Siderophores in Iron Metabolism: From Mechanism to Therapy Potential.

Siderophores in Iron Metabolism: From Mechanism to Therapy Potential.
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DOI:
10.1016/j.molmed.2016.10.005
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发表时间:
2016-12
影响因子:
13.6
通讯作者:
Tsuji Y
Tsuji Y
中科院分区:
医学1区
文献类型:
--
作者:
Wilson BR;Bogdan AR;Miyazawa M;Hashimoto K;Tsuji Y

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铁是生命必需的营养素。在感染期间,宿主和细菌病原体之间发生了一场激烈的铁获取战。细菌通过分泌铁载体获得铁,铁载体是一种小的三价铁结合分子。作为响应,宿主免疫细胞分泌脂质运载蛋白2(也称为铁载体蛋白),一种铁载体结合蛋白,以防止细菌对载铁铁载体的再摄取。为了应对这种威胁,一些细菌可以产生抗脂质运载蛋白2的铁载体。这篇综述讨论了最近描述的宿主和细菌之间的铁载体铁运输的分子机制,突出了利用病原体铁载体机械治疗耐药性细菌感染的治疗潜力。由于后者反映了医院环境中的持续问题,铁载体靶向或基于铁载体的化合物代表了对抗此类感染的有希望的途径。
Iron is an essential nutrient for life. During infection, a fierce battle of iron acquisition occurs between the host and bacterial pathogens. Bacteria acquire iron by secreting siderophores, small ferric iron binding molecules. In response, host immune cells secrete lipocalin 2 (also known as siderocalin), a siderophore-binding protein, to prevent bacterial reuptake of iron-loaded siderophores. To counter this threat, some bacteria can produce lipocalin 2-resistant siderophores. This review discusses the recently described molecular mechanisms of siderophore iron trafficking between host and bacteria, highlighting the therapeutic potential of exploiting pathogen siderophore machinery for the treatment of antibiotic-resistant bacterial infections. As the latter reflect a persistent problem in hospital settings, siderophore-targeting or siderophore-based compounds represent a promising avenue to combat such infections.
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