The spread of extremely-drug resistant Klebsiella pneumoniae has become a major health threat worldwide. This is largely mediated by certain lineages, recognized as high-risk clones dispersed in all the world. The analysis of an outbreak of nine ST15, NDM-1 metallo-β-lactamase producing K. pneumoniae was performed. An IncC plasmid carrying the blaNDM-1 gene also carried the rare rmtC gene, encoding for a 16S rRNA methyltransferases (16RMTases), conferring resistance to all aminoglycosides. We studied the global spread of NDM variants and their association with the 16RMTases among K. pneumoniae complete genomes available in GenBank, producing a complete overview of the association of 16RMTases and NDM in K. pneumoniae genomics. NDM is more and more often associated with16RMTases and both are spreading in K. pneumoniae, conferring resistance to every beta-lactam and aminoglycoside. Our analysis suggest that aminoglycosides have limited future as second line treatment against NDM-producing K. pneumoniae.

An outbreak sustained by ST15 Klebsiella pneumoniae carrying 16S rRNA methyltransferases and blaNDM: evaluation of the global dissemination of these resistance determinants / Sacco, Federica; Raponi, Giammarco; Oliva, Alessandra; Bibbolino, Giulia; Mauro, Vera; Maria Di Lella, Federica; Volpicelli, Lorenzo; Antonelli, Guido; Venditti, Mario; Carattoli, Alessandra; Arcari, Gabriele. - In: INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS. - ISSN 0924-8579. - (2022). [10.1016/j.ijantimicag.2022.106615]

An outbreak sustained by ST15 Klebsiella pneumoniae carrying 16S rRNA methyltransferases and blaNDM: evaluation of the global dissemination of these resistance determinants

Federica Sacco
Primo
;
Giammarco Raponi
Secondo
;
Alessandra Oliva;Vera Mauro;Lorenzo Volpicelli;Guido Antonelli;Mario Venditti;Alessandra Carattoli
Penultimo
;
Gabriele Arcari
Ultimo
2022

Abstract

The spread of extremely-drug resistant Klebsiella pneumoniae has become a major health threat worldwide. This is largely mediated by certain lineages, recognized as high-risk clones dispersed in all the world. The analysis of an outbreak of nine ST15, NDM-1 metallo-β-lactamase producing K. pneumoniae was performed. An IncC plasmid carrying the blaNDM-1 gene also carried the rare rmtC gene, encoding for a 16S rRNA methyltransferases (16RMTases), conferring resistance to all aminoglycosides. We studied the global spread of NDM variants and their association with the 16RMTases among K. pneumoniae complete genomes available in GenBank, producing a complete overview of the association of 16RMTases and NDM in K. pneumoniae genomics. NDM is more and more often associated with16RMTases and both are spreading in K. pneumoniae, conferring resistance to every beta-lactam and aminoglycoside. Our analysis suggest that aminoglycosides have limited future as second line treatment against NDM-producing K. pneumoniae.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/1649510
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