Iron at the host-microbe interface.

Iron at the host-microbe interface.
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DOI:
10.1016/j.mam.2020.100895
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发表时间:
2020-10
影响因子:
10.6
通讯作者:
Raffatellu M
Raffatellu M
中科院分区:
医学1区
文献类型:
--
作者:
Gerner RR;Nuccio SP;Raffatellu M

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铁是几乎所有生物体必需的微量营养素。除了促进氧化还原反应之外,铁还与参与多种生物过程的金属蛋白结合。由于宿主环境中游离铁的生物利用度极低,铁成为微生物与其宿主之间营养争夺战的中心。呼吸道和胃肠道等粘膜表面不断暴露于共生微生物和病原微生物。虽然哺乳动物抗菌防御的一个关键策略是剥夺微生物的铁,但病原体和一些共生体已经进化出有效的策略来规避铁限制。在这里,我们概述了微生物与其宿主之间铁的拉锯战的机制,特别关注粘膜表面。
Iron is an essential micronutrient for nearly all living organisms. In addition to facilitating redox reactions, iron is bound by metalloproteins that participate in a variety of biological processes. As the bioavailability of free iron in host environments is extremely low, iron lies at the center of a battle for nutrients between microbes and their host. Mucosal surfaces such as the respiratory and gastrointestinal tracts are constantly exposed to commensal and pathogenic microorganisms. Whereas a key strategy of mammalian antimicrobial defense is to deprive microbes of iron, pathogens and some commensals have evolved effective strategies to circumvent iron limitation. Here we provide an overview of mechanisms underpinning the tug-of-war for iron between microbes and their host, with a particular focus on mucosal surfaces.
DOI: 10.1111/j.1574-6968.1983.tb00504.x
发表时间: 1983-01-01
影响因子: 2.1
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