A role for IRF3-dependent RXRalpha repression in hepatotoxicity associated with viral infections.

A role for IRF3-dependent RXRalpha repression in hepatotoxicity associated with viral infections.
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IRF3依赖性rxralpha抑制在与病毒感染相关的肝毒性中的作用。

DOI:
10.1084/jem.20060929
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发表时间:
2006-11-27
影响因子:
15.3
通讯作者:
Cheng, Genhong
Cheng, Genhong
中科院分区:
医学1区
文献类型:
--
作者:
Chow, Edward K.;Castrillo, Antonio;Shahangian, Arash;Pei, Liming;O'Connell, Ryan M.;Modlin, Robert L.;Tontonoz, Peter;Cheng, Genhong

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病毒感染和抗病毒反应与多种代谢性疾病有关,包括雷氏综合征,这是病毒感染情况下阿司匹林引起的肝毒性。我们确定了一个依赖干扰素调节因子 3 (IRF3) 但不依赖 I 型干扰素的途径,该途径强烈抑制视黄醇 X 受体 α (RXRα) 的表达,并抑制其下游靶基因的诱导,包括那些参与肝脏解毒的基因。体内病毒感染激活 IRF3 大大增强了胆汁酸和阿司匹林诱导的肝毒性。我们的结果提供了先天免疫反应和宿主代谢之间的关键联系,确定了 IRF3 介导的 RXRα 下调作为病原体相关代谢疾病的分子机制。
Viral infections and antiviral responses have been linked to several metabolic diseases, including Reye's syndrome, which is aspirin-induced hepatotoxicity in the context of a viral infection. We identify an interferon regulatory factor 3 (IRF3)–dependent but type I interferon–independent pathway that strongly inhibits the expression of retinoid X receptor α (RXRα) and suppresses the induction of its downstream target genes, including those involved in hepatic detoxification. Activation of IRF3 by viral infection in vivo greatly enhances bile acid– and aspirin-induced hepatotoxicity. Our results provide a critical link between the innate immune response and host metabolism, identifying IRF3-mediated down-regulation of RXRα as a molecular mechanism for pathogen-associated metabolic diseases.
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发表时间: 1998-10-01
影响因子: 5.3
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