Evidence map›Paper›PMID 23980106›Full record

ArticleInfection and immunity2013

Relative contributions of lipooligosaccharide inner and outer core modifications to nontypeable Haemophilus influenzae pathogenesis.

Pau Morey, Cristina Viadas, Begoña Euba, Derek W Hood, Montserrat Barberán, Carmen Gil, María Jesús Grilló, José Antonio Bengoechea, Junkal Garmendia

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
6.6field-weighted citation impact, top 3% 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

39 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
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  5. Polymyxins: recent advances and challenges.Frontiers in pharmacology · 2024
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  6. Microbiology spectrum · 2023
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  9. Review
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Phosphocholine-Modified Lipooligosaccharides ofMolecules (Basel, Switzerland) · 2018
    Article
  18. Article
  19. Article
  20. 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

9 authors at 5 institutions in 2 countries.

Pau MoreyLaboratory Microbial Pathogenesis, Fundación Investigación Sanitaria Illes Balears (FISIB), CSIC-Govern de les Illes Balears, Bunyola, Spain.
Cristina Viadas
Begoña Euba
Derek W Hood
Montserrat Barberán
Carmen Gil
María Jesús Grilló
José Antonio Bengoechea
Junkal Garmendia
Govern de les Illes Balears · ESAgrobiotechnology Institute · ESCentro de Investigación Biomédica en Red de Enfermedades Respiratorias · ESUniversidad de Zaragoza · ESUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nontypeable Haemophilus influenzae (NTHi) is a frequent commensal of the human nasopharynx that causes opportunistic infection in immunocompromised individuals. Existing evidence associates lipooligosaccharide (LOS) with disease, but the specific and relative contributions of NTHi LOS modifications to virulence properties of the bacterium have not been comprehensively addressed. Using NTHi strain 375, an isolate for which the detailed LOS structure has been determined, we compared systematically a set of isogenic mutant strains expressing sequentially truncated LOS. The relative contributions of 2-keto-3-deoxyoctulosonic acid, the triheptose inner core, oligosaccharide extensions on heptoses I and III, phosphorylcholine, digalactose, and sialic acid to NTHi resistance to antimicrobial peptides (AMP), self-aggregation, biofilm formation, cultured human respiratory epithelial infection, and murine pulmonary infection were assessed. We show that opsX, lgtF, lpsA, lic1, and lic2A contribute to bacterial resistance to AMP; lic1 is related to NTHi self-aggregation; lgtF, lic1, and siaB are involved in biofilm growth; opsX and lgtF participate in epithelial infection; and opsX, lgtF, and lpsA contribute to lung infection. Depending on the phenotype, the involvement of these LOS modifications occurs at different extents, independently or having an additive effect in combination. We discuss the relative contribution of LOS epitopes to NTHi virulence and frame a range of pathogenic traits in the context of infection.

Indexed as

AnimalsAntimicrobial Cationic PeptidesBiofilmsBronchopneumoniaCell AdhesionDisease Models, AnimalEndotoxinsEpithelial CellsFemaleHaemophilus InfectionsHaemophilus influenzaeHumansLipopolysaccharidesMetabolic Networks and PathwaysMiceMutationAntimicrobial Cationic PeptidesEndotoxinslipid-linked oligosaccharidesLipopolysaccharidesVirulence Factors

Identifiers

PMID23980106
PMCPMC3811809
OpenAlexW2133940410

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.