Differential effects of type I and II interferons on myeloid cells and resistance to intracellular bacterial infections.

Differential effects of type I and II interferons on myeloid cells and resistance to intracellular bacterial infections.
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DOI:
10.1007/s12026-012-8362-y
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发表时间:
2013-03
影响因子:
4.4
通讯作者:
Lenz, Laurel L.
Lenz, Laurel L.
中科院分区:
医学4区
文献类型:
--
作者:
Kearney, Staci;Delgado, Christine;Lenz, Laurel L.

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I 型和 II 型干扰素 (IFN) 在病毒和细菌感染期间以及自身免疫和肿瘤疾病的免疫反应调节中发挥着重要作用。这两种 IFN 类型与几乎所有细胞表达的不同细胞表面受体结合,以触发信号转导事件并引发不同的细胞反应。在某些情况下,I 型和 II 型干扰素会引发类似的细胞反应,而在其他情况下,干扰素对宿主细胞具有独特或拮抗作用。 IFN 信号传导的负调节因子还调节细胞对 IFN 的反应,并在维持免疫稳态中发挥重要作用。在这篇综述文章中,我们概述了干扰素如何刺激细胞反应。我们讨论了 I 型和 II 型干扰素对宿主对某些细胞内细菌感染的抵抗力的不同影响,并概述了已提出的解释这些不同影响的模型。还介绍了 I 型和 II 型 IFN 之间的拮抗串扰机制。
The type I and II interferons (IFNs) play important roles in regulating immune responses during viral and bacterial infections and in the context of autoimmune and neoplastic diseases. These two IFN types bind to distinct cell surface receptors that are expressed by nearly all cells to trigger signal transduction events and elicit diverse cellular responses. In some cases, type I and II IFNs trigger similar cellular responses while in other cases the IFNs have unique or antagonistic effects on host cells. Negative regulators of IFN signaling also modulate cellular responses to the IFNs and play important roles in maintaining immunological homeostasis. In this review article, we provide an overview of how IFNs stimulate cellular responses. We discuss the disparate effects of type I and II IFNs on host resistance to certain intracellular bacterial infections and provide an overview of models that have been proposed to account for these disparate effects. Mechanisms of antagonistic cross talk between type I and II IFNs are also introduced.
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