Carbapenemase-producing Klebsiella pneumoniae: molecular and genetic decoding.

Carbapenemase-producing Klebsiella pneumoniae: molecular and genetic decoding.
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DOI:
10.1016/j.tim.2014.09.003
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发表时间:
2014-12
影响因子:
15.9
通讯作者:
Kreiswirth, Barry N.
Kreiswirth, Barry N.
中科院分区:
生物学1区
文献类型:
--
作者:
Chen, Liang;Mathema, Barun;Chavda, Kalyan D.;DeLeo, Frank R.;Bonomo, Robert A.;Kreiswirth, Barry N.

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肺炎克雷伯菌碳青霉烯酶(KPC)于1996年在美国首次发现。从那时起,产生KPC的K.肺炎已经在美国发生,并在国际上传播。blaKPC的传播涉及blaKPC基因和质粒的水平转移以及克隆传播。具有流行病学意义的是,产KPC的K.肺炎链球菌主要与单个多位点序列类型(ST)ST 258及其相关变体相关。然而,导致ST 258成功的分子因素在很大程度上仍不清楚。本文综述了近年来对产生KPC的K. pneumoniae,这有助于我们了解KPC流行性克隆中的质粒和基因组组成和结构,并确定影响其流行病学成功的可能因素。
Klebsiella pneumoniae carbapenemases (KPCs) were first identified in 1996 in the USA. Since then, regional outbreaks of KPC-producing K. pneumoniae have occurred in the USA, and have spread internationally. Dissemination of blaKPC involves both horizontal transfer of blaKPC genes and plasmids, and clonal spread. Of epidemiological significance, the international spread of KPC-producing K. pneumoniae is primarily associated with a single multilocus sequence type (ST), ST258, and its related variants. However, the molecular factors contributing to the success of ST258 largely remain unclear. Here, we review the recent progresses in understanding KPC-producing K. pneumoniae that is contributing to our knowledge of plasmid and genome composition and structure among the KPC epidemic clone, and identify possible factors that influence its epidemiological success.
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