Plasmidome analyses of Klebsiella pneumoniae co-producing blaKPC-2 and blaNDM-1 in Southern Brazil: characterisation of mobile genetic elements

ABSTRACT: Objective: Infections due to carbapenemase-producing Enterobacterales harbouring more than one carbapenemase-encoding gene spread mainly by plasmid and transposon mobilisation. The objective of this study was to analyse the mobile genetic elements carrying blaKPC and blaNDM of Klebsiella...

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Main Authors: Mayana Kieling Hernandez Berdichevski, Rafaela R. Guerra, Dariane C. Pereira, Camila M. Wilhelm, Patricia O. Barth, Melise C. Silveira, Fabiana C.Z. Volpato, Claudio Rocha-de-Souza, Richard M. Carrassai, Ana Paula Carvalho-Assef, Andreza F. Martins, Afonso Luís Barth
Format: Article
Language:English
Published: Elsevier 2025-05-01
Series:Journal of Global Antimicrobial Resistance
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Online Access:http://www.sciencedirect.com/science/article/pii/S2213716525000542
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author Mayana Kieling Hernandez Berdichevski
Rafaela R. Guerra
Dariane C. Pereira
Camila M. Wilhelm
Patricia O. Barth
Melise C. Silveira
Fabiana C.Z. Volpato
Claudio Rocha-de-Souza
Richard M. Carrassai
Ana Paula Carvalho-Assef
Andreza F. Martins
Afonso Luís Barth
author_facet Mayana Kieling Hernandez Berdichevski
Rafaela R. Guerra
Dariane C. Pereira
Camila M. Wilhelm
Patricia O. Barth
Melise C. Silveira
Fabiana C.Z. Volpato
Claudio Rocha-de-Souza
Richard M. Carrassai
Ana Paula Carvalho-Assef
Andreza F. Martins
Afonso Luís Barth
author_sort Mayana Kieling Hernandez Berdichevski
collection DOAJ
description ABSTRACT: Objective: Infections due to carbapenemase-producing Enterobacterales harbouring more than one carbapenemase-encoding gene spread mainly by plasmid and transposon mobilisation. The objective of this study was to analyse the mobile genetic elements carrying blaKPC and blaNDM of Klebsiella pneumoniae carbapenemase co-producers (KpKN). Methods: K. pneumoniae isolates with reduced susceptibility to carbapenems were obtained between 2016 and 2023. To evaluate the genetic environment of KpKN, 22 isolates were selected for antimicrobial susceptibility testing and whole-genome sequencing. Results: The blaKPC-2 gene was carried mainly by IncN/IncFIB, a novel co-integrated plasmid in the Tn4401b transposon. blaNDM-1 was disseminated in the only two KpKN isolates recovered prior to 2020 by the IncHI1B/IncFIB plasmid type within the Tn3000 transposon. Significantly, isolates obtained since 2020 showed the blaNDM-1 gene carried by IncA/C in an IS26-flanked pseudo-composite transposon containing ISCR1, which also had genes that conferred resistance to sulfonamides, aminoglycosides, macrolides, quinolones, amphenicols, tetracyclines, rifampicin, sulfonamide, and trimethoprim. The isolates belonged mainly to ST11 and ST16. Conclusions: Plasmid and transposon changes during different periods could be related to higher dissemination of blaNDM-1, and the large number of resistance genes present in the IS26-flanked transposon may have increased co-selection of this plasmid through the wide use of antimicrobials during the pandemic.
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spelling doaj-art-addc7f359fcb43b0866d240d83d505a72025-08-20T02:57:18ZengElsevierJournal of Global Antimicrobial Resistance2213-71652025-05-014221422110.1016/j.jgar.2025.02.020Plasmidome analyses of Klebsiella pneumoniae co-producing blaKPC-2 and blaNDM-1 in Southern Brazil: characterisation of mobile genetic elementsMayana Kieling Hernandez Berdichevski0Rafaela R. Guerra1Dariane C. Pereira2Camila M. Wilhelm3Patricia O. Barth4Melise C. Silveira5Fabiana C.Z. Volpato6Claudio Rocha-de-Souza7Richard M. Carrassai8Ana Paula Carvalho-Assef9Andreza F. Martins10Afonso Luís Barth11Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil; Laboratório de Pesquisa em Resistência Bacteriana, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil; Corresponding author. Mailing address: Laboratório de Pesquisa em Resistência Bacteriana (LABRESIS), Hospital de Clínicas de Porto Alegre (HCPA), Ramiro Barcelos 2350, Porto Alegre, RS, Brazil.Laboratório de Pesquisa em Resistência Bacteriana, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil; Núcleo de Bioinformática, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, BrazilLaboratório de Pesquisa em Resistência Bacteriana, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, BrazilLaboratório de Pesquisa em Resistência Bacteriana, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, BrazilLaboratório de Pesquisa em Resistência Bacteriana, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, BrazilInstituto Oswaldo Cruz, Fiocruz, Laboratório de Bacteriologia Aplicada à Saúde Única e Resistência Antimicrobiana, Rio de Janeiro, RJ, BrazilLaboratório de Pesquisa em Resistência Bacteriana, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, BrazilInstituto Oswaldo Cruz, Fiocruz, Laboratório de Bacteriologia Aplicada à Saúde Única e Resistência Antimicrobiana, Rio de Janeiro, RJ, BrazilLaboratório de Pesquisa em Resistência Bacteriana, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, BrazilInstituto Oswaldo Cruz, Fiocruz, Laboratório de Bacteriologia Aplicada à Saúde Única e Resistência Antimicrobiana, Rio de Janeiro, RJ, BrazilPrograma de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil; Laboratório de Pesquisa em Resistência Bacteriana, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, Brazil; Núcleo de Bioinformática, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, BrazilPrograma de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil; Laboratório de Pesquisa em Resistência Bacteriana, Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, RS, BrazilABSTRACT: Objective: Infections due to carbapenemase-producing Enterobacterales harbouring more than one carbapenemase-encoding gene spread mainly by plasmid and transposon mobilisation. The objective of this study was to analyse the mobile genetic elements carrying blaKPC and blaNDM of Klebsiella pneumoniae carbapenemase co-producers (KpKN). Methods: K. pneumoniae isolates with reduced susceptibility to carbapenems were obtained between 2016 and 2023. To evaluate the genetic environment of KpKN, 22 isolates were selected for antimicrobial susceptibility testing and whole-genome sequencing. Results: The blaKPC-2 gene was carried mainly by IncN/IncFIB, a novel co-integrated plasmid in the Tn4401b transposon. blaNDM-1 was disseminated in the only two KpKN isolates recovered prior to 2020 by the IncHI1B/IncFIB plasmid type within the Tn3000 transposon. Significantly, isolates obtained since 2020 showed the blaNDM-1 gene carried by IncA/C in an IS26-flanked pseudo-composite transposon containing ISCR1, which also had genes that conferred resistance to sulfonamides, aminoglycosides, macrolides, quinolones, amphenicols, tetracyclines, rifampicin, sulfonamide, and trimethoprim. The isolates belonged mainly to ST11 and ST16. Conclusions: Plasmid and transposon changes during different periods could be related to higher dissemination of blaNDM-1, and the large number of resistance genes present in the IS26-flanked transposon may have increased co-selection of this plasmid through the wide use of antimicrobials during the pandemic.http://www.sciencedirect.com/science/article/pii/S2213716525000542Co-integrated plasmidsBlaKPC-2BlaNDM-1K. pneumoniae co-harbouringBioinformaticsSpread of blaNDM-1
spellingShingle Mayana Kieling Hernandez Berdichevski
Rafaela R. Guerra
Dariane C. Pereira
Camila M. Wilhelm
Patricia O. Barth
Melise C. Silveira
Fabiana C.Z. Volpato
Claudio Rocha-de-Souza
Richard M. Carrassai
Ana Paula Carvalho-Assef
Andreza F. Martins
Afonso Luís Barth
Plasmidome analyses of Klebsiella pneumoniae co-producing blaKPC-2 and blaNDM-1 in Southern Brazil: characterisation of mobile genetic elements
Journal of Global Antimicrobial Resistance
Co-integrated plasmids
BlaKPC-2
BlaNDM-1
K. pneumoniae co-harbouring
Bioinformatics
Spread of blaNDM-1
title Plasmidome analyses of Klebsiella pneumoniae co-producing blaKPC-2 and blaNDM-1 in Southern Brazil: characterisation of mobile genetic elements
title_full Plasmidome analyses of Klebsiella pneumoniae co-producing blaKPC-2 and blaNDM-1 in Southern Brazil: characterisation of mobile genetic elements
title_fullStr Plasmidome analyses of Klebsiella pneumoniae co-producing blaKPC-2 and blaNDM-1 in Southern Brazil: characterisation of mobile genetic elements
title_full_unstemmed Plasmidome analyses of Klebsiella pneumoniae co-producing blaKPC-2 and blaNDM-1 in Southern Brazil: characterisation of mobile genetic elements
title_short Plasmidome analyses of Klebsiella pneumoniae co-producing blaKPC-2 and blaNDM-1 in Southern Brazil: characterisation of mobile genetic elements
title_sort plasmidome analyses of klebsiella pneumoniae co producing blakpc 2 and blandm 1 in southern brazil characterisation of mobile genetic elements
topic Co-integrated plasmids
BlaKPC-2
BlaNDM-1
K. pneumoniae co-harbouring
Bioinformatics
Spread of blaNDM-1
url http://www.sciencedirect.com/science/article/pii/S2213716525000542
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