Allergic host defences.

Allergic host defences.
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过敏宿主防御。

DOI:
10.1038/nature11047
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发表时间:
2012-04-25
期刊:
影响因子:
64.8
通讯作者:
Medzhitov, Ruslan
Medzhitov, Ruslan
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Palm, Noah W.;Rosenstein, Rachel K.;Medzhitov, Ruslan

文献摘要

参考文献

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过敏通常被认为是一种错误的免疫反应的有害结果,这种免疫反应进化成了对大型寄生虫的免疫力。在这里,我们提出的论点是,变态反应免疫在宿主对有毒环境物质的防御中发挥着重要作用,这些环境物质包括毒液、嗜血液、环境异物和刺激物。我们认为,适当的靶向过敏反应是有益的,尽管当它们过度时会变得有害。此外,我们认为,过敏性超敏反应的进化是为了引起预期反应,并促进避免次优环境。
Allergies are generally thought to be a detrimental outcome of a mistargeted immune response that evolved to provide immunity to macro-parasites. Here we present arguments to suggest that allergic immunity plays an important role in host defense against noxious environmental substances, including venoms, hematophagous fluids, environmental xenobiotics and irritants. We argue that appropriately targeted allergic reactions are beneficial, although they can become detrimental when excessive. Furthermore, we suggest that allergic hypersensitivity evolved to elicit anticipatory responses and to promote avoidance of suboptimal environments.
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