chain AntibodiesSwineImmunoglobulin A, SecretoryImmunoglobulin Fab FragmentsPolysaccharidesSingle-Chain Antibodies

Identifiers

PMID32973324
PMCPMC7946640
OpenAlexW3088060178

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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.