Evidence map›Paper›PMID 36856136›Full record

ArticleEMBO reports2023

Pseudomonas aeruginosa LecB suppresses immune responses by inhibiting transendothelial migration.

Janina Sponsel, Yubing Guo, Lutfir Hamzam, Alice C Lavanant, Annia Pérez-Riverón, Emma Partiot, Quentin Muller, Julien Rottura, Raphael Gaudin, Dirk Hauck and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in EMBO reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

7 citing papers in PubMed, 10 citations in OpenAlex.

  1. Molecular Mechanisms Underlying the Pathogenicity ofMedicina (Kaunas, Lithuania) · 2026
    Review
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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

14 authors at 3 institutions in 2 countries.

Janina Sponsel *CNRS UPR 3572, IBMC, University of Strasbourg, Strasbourg, France.
Yubing Guo *CNRS UPR 3572, IBMC, University of Strasbourg, Strasbourg, France.ORCID 0000-0003-0883-618X
Lutfir HamzamCNRS UPR 3572, IBMC, University of Strasbourg, Strasbourg, France.
Alice C LavanantCNRS UPR 3572, IBMC, University of Strasbourg, Strasbourg, France.ORCID 0000-0003-1788-903X
Annia Pérez-RiverónCNRS UPR 3572, IBMC, University of Strasbourg, Strasbourg, France.
Emma PartiotCNRS, Institut de Recherche en Infectiologie de Montpellier (IRIM), Montpellier, France.
Quentin MullerCNRS UPR 3572, IBMC, University of Strasbourg, Strasbourg, France.ORCID 0000-0002-5710-1182
Julien RotturaCNRS UPR 3572, IBMC, University of Strasbourg, Strasbourg, France.ORCID 0000-0002-6547-9935
Raphael GaudinCNRS, Institut de Recherche en Infectiologie de Montpellier (IRIM), Montpellier, France.ORCID 0000-0002-8558-8143
Dirk HauckChemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, Saarbrücken, Germany.
Alexander TitzChemical Biology of Carbohydrates (CBCH), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Centre for Infection Research, Saarbrücken, Germany.ORCID 0000-0001-7408-5084
Vincent FlacherCNRS UPR 3572, IBMC, University of Strasbourg, Strasbourg, France.ORCID 0000-0002-8648-2615
Winfried RömerSignalling Research Centers BIOSS and CIBSS, University of Freiburg, Freiburg, Germany.ORCID 0000-0002-2847-246X
Christopher G MuellerCNRS UPR 3572, IBMC, University of Strasbourg, Strasbourg, France.ORCID 0000-0002-4119-2729
Centre National de la Recherche Scientifique · FRGerman Center for Infection Research · DEUniversity of Freiburg · DE

Funding

Agence Nationale de la Recherche (ANR) ANR-20-CE15-0019-01Campus France (Agence Française pour la Promotion de l'Enseignement Supérieur, l'Accueil et la Mobilité Internationale) 42523VFDeutsche Forschungsgemeinschaft (DFG) EXC-294Deutscher Akademischer Austauschdienst France (DAAD France) 57445444Ministerium für Wissenschaft, Forschung und Kunst Baden-Württemberg (MWK) 33-7532.20
6 · The paper itself

Abstract

Pseudomonas aeruginosa is a Gram-negative bacterium causing morbidity and mortality in immuno-compromised humans. It produces a lectin, LecB, that is considered a major virulence factor, however, its impact on the immune system remains incompletely understood. Here we show that LecB binds to endothelial cells in human skin and mice and disrupts the transendothelial passage of leukocytes in vitro. It impairs the migration of dendritic cells into the paracortex of lymph nodes leading to a reduced antigen-specific T cell response. Under the effect of the lectin, endothelial cells undergo profound cellular changes resulting in endocytosis and degradation of the junctional protein VE-cadherin, formation of an actin rim, and arrested cell motility. This likely negatively impacts the capacity of endothelial cells to respond to extracellular stimuli and to generate the intercellular gaps for allowing leukocyte diapedesis. A LecB inhibitor can restore dendritic cell migration and T cell activation, underlining the importance of LecB antagonism to reactivate the immune response against P. aeruginosa infection.

Indexed as

Pseudomonas aeruginosaTransendothelial and Transepithelial MigrationAnimalsEndothelial CellsHumansImmunityLectinsMiceLectinsbacterial lectindendritic cellslymphaticsmigrationskin

Identifiers

PMID36856136
PMCPMC10074054
OpenAlexW4322720346

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.