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RESEARCH PRODUCT
Diversity, virulence, and antimicrobial resistance of the KPC-producing Klebsiella pneumoniae ST307 clone
Judy Natalia JiménezDaniela FortiniAndrea EndimianiSylvain BrisseClaudia FeudiAna M. OcampoCaterina MamminaCelestino BonuraVirginie PassetMichel DoumithNeil WoodfordKatie L. HopkinsLaura VillaAlessandra Carattolisubject
0301 basic medicineSettore MED/07 - Microbiologia E Microbiologia Clinicasiderophoreantibiotic resistancelong term survivalsequence analysisKlebsiella pneumoniaepolymerase chain reactionResponses to Human InterventionsDrug ResistanceGene TransferClone (cell biology)ST259bacterial proteinvirulence factorYersiniabactinGenomechemistry.chemical_compoundMicrobialPlasmidAntibioticsbacterial genomepathogenicitygenetics610 Medicine & healthgenome analysisCross InfectionMolecular EpidemiologyGenomeVirulencebiologydrug effectyersiniabactinBacterialDrug Resistance MicrobialGeneral MedicineKlebsiella infectionglycogen synthesisKlebsiella pneumoniaeEnglandItalyST307horizontal gene transferProteínas BacterianasResearch ArticleGene Transfer HorizontalVirulence FactorsSequence analysiscapsule030106 microbiologyVirulence610 Medicine & healthpulsed field gel electrophoresisColombiaCarbapenemase; siderophore; yersiniabactin; bacterial protein; beta lactamase; virulence factor antibiotic resistance; Article; bacterial strain; bacterial virulence; bacterium isolate; fimbria; genome analysis; glycogen synthesis; Klebsiella pneumoniae; long term survival; microbial diversity; nonhuman; plasmid; polymerase chain reaction; pulsed field gel electrophoresis; sequence analysis; whole genome sequencing; antibiotic resistance; bacterial genome; carbapenem-resistant Enterobacteriaceae; Colombia; cross infection; drug effect; England; genetic variation; genetics; horizontal gene transfer; human; Italy; Klebsiella infection; microbiology; molecular epidemiology; multilocus sequence typing; pathogenicity; virulence Bacterial Proteins; beta-Lactamases; Carbapenem-Resistant Enterobacteriaceae; Colombia; Cross Infection; Drug Resistance Microbial; England; Gene Transfer Horizontal; Genetic Variation; Genome Bacterial; Humans; Italy; Klebsiella Infections; Klebsiella pneumoniae; Molecular Epidemiology; Multilocus Sequence Typing; Virulence; Virulence Factors; Whole Genome SequencingArticlebeta-Lactamasesbeta lactamaseHorizontalMicrobiologyCarbapenemase03 medical and health sciencesAntibiotic resistanceBacterial ProteinsplasmidHumanshumanInfecciones por KlebsiellafimbrianonhumanWhole Genome Sequencingbacterial virulencebacterium isolatemicrobiologyGenetic Variationbacterial strainbiology.organism_classificationKlebsiella InfectionsEnterobacteriaceae Resistentes a los CarbapenémicosKPCCarbapenem-Resistant Enterobacteriaceae030104 developmental biologychemistrymicrobial diversityEpidemiología MolecularGenome BacterialWGSMultilocus Sequence Typingdescription
ABSTRACT : The global spread of Klebsiella pneumoniae producing Klebsiella pneumoniae carbapenemase (KPC) has been mainly associated with the dissemination of high-risk clones. In the last decade, hospital outbreaks involving KPC-producing K. pneumoniae have been predominantly attributed to isolates belonging to clonal group (CG) 258. However, results of recent epidemiological analysis indicate that KPC-producing sequence type (ST) 307, is emerging in different parts of the world and is a candidate to become a prevalent high-risk clone in the near future. Here we show that the ST307 genome encodes genetic features that may provide an advantage in adaptation to the hospital environment and the human host. Sequence analysis revealed novel plasmid-located virulence factors, including a cluster for glycogen synthesis. Glycogen production is considered to be one of the possible adaptive responses to long-term survival and growth in environments outside the host. Chromosomally-encoded virulence traits in the clone comprised fimbriae, an integrative conjugative element carrying the yersiniabactin siderophore, and two different capsular loci. Compared with the ST258 clone, capsulated ST307 isolates showed higher resistance to complement-mediated killing. The acquired genetic features identified in the genome of this new emerging clone may contribute to increased persistence of ST307 in the hospital environment and shed light on its potential epidemiological success. COL0126131
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-01-01 |