Center for Research in Anti-Infectives and Biotechnology, Department of Medical Microbiology and Immunology, Creighton University School of Medicine, Omaha, NE 68178, USA.
Antimicrob Agents Chemother. 2011 Aug;55(8):3936-8. doi: 10.1128/AAC.01509-10. Epub 2011 May 16.
Klebsiella pneumoniae carbapenemase (KPC)-producing organisms are therapeutically and diagnostically challenging. It is possible that bla(KPC) gene expression plays a role in the variability observed in clinical susceptibility testing. bla(KPC) transformants together with 10 clinical isolates representing four genera were evaluated for bla(KPC) copy number and gene expression and correlated with β-lactam MIC data. The data suggest that mechanisms other than gene copy number and expression of bla(KPC) contribute to variability in susceptibility when testing KPC-producing isolates.
产碳青霉烯酶肺炎克雷伯菌(KPC)的治疗和诊断极具挑战性。bla(KPC)基因表达可能在临床药敏试验中观察到的变异性中起作用。评估了bla(KPC)转化体以及代表四个属的 10 株临床分离株的 bla(KPC)拷贝数和基因表达,并与β-内酰胺 MIC 数据相关联。数据表明,当测试产 KPC 分离株时,bla(KPC)基因拷贝数和表达以外的机制有助于变异性。