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Title: Characterization of a leukocidin identified in Staphylococcus pseudintermedius

Journal Article · · PLoS ONE

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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1495979
Journal Information:
PLoS ONE, Vol. 13, Issue 9; ISSN 1932-6203
Publisher:
Public Library of ScienceCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 15 works
Citation information provided by
Web of Science

References (43)

Staphylococcus aureus Panton-Valentine Leukocidin Is a Very Potent Cytotoxic Factor for Human Neutrophils journal January 2010
Counter inhibition between leukotoxins attenuates Staphylococcus aureus virulence journal September 2015
Geneious Basic: An integrated and extendable desktop software platform for the organization and analysis of sequence data journal April 2012
3DLigandSite: predicting ligand-binding sites using similar structures journal May 2010
Antimicrobial resistance in methicillin susceptible and methicillin resistant Staphylococcus pseudintermedius of canine origin: Literature review from 1980 to 2013 journal July 2014
LukMF′ is the major secreted leukocidin of bovine Staphylococcus aureus and is produced in vivo during bovine mastitis journal November 2016
Inferring Reasons for the Failure of Staphylococcus aureus Vaccines in Clinical Trials journal January 2012
Methicillin-resistant Staphylococcus aureus and Staphylococcus pseudintermedius in veterinary medicine journal January 2010
Clonal Complexes and Antimicrobial Susceptibility Profiles of Staphylococcus pseudintermedius Isolates from Dogs in the United States journal January 2018
Structurally Designed Attenuated Subunit Vaccines for S. aureus LukS-PV and LukF-PV Confer Protection in a Mouse Bacteremia Model journal June 2013
Antibodies to S. aureus LukS-PV Attenuated Subunit Vaccine Neutralize a Broad Spectrum of Canonical and Non-Canonical Bicomponent Leukotoxin Pairs journal September 2015
Dramatic performance of Clostridium thermocellum explained by its wide range of cellulase modalities journal February 2016
Fractionation of a leucocidin from Staphylococcus aureus journal October 1959
Characterisation of a synergohymenotropic toxin produced by Staphylococcus intermedius journal December 1995
The Phyre2 web portal for protein modeling, prediction and analysis journal May 2015
SignalP 4.0: discriminating signal peptides from transmembrane regions journal September 2011
SA4Ag, a 4-antigen Staphylococcus aureus vaccine, rapidly induces high levels of bacteria-killing antibodies journal February 2017
Identification of LukPQ, a novel, equid-adapted leukocidin of Staphylococcus aureus journal January 2017
Staphylococcus aureus LukAB cytotoxin kills human neutrophils by targeting the CD11b subunit of the integrin Mac-1 journal June 2013
The potential use of toxin antibodies as a strategy for controlling acute Staphylococcus aureus infections journal April 2012
Purification of the two components of leucocidin from Staphylococcus aureus journal April 1960
Progress Toward a Staphylococcus aureus Vaccine journal December 2011
PHASTER: a better, faster version of the PHAST phage search tool journal May 2016
Clonal spread of methicillin-resistant Staphylococcus pseudintermedius in Europe and North America: an international multicentre study journal March 2010
Use of Label-Free Quantitative Proteomics To Distinguish the Secreted Cellulolytic Systems of Caldicellulosiruptor bescii and Caldicellulosiruptor obsidiansis journal April 2011
PSORTb 3.0: improved protein subcellular localization prediction with refined localization subcategories and predictive capabilities for all prokaryotes journal May 2010
PHAST: A Fast Phage Search Tool journal June 2011
Heterologous protein production in the yeast Kluyveromyces lactis journal May 2006
The effects of Staphylococcus aureus leukotoxins on the host: cell lysis and beyond journal February 2013
Heterologous expression of Mytilus californianus foot protein three (Mcfp-3) in Kluyveromyces lactis journal January 2008
Fine-scale population structure and evidence for local adaptation in Australian giant black tiger shrimp (Penaeus monodon) using SNP analysis journal September 2020
Identification of LukPQ, a novel, equid-adapted leukocidin of Staphylococcus aureus. text January 2017
Clonal spread of methicillin-resistant Staphylococcus pseudintermedius in Europe and North America: an international multicentre study text January 2010
Characterization of new staphylococcal cassette chromosome mec (SCCmec) and topoisomerase genes in fluoroquinolone- and methicillin-resistant Staphylococcus pseudintermedius text January 2008
Multilocus sequence typing for characterization of Staphylococcus pseudintermedius text January 2013
Identifying Proteomic LC‐MS/MS Data Sets with Bumbershoot and IDPicker journal March 2012
Acetamide Selection of Kluyveromyces lactis Cells Transformed with an Integrative Vector Leads to High-Frequency Formation of Multicopy Strains journal June 2007
Kluyveromyces lactis LAC4 Promoter Variants That Lack Function in Bacteria but Retain Full Function in K. lactis journal November 2005
Staphylococcus aureus Elaborates Leukocidin AB To Mediate Escape from within Human Neutrophils journal March 2013
Characterization of New Staphylococcal Cassette Chromosome mec (SCCmec) and Topoisomerase Genes in Fluoroquinolone- and Methicillin-Resistant Staphylococcus pseudintermedius journal February 2008
Multilocus Sequence Typing for Characterization of Staphylococcus pseudintermedius journal October 2012
Bovine Staphylococcus aureus Secretes the Leukocidin LukMF′ To Kill Migrating Neutrophils through CCR1 journal June 2015
Detección de Staphylococcus pseudintermedius resistentes a meticilina y a otros antimicrobianos de uso habitual en la clínica en piodermias caninas journal December 2017

Cited By (3)

Identification, cloning and characterization of SpEX exotoxin produced by Staphylococcus pseudintermedius journal July 2019
Underrated Staphylococcus species and their role in antimicrobial resistance spreading journal January 2020
Genome Sequences of Six Prophages Isolated from Staphylococcus pseudintermedius Strains Recovered from Human and Animal Clinical Specimens journal July 2019

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