Evidence map›Paper›PMID 30261001›Full record

ArticlePloS one2018

Characterization of a leukocidin identified in Staphylococcus pseudintermedius.

Mohamed A Abouelkhair, David A Bemis, Richard J Giannone, Linda A Frank, Stephen A Kania

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.9field-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

22 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
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  5. The dynamic interplay betweenFrontiers in cellular and infection microbiology · 2026
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  6. Methicillin Resistance Elements in the Canine PathogenAntibiotics (Basel, Switzerland) · 2024
    Article
  7. Article
  8. Virulence Mechanisms of Staphylococcal Animal Pathogens.International journal of molecular sciences · 2023
    Review
  9. Article
  10. Article
  11. Antimicrobial activity of α-mangostin againstFrontiers in cellular and infection microbiology · 2023
    Article
  12. Article
  13. Virulence Potential of Biofilm-ProducingAntibiotics (Basel, Switzerland) · 2022
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  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

5 authors at 3 institutions in 2 countries.

Mohamed A AbouelkhairDepartment of Biomedical and Diagnostic Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, Tennessee, United States of America.ORCID 0000-0003-0109-6000
David A BemisDepartment of Biomedical and Diagnostic Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, Tennessee, United States of America.
Richard J GiannoneChemical Sciences Division, Biological Mass Spectrometry, Oak Ridge National Laboratory, Oak Ridge, Tennessee, United States of America.
Linda A FrankDepartment of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN, United States of America.
Stephen A KaniaDepartment of Biomedical and Diagnostic Sciences, University of Tennessee College of Veterinary Medicine, Knoxville, Tennessee, United States of America.ORCID 0000-0002-4490-7347
Knoxville College · USOak Ridge National Laboratory · USUniversity of Tennessee at Knoxville · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bacterial infections from Staphylococcus pseudintermedius are the most common cause of skin infections (pyoderma) affecting dogs. Two component pore-forming leukocidins are a family of potent toxins secreted by staphylococci and consist of S (slow) and F (fast) components. They impair the innate immune system, the first line of defense against these pathogens. Seven different leukocidins have been characterized in Staphylococcus aureus, some of which are host and cell specific. Through genome sequencing and analysis of the S. pseudintermedius secretome using liquid chromatography mass spectrometry we identified two proteins, named "LukS-I" and "LukF-I", encoded on a degenerate prophage contained in the genome of S. pseudintermedius isolates. Phylogenetic analysis of LukS-I components in comparison to the rest of the leukocidin family showed that LukS-I was most closely related to S. intermedius LukS-I, S. aureus LukE and LukP, whereas LukF-I was most similar to S. intermedius LukF-I S. aureus gamma hemolysin subunit B. The killing effect of recombinant S. pseudintermedius LukS-I and LukF-I on canine polymorphonuclear leukocytes was determined using a flow cytometry cell permeability assay. The cytotoxic effect occurred only when the two recombinant proteins were combined. Engineered mutant versions of the two-component pore-forming leukocidins, produced through amino acids substitutions at selected points, were not cytotoxic. Anti-Luk-I produced in dogs against attenuated proteins reduced the cytotoxic effect of native canine leukotoxin which highlights the importance of Luk-I as a promising component in a vaccine against canine S. pseudintermedius infections.

Indexed as

LeukocidinsAmino Acid SequenceAnimalsAntibodies, BacterialBacterial ProteinsCell DeathDog DiseasesDogsEscherichia coliExotoxinsGenome, BacterialLeukocytesMutationPhylogenyRecombinant ProteinsStaphylococcal InfectionsAntibodies, BacterialBacterial ProteinsExotoxinsLeukocidinsleukotoxinRecombinant Proteins

Identifiers

PMID30261001
PMCPMC6160070
OpenAlexW2894409731

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.