Innate immune detection of microbial nucleic acids.

Innate immune detection of microbial nucleic acids.
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DOI:
10.1016/j.tim.2013.04.004
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发表时间:
2013-08
影响因子:
15.9
通讯作者:
Bowie, Andrew G.
Bowie, Andrew G.
中科院分区:
生物学1区
文献类型:
--
作者:
Guertler, Claudia;Bowie, Andrew G.

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通过模式识别受体(PRRs)检测病原体来源的核酸对于宿主启动适当的免疫反应是必不可少的,对病毒来说,这涉及到I型干扰素(IFN)的诱导。另一方面,自身核酸对PRRs的不适当激活可导致自身免疫。最近PRR研究的进展揭示了重要的新的分子细节,如Toll样受体和RIG-I样受体如何区分病原体和自身RNA,而细胞内诱导干扰素的DNA传感通路的发现揭示了全新的先天信号机制,也质疑了先天免疫如何区分自体和异体DNA。
Detection of pathogen-derived nucleic acids by pattern recognition receptors (PRRs) is essential for the host to mount an appropriate immune response, which for viruses involves the induction of type I interferons (IFNs). On the other hand, inappropriate activation of PRRs by self nucleic acids can lead to autoimmunity. Recent developments in PRR research have uncovered important new molecular details as to how Toll-like receptors and RIG-I-like receptors distinguish pathogen- from self-RNA, while the discovery of cytosolic DNA sensing pathways for IFN induction has revealed completely new innate signaling mechanisms, and also questions how innate immunity discriminates between self- and non-self DNA, if at all.
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