Identification of the first blaCMY-2 gene in Salmonella enterica serovar Typhimurium isolates obtained from cases of paediatric diarrhoea illness detected in South America
- Autores
- Cordeiro, Nicolás F.; Yim, Lucía; Betancor, Laura; Cejas, Daniela; García Fulgueiras, Virginia; Mota, María Inés; Varela, Gustavo; Anzalone, Leonardo; Algorta, Gabriela; Gutkind, Gabriel Osvaldo; Ayala, Juan A.; Chabalgoity, José A.; Vignoli, Rafael
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The objectives of this study were to investigate clinical isolates of Salmonella enterica serovar Typhimurium resistant to β-lactam antibiotics, to characterise their mechanisms of antibiotic resistance and to evaluate the possible biological cost of expressing resistance genes. Two oxyimino-cephalosporin-resistant Salmonella isolates obtained from children with diarrhoea were characterised. The occurrence of plasmid-encoded blaCMY-2 genes was confirmed by molecular methods and conjugation assays; transcription levels were determined by quantitative real-time PCR (qRT-PCR). The genomic context of the β-lactamases, replicon type and addiction systems were analysed by PCR. Genomic relatedness of both isolates was studied by pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) assays. Growth curves, motility and invasiveness assays in Caco-2 cells were performed to analyse the bacterial fitness of both isolates. Both isolates carried a blaCMY-2-like allele in an IncI plasmid and belonged to the same MLST sequence type (ST19); nevertheless, they showed extensive differences in their PFGE profiles and virulotypes. Isolate STM709 appeared to lack the Salmonella virulence plasmid and displayed less motility and invasiveness in cultured cells than isolate STM910. qRT-PCR showed that isolate STM709 had higher blaCMY-2 mRNA levels compared with STM910. Altogether, the results suggest that a plasmid carrying blaCMY-2 could be disseminating among different clones of S. Typhimurium. Different levels of blaCMY-2 mRNA could have an effect on the fitness of this micro-organism, resulting in lower invasiveness and motility.
Fil: Cordeiro, Nicolás F.. Universidad de la República; Uruguay
Fil: Yim, Lucía. Universidad de la República; Uruguay
Fil: Betancor, Laura. Universidad de la República; Uruguay
Fil: Cejas, Daniela. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología y Biotecnología. Cátedra de Microbiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: García Fulgueiras, Virginia. Universidad de la República; Uruguay
Fil: Mota, María Inés. Universidad de la República; Uruguay
Fil: Varela, Gustavo. Universidad de la República; Uruguay
Fil: Anzalone, Leonardo. Hospital Policial. Sanidad Policial; Uruguay
Fil: Algorta, Gabriela. Universidad de la República; Uruguay
Fil: Gutkind, Gabriel Osvaldo. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología y Biotecnología. Cátedra de Microbiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ayala, Juan A.. Universidad Autónoma de Madrid; España. Consejo Superior de Investigaciones Científicas; España
Fil: Chabalgoity, José A.. Universidad de la República; Uruguay
Fil: Vignoli, Rafael. Universidad de la República; Uruguay - Materia
-
Salmonella
Cmy 2
Fitness - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/26460
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Identification of the first blaCMY-2 gene in Salmonella enterica serovar Typhimurium isolates obtained from cases of paediatric diarrhoea illness detected in South AmericaCordeiro, Nicolás F.Yim, LucíaBetancor, LauraCejas, DanielaGarcía Fulgueiras, VirginiaMota, María InésVarela, GustavoAnzalone, LeonardoAlgorta, GabrielaGutkind, Gabriel OsvaldoAyala, Juan A.Chabalgoity, José A.Vignoli, RafaelSalmonellaCmy 2Fitnesshttps://purl.org/becyt/ford/3.3https://purl.org/becyt/ford/3The objectives of this study were to investigate clinical isolates of Salmonella enterica serovar Typhimurium resistant to β-lactam antibiotics, to characterise their mechanisms of antibiotic resistance and to evaluate the possible biological cost of expressing resistance genes. Two oxyimino-cephalosporin-resistant Salmonella isolates obtained from children with diarrhoea were characterised. The occurrence of plasmid-encoded blaCMY-2 genes was confirmed by molecular methods and conjugation assays; transcription levels were determined by quantitative real-time PCR (qRT-PCR). The genomic context of the β-lactamases, replicon type and addiction systems were analysed by PCR. Genomic relatedness of both isolates was studied by pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) assays. Growth curves, motility and invasiveness assays in Caco-2 cells were performed to analyse the bacterial fitness of both isolates. Both isolates carried a blaCMY-2-like allele in an IncI plasmid and belonged to the same MLST sequence type (ST19); nevertheless, they showed extensive differences in their PFGE profiles and virulotypes. Isolate STM709 appeared to lack the Salmonella virulence plasmid and displayed less motility and invasiveness in cultured cells than isolate STM910. qRT-PCR showed that isolate STM709 had higher blaCMY-2 mRNA levels compared with STM910. Altogether, the results suggest that a plasmid carrying blaCMY-2 could be disseminating among different clones of S. Typhimurium. Different levels of blaCMY-2 mRNA could have an effect on the fitness of this micro-organism, resulting in lower invasiveness and motility.Fil: Cordeiro, Nicolás F.. Universidad de la República; UruguayFil: Yim, Lucía. Universidad de la República; UruguayFil: Betancor, Laura. Universidad de la República; UruguayFil: Cejas, Daniela. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología y Biotecnología. Cátedra de Microbiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: García Fulgueiras, Virginia. Universidad de la República; UruguayFil: Mota, María Inés. Universidad de la República; UruguayFil: Varela, Gustavo. Universidad de la República; UruguayFil: Anzalone, Leonardo. Hospital Policial. Sanidad Policial; UruguayFil: Algorta, Gabriela. Universidad de la República; UruguayFil: Gutkind, Gabriel Osvaldo. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología y Biotecnología. Cátedra de Microbiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ayala, Juan A.. Universidad Autónoma de Madrid; España. Consejo Superior de Investigaciones Científicas; EspañaFil: Chabalgoity, José A.. Universidad de la República; UruguayFil: Vignoli, Rafael. Universidad de la República; UruguayElsevier2013-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/26460Cordeiro, Nicolás F.; Yim, Lucía; Betancor, Laura; Cejas, Daniela; García Fulgueiras, Virginia; et al.; Identification of the first blaCMY-2 gene in Salmonella enterica serovar Typhimurium isolates obtained from cases of paediatric diarrhoea illness detected in South America; Elsevier; Journal of Global Antimicrobial Resistance; 1; 3; 5-2013; 143-1482213-7165enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S2213716513000441info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jgar.2013.04.003info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:06:39Zoai:ri.conicet.gov.ar:11336/26460instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:06:39.621CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Identification of the first blaCMY-2 gene in Salmonella enterica serovar Typhimurium isolates obtained from cases of paediatric diarrhoea illness detected in South America |
title |
Identification of the first blaCMY-2 gene in Salmonella enterica serovar Typhimurium isolates obtained from cases of paediatric diarrhoea illness detected in South America |
spellingShingle |
Identification of the first blaCMY-2 gene in Salmonella enterica serovar Typhimurium isolates obtained from cases of paediatric diarrhoea illness detected in South America Cordeiro, Nicolás F. Salmonella Cmy 2 Fitness |
title_short |
Identification of the first blaCMY-2 gene in Salmonella enterica serovar Typhimurium isolates obtained from cases of paediatric diarrhoea illness detected in South America |
title_full |
Identification of the first blaCMY-2 gene in Salmonella enterica serovar Typhimurium isolates obtained from cases of paediatric diarrhoea illness detected in South America |
title_fullStr |
Identification of the first blaCMY-2 gene in Salmonella enterica serovar Typhimurium isolates obtained from cases of paediatric diarrhoea illness detected in South America |
title_full_unstemmed |
Identification of the first blaCMY-2 gene in Salmonella enterica serovar Typhimurium isolates obtained from cases of paediatric diarrhoea illness detected in South America |
title_sort |
Identification of the first blaCMY-2 gene in Salmonella enterica serovar Typhimurium isolates obtained from cases of paediatric diarrhoea illness detected in South America |
dc.creator.none.fl_str_mv |
Cordeiro, Nicolás F. Yim, Lucía Betancor, Laura Cejas, Daniela García Fulgueiras, Virginia Mota, María Inés Varela, Gustavo Anzalone, Leonardo Algorta, Gabriela Gutkind, Gabriel Osvaldo Ayala, Juan A. Chabalgoity, José A. Vignoli, Rafael |
author |
Cordeiro, Nicolás F. |
author_facet |
Cordeiro, Nicolás F. Yim, Lucía Betancor, Laura Cejas, Daniela García Fulgueiras, Virginia Mota, María Inés Varela, Gustavo Anzalone, Leonardo Algorta, Gabriela Gutkind, Gabriel Osvaldo Ayala, Juan A. Chabalgoity, José A. Vignoli, Rafael |
author_role |
author |
author2 |
Yim, Lucía Betancor, Laura Cejas, Daniela García Fulgueiras, Virginia Mota, María Inés Varela, Gustavo Anzalone, Leonardo Algorta, Gabriela Gutkind, Gabriel Osvaldo Ayala, Juan A. Chabalgoity, José A. Vignoli, Rafael |
author2_role |
author author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
Salmonella Cmy 2 Fitness |
topic |
Salmonella Cmy 2 Fitness |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/3.3 https://purl.org/becyt/ford/3 |
dc.description.none.fl_txt_mv |
The objectives of this study were to investigate clinical isolates of Salmonella enterica serovar Typhimurium resistant to β-lactam antibiotics, to characterise their mechanisms of antibiotic resistance and to evaluate the possible biological cost of expressing resistance genes. Two oxyimino-cephalosporin-resistant Salmonella isolates obtained from children with diarrhoea were characterised. The occurrence of plasmid-encoded blaCMY-2 genes was confirmed by molecular methods and conjugation assays; transcription levels were determined by quantitative real-time PCR (qRT-PCR). The genomic context of the β-lactamases, replicon type and addiction systems were analysed by PCR. Genomic relatedness of both isolates was studied by pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) assays. Growth curves, motility and invasiveness assays in Caco-2 cells were performed to analyse the bacterial fitness of both isolates. Both isolates carried a blaCMY-2-like allele in an IncI plasmid and belonged to the same MLST sequence type (ST19); nevertheless, they showed extensive differences in their PFGE profiles and virulotypes. Isolate STM709 appeared to lack the Salmonella virulence plasmid and displayed less motility and invasiveness in cultured cells than isolate STM910. qRT-PCR showed that isolate STM709 had higher blaCMY-2 mRNA levels compared with STM910. Altogether, the results suggest that a plasmid carrying blaCMY-2 could be disseminating among different clones of S. Typhimurium. Different levels of blaCMY-2 mRNA could have an effect on the fitness of this micro-organism, resulting in lower invasiveness and motility. Fil: Cordeiro, Nicolás F.. Universidad de la República; Uruguay Fil: Yim, Lucía. Universidad de la República; Uruguay Fil: Betancor, Laura. Universidad de la República; Uruguay Fil: Cejas, Daniela. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología y Biotecnología. Cátedra de Microbiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: García Fulgueiras, Virginia. Universidad de la República; Uruguay Fil: Mota, María Inés. Universidad de la República; Uruguay Fil: Varela, Gustavo. Universidad de la República; Uruguay Fil: Anzalone, Leonardo. Hospital Policial. Sanidad Policial; Uruguay Fil: Algorta, Gabriela. Universidad de la República; Uruguay Fil: Gutkind, Gabriel Osvaldo. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Microbiología, Inmunología y Biotecnología. Cátedra de Microbiología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Ayala, Juan A.. Universidad Autónoma de Madrid; España. Consejo Superior de Investigaciones Científicas; España Fil: Chabalgoity, José A.. Universidad de la República; Uruguay Fil: Vignoli, Rafael. Universidad de la República; Uruguay |
description |
The objectives of this study were to investigate clinical isolates of Salmonella enterica serovar Typhimurium resistant to β-lactam antibiotics, to characterise their mechanisms of antibiotic resistance and to evaluate the possible biological cost of expressing resistance genes. Two oxyimino-cephalosporin-resistant Salmonella isolates obtained from children with diarrhoea were characterised. The occurrence of plasmid-encoded blaCMY-2 genes was confirmed by molecular methods and conjugation assays; transcription levels were determined by quantitative real-time PCR (qRT-PCR). The genomic context of the β-lactamases, replicon type and addiction systems were analysed by PCR. Genomic relatedness of both isolates was studied by pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) assays. Growth curves, motility and invasiveness assays in Caco-2 cells were performed to analyse the bacterial fitness of both isolates. Both isolates carried a blaCMY-2-like allele in an IncI plasmid and belonged to the same MLST sequence type (ST19); nevertheless, they showed extensive differences in their PFGE profiles and virulotypes. Isolate STM709 appeared to lack the Salmonella virulence plasmid and displayed less motility and invasiveness in cultured cells than isolate STM910. qRT-PCR showed that isolate STM709 had higher blaCMY-2 mRNA levels compared with STM910. Altogether, the results suggest that a plasmid carrying blaCMY-2 could be disseminating among different clones of S. Typhimurium. Different levels of blaCMY-2 mRNA could have an effect on the fitness of this micro-organism, resulting in lower invasiveness and motility. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-05 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/26460 Cordeiro, Nicolás F.; Yim, Lucía; Betancor, Laura; Cejas, Daniela; García Fulgueiras, Virginia; et al.; Identification of the first blaCMY-2 gene in Salmonella enterica serovar Typhimurium isolates obtained from cases of paediatric diarrhoea illness detected in South America; Elsevier; Journal of Global Antimicrobial Resistance; 1; 3; 5-2013; 143-148 2213-7165 |
url |
http://hdl.handle.net/11336/26460 |
identifier_str_mv |
Cordeiro, Nicolás F.; Yim, Lucía; Betancor, Laura; Cejas, Daniela; García Fulgueiras, Virginia; et al.; Identification of the first blaCMY-2 gene in Salmonella enterica serovar Typhimurium isolates obtained from cases of paediatric diarrhoea illness detected in South America; Elsevier; Journal of Global Antimicrobial Resistance; 1; 3; 5-2013; 143-148 2213-7165 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S2213716513000441 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jgar.2013.04.003 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
_version_ |
1844613918293491712 |
score |
13.070432 |