Emergence of GES-19-producing Pseudomonas aeruginosa exoU+ belonging to the global high-risk clone ST235 in cystic fibrosis infection.
Diagn Microbiol Infect Dis
; 101(1): 115454, 2021 Sep.
Article
em En
| MEDLINE
| ID: mdl-34271235
ABSTRACT
The emergence of high-risk clones of priority pathogens exhibiting convergence of antimicrobial resistance and virulence is a critical issue worldwide. In a previous study, an extensively drug-resistant Pseudomonas aeruginosa was isolated from a chronically colonized pediatric patient with cystic fibrosis (CF). In this study, we analyzed genomic data of this strain (CF023-Psa42), extracting clinically and epidemiologically relevant information (i.e., the antimicrobial resistome, virulome, and sequence type). In this regard, we report the emergence of GES-19 (extended-spectrum ß-lactamase)-producing P. aeruginosa with genotype exoU+. The CF023-Psa42 strain exhibited a broad resistome, belonging to the international high-risk clone sequence type ST235. The blaGES-19 gene was located on a class 1 integron, along to aac(6')-33, aac(6')-Ib-cr, blaOXA-2, aadA1, sul1, and qacEΔ1 resistance genes. Relevant virulence genes such as lasA (proteolysis and elastolysis), toxA (exotoxin A), alg (alginate biosynthesis operon), and exoU (toxin of type III secretion systems) were predicted. Our findings reveal the convergence of broad resistome and virulome in P. aeruginosa ST235. Genomic surveillance is essential to monitor the emergence and dissemination of priority pathogens with epidemiological success.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Pseudomonas aeruginosa
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Infecções por Pseudomonas
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Beta-Lactamases
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Fibrose Cística
Tipo de estudo:
Etiology_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Child
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Female
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Humans
Idioma:
En
Revista:
Diagn Microbiol Infect Dis
Ano de publicação:
2021
Tipo de documento:
Article