Mycobacterial survival strategies in the phagosome: defence against host stresses.

Mycobacterial survival strategies in the phagosome: defence against host stresses.
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DOI:
10.1111/j.1462-5822.2009.01335.x
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发表时间:
2009-08
影响因子:
3.4
通讯作者:
Schnappinger D
Schnappinger D
中科院分区:
生物学2区
文献类型:
--
作者:
Ehrt S;Schnappinger D

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结核杆菌(Mtb)感染仍然是人类疾病和死亡的主要原因。结核分枝杆菌作为病原体成功的因素之一是它能够承受潜在的杀菌宿主防御和抵抗激活的免疫系统的消除。这种对宿主杀伤的抗性部分是由于分枝杆菌细胞包膜对许多有毒分子的低渗透性。此外,它取决于宿主产生的活性氧和活性氮分子的解毒,这些分子引起的损伤的修复以及在酸性环境中维持中性的细菌内pH。后三种机制是本次审查的重点。
Infections with Mycobacterium tuberculosis (Mtb) remain a major cause of disease and death in humans. Among the factors that contribute to Mtb’s success as a pathogen is its ability to withstand potentially bactericidal host defenses and to resist elimination by an activated immune system. This resistance to killing by the host is in part due to the low permeability of the mycobacterial cell envelope for many toxic molecules. In addition, it depends upon the detoxification of reactive oxygen and reactive nitrogen molecules produced by the host, the repair of the damage these molecules cause and maintenance of a neutral intrabacterial pH within acidic environments. The latter three mechanisms are the focus of this review.
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