The Impact of Dietary Transition Metals on Host-Bacterial Interactions.

The Impact of Dietary Transition Metals on Host-Bacterial Interactions.
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DOI:
10.1016/j.chom.2018.05.008
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发表时间:
2018-06-13
影响因子:
30.3
通讯作者:
Skaar EP
Skaar EP
中科院分区:
医学1区
文献类型:
--
作者:
Lopez CA;Skaar EP

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过渡金属是许多对生命至关重要的蛋白质所需的辅因子,它们在细胞内的浓度被小心地维持,以避免缺乏和毒性。为了防御细菌病原体,脊椎动物免疫蛋白螯合金属,特别是锌、铁和锰,作为在称为“营养免疫”的过程中限制细菌获得这些必需营养素的策略。作为回应,细菌已经进化出优雅的策略来获取金属并抵消这种宿主防御。在哺乳动物中,由于饮食摄入或肠道吸收的变化,金属丰度可能会急剧变化,破坏宿主和病原体之间在争夺金属方面的平衡,并改变对疾病的易感性。本文综述了目前对膳食金属如何调节宿主-微生物相互作用及其对疾病结果的影响的认识。
Transition metals are required cofactors for many proteins that are critical for life, and their concentration within cells is carefully maintained to avoid both deficiency and toxicity. To defend against bacterial pathogens, vertebrate immune proteins sequester metals, in particular zinc, iron, and manganese, as a strategy to limit bacterial acquisition of these necessary nutrients in a process termed “nutritional immunity.” In response, bacteria have evolved elegant strategies to access metals and counteract this host defense. In mammals, metal abundance can drastically shift due to changes in dietary intake or absorption from the intestinal tract, disrupting the balance between host and pathogen in the fight for metals and altering susceptibility to disease. This review describes the current understanding of how dietary metals modulate host-microbe interactions and the subsequent impact on the outcome of disease.
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