Conversion of staphylococcal pathogenicity islands to CRISPR-carrying antibacterial agents that cure infections in mice.

Conversion of staphylococcal pathogenicity islands to CRISPR-carrying antibacterial agents that cure infections in mice.
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将葡萄球菌致病岛转换为治疗小鼠感染的CRISPR抗菌剂。

DOI:
10.1038/nbt.4203
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发表时间:
2018-11
影响因子:
46.9
通讯作者:
Jiang D
Jiang D
中科院分区:
工程技术1区
文献类型:
--
作者:
Ram G;Ross HF;Novick RP;Rodriguez-Pagan I;Jiang D

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金黄色葡萄球菌和其他葡萄球菌继续在医院和社区环境中造成危及生命的感染。它们对抗生素的耐药性越来越强,尤其是β-内酰胺类和氨基糖苷类,它们的感染现在在许多情况下是无法治愈的。在这里,我们提出了一种非抗生素,非噬菌体的方法,通过工程高移动的葡萄球菌致病性岛(SaPIs)治疗葡萄球菌感染。我们用抗菌货物取代SaPIs的毒素基因,产生抗菌无人机(ABDs),该无人机针对动物宿主中的感染细菌,表达其货物,杀死或解除细菌,从而消除感染。作为概念验证,我们构建了带有CRISPR-cas9杀菌或CRISPR-dcas9毒力阻断模块的abd。我们发现,这两种ABDs都能阻断小鼠皮下金黄色葡萄球菌脓肿的发展,而杀菌模块可以拯救腹腔注射致死剂量金黄色葡萄球菌的小鼠。
Staphylococcus aureus and other staphylococci continue to cause life-threatening infections in both hospital and community settings. They have become increasingly resistant to antibiotics, especially β-lactams and aminoglycosides, and their infections are now, in many cases, untreatable. Here, we present a non-antibiotic, non-phage method of treating staphylococcal infections by engineering of the highly mobile staphylococcal pathogenicity islands (SaPIs). We replaced the SaPIs’ toxin genes with antibacterial cargos to generate antibacterial drones (ABDs) that target the infecting bacteria in the animal host, express their cargo, kill or disarm the bacteria and thus abrogate the infection. As proof of concept, we have constructed ABDs with either a CRISPR-cas9 bactericidal or a CRISPR-dcas9 virulence-blocking module. We show that both ABDs block the development of a murine subcutaneous S. aureus abscess and that the bactericidal module rescues mice given a lethal dose of S. aureus intraperitoneally.
DOI: 10.1038/ncomms3345
发表时间: 2013
影响因子: 16.6
作者:
Winstel, Volker;Liang, Chunguang;Sanchez-Carballo, Patricia;Steglich, Matthias;Munar, Marta;Broeker, Barbara M.;Penades, Jose R.;Nuebel, Ulrich;Holst, Otto;Dandekar, Thomas;Peschel, Andreas;Xia, Guoqing
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DOI: 10.1038/nbt.3043
发表时间: 2014-11
影响因子: 46.9
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Bikard, David;Euler, Chad W.;Jiang, Wenyan;Nussenzweig, Philip M.;Goldberg, Gregory W.;Duportet, Xavier;Fischetti, Vincent A.;Marraffini, Luciano A.
通讯作者: Marraffini, Luciano A.
DOI: 10.1016/j.molcel.2014.11.011
发表时间: 2015-01-08
期刊: MOLECULAR CELL
影响因子: 16
作者:
Chen, John;Ram, Geeta;Novick, Richard P.
通讯作者: Novick, Richard P.
DOI: 10.1128/iai.60.7.2636-2640.1992
发表时间: 1992-07-01
影响因子: 3.1
作者:
BUNCE, C;WHEELER, L;BARG, N
通讯作者: BARG, N
DOI: 10.1038/nbt.3011
发表时间: 2014-11
影响因子: 46.9
作者:
Citorik, Robert J.;Mimee, Mark;Lu, Timothy K.
通讯作者: Lu, Timothy K.