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KPC-2-producing Klebsiella pneumoniae isolated from a Czech patient previously hospitalized in Greece and in vivo selection of colistin resistance
J. Hrabák, J. Niemczyková, E. Chudáčková, M. Fridrichová, V. Studentová, D. Cervená, P. Urbášková, H. Zemličková
Jazyk angličtina Země Česko
Typ dokumentu časopisecké články, práce podpořená grantem
Grantová podpora
NS9717
MZ0
CEP - Centrální evidence projektů
- MeSH
- antibakteriální látky farmakologie MeSH
- bakteriální léková rezistence účinky léků genetika MeSH
- beta-laktamasy biosyntéza genetika MeSH
- hospitalizace MeSH
- Klebsiella pneumoniae účinky léků enzymologie genetika izolace a purifikace MeSH
- kolistin farmakologie MeSH
- lidé MeSH
- mikrobiální testy citlivosti MeSH
- poriny genetika MeSH
- regulace genové exprese u bakterií MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Geografické názvy
- Česká republika MeSH
- Řecko MeSH
Carbapenemase-producing Gram-negative bacteria peak clinical interest due to their ability to hydrolyze most β-lactams, including carbapenems; moreover, their genes spread through bacterial populations by horizontal transfer. Bacteria with acquired carbapenemase have sporadically been reported in the Czech Republic, so far only in Enterobacteriaceae and Pseudomonas aeruginosa. In this study, we described the first finding of a KPC-2-producing strain of Klebsiella pneumoniae, which was isolated from a surgical wound swab, decubitus ulcer, and urine of a patient previously hospitalized in Greece. The patient underwent various antibiotic therapies including a colistin treatment. However, after approximately 20 days of the colistin therapy, the strain developed a high-level resistance to this drug. All the isolates were indistinguishable by pulsed field gel electrophoretic analysis and belonged to the international clone ST258, which is typical of KPC-producing K. pneumoniae isolates. The bla (KPC-2) gene was located on a Tn4401a transposon variant. The OmpK35 and OmpK36 genes analysis performed due to the high resistance level of the strains to β-lactams exhibited no changes in their sequence or in their expression when compared with carbapenem-susceptible isolates.
Citace poskytuje Crossref.org
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