Widespread Detection of Yersiniabactin Gene Cluster and Its Encoding Integrative Conjugative Elements (ICEKp) among Nonoutbreak OXA-48-Producing Klebsiella pneumoniae Clinical Isolates from Spain and the Netherlands

ABSTRACT In this study, we determined the presence of virulence factors in nonoutbreak, high-risk clones and other isolates belonging to less common sequence types associated with the spread of OXA-48-producing Klebsiella pneumoniae clinical isolates from The Netherlands (n = 61) and Spain (n = 53). Most isolates shared a chromosomally encoded core of virulence factors, including the enterobactin gene cluster, fimbrial fim and mrk gene clusters, and urea metabolism genes (ureAD). We observed a high diversity of K-Locus and K/O loci combinations, KL17 and KL24 (both 16%), and the O1/O2v1 locus... Mehr ...

Verfasser: Afif P. Jati
Pedro J. Sola-Campoy
Thijs Bosch
Leo M. Schouls
Antoni P. A. Hendrickx
Verónica Bautista
Noelia Lara
Erwin Raangs
Belén Aracil
John W. A. Rossen
Alex W. Friedrich
Ana M. Navarro Riaza
Javier E. Cañada-García
Eva Ramírez de Arellano
Jesús Oteo-Iglesias
María Pérez-Vázquez
Silvia García-Cobos
Ana María Fernández Sánchez
Ma Angeles Pulido
Mayuli Armas
Dokumenttyp: Artikel
Erscheinungsdatum: 2023
Reihe/Periodikum: Microbiology Spectrum, Vol 11, Iss 4 (2023)
Verlag/Hrsg.: American Society for Microbiology
Schlagwörter: Klebsiella pneumoniae / hypervirulence / virulence / carbapenem resistance / blaOXA-48 / OXA-48 / Microbiology / QR1-502
Sprache: Englisch
Permalink: https://search.fid-benelux.de/Record/base-27582140
Datenquelle: BASE; Originalkatalog
Powered By: BASE
Link(s) : https://doi.org/10.1128/spectrum.04716-22

ABSTRACT In this study, we determined the presence of virulence factors in nonoutbreak, high-risk clones and other isolates belonging to less common sequence types associated with the spread of OXA-48-producing Klebsiella pneumoniae clinical isolates from The Netherlands (n = 61) and Spain (n = 53). Most isolates shared a chromosomally encoded core of virulence factors, including the enterobactin gene cluster, fimbrial fim and mrk gene clusters, and urea metabolism genes (ureAD). We observed a high diversity of K-Locus and K/O loci combinations, KL17 and KL24 (both 16%), and the O1/O2v1 locus (51%) being the most prevalent in our study. The most prevalent accessory virulence factor was the yersiniabactin gene cluster (66.7%). We found seven yersiniabactin lineages—ybt 9, ybt 10, ybt 13, ybt 14, ybt 16, ybt 17, and ybt 27—which were chromosomally embedded in seven integrative conjugative elements (ICEKp): ICEKp3, ICEKp4, ICEKp2, ICEKp5, ICEKp12, ICEKp10, and ICEKp22, respectively. Multidrug-resistant lineages—ST11, ST101, and ST405—were associated with ybt 10/ICEKp4, ybt 9/ICEKp3, and ybt 27/ICEKp22, respectively. The fimbrial adhesin kpi operon (kpiABCDEFG) was predominant among ST14, ST15, and ST405 isolates, as well as the ferric uptake system kfuABC, which was also predominant among ST101 isolates. No convergence of hypervirulence and resistance was observed in this collection of OXA-48-producing K. pneumoniae clinical isolates. Nevertheless, two isolates, ST133 and ST792, were positive for the genotoxin colibactin gene cluster (ICEKp10). In this study, the integrative conjugative element, ICEKp, was the major vehicle for yersiniabactin and colibactin gene clusters spreading. IMPORTANCE Convergence of multidrug resistance and hypervirulence in Klebsiella pneumoniae isolates has been reported mostly related to sporadic cases or small outbreaks. Nevertheless, little is known about the real prevalence of carbapenem-resistant hypervirulent K. pneumoniae since these two phenomena are often separately studied. In ...