Suppr超能文献

白细胞介素-1诱导的核因子κB和c-Jun氨基末端激酶(JNK)激活在白细胞介素-1受体相关激酶(IRAK)处出现分歧。

IL-1-induced NFkappa B and c-Jun N-terminal kinase (JNK) activation diverge at IL-1 receptor-associated kinase (IRAK).

作者信息

Li X, Commane M, Jiang Z, Stark G R

机构信息

Lerner Research Institute, The Cleveland Clinic Foundation, Cleveland, OH 44195, USA.

出版信息

Proc Natl Acad Sci U S A. 2001 Apr 10;98(8):4461-5. doi: 10.1073/pnas.071054198. Epub 2001 Apr 3.

Abstract

Mutant I1A cells, lacking IL-1 receptor-associated kinase (IRAK) mRNA and protein, have been used to study the involvement of IRAK in NFkappaB and c-Jun N-terminal kinase (JNK) activation. A series of IRAK deletion constructs were expressed in I1A cells, which were then tested for their ability to respond to IL-1. Both the N-terminal death domain and the C-terminal region of IRAK are required for IL-1-induced NFkappaB and JNK activation, whereas the N-proximal undetermined domain is required for the activation of NFkappaB but not JNK. The phosphorylation and ubiquitination of IRAK deletion mutants correlate tightly with their ability to activate NFkappaB in response to IL-1, but IRAK can mediate IL-1-induced JNK activation without being phosphorylated. These studies reveal that the IL-1-induced signaling pathways leading to NFkappaB and JNK activation diverge either at IRAK or at a point nearer to the receptor.

摘要

缺乏白细胞介素-1受体相关激酶(IRAK)mRNA和蛋白质的突变I1A细胞已被用于研究IRAK在核因子κB(NFκB)和c-Jun氨基末端激酶(JNK)激活中的作用。一系列IRAK缺失构建体在I1A细胞中表达,然后测试它们对白细胞介素-1作出反应的能力。IRAK的N末端死亡结构域和C末端区域对于白细胞介素-1诱导的NFκB和JNK激活都是必需的,而靠近N端的未确定结构域对于NFκB的激活是必需的,但对JNK的激活不是必需的。IRAK缺失突变体的磷酸化和泛素化与其响应白细胞介素-1激活NFκB的能力紧密相关,但IRAK可以在不被磷酸化的情况下介导白细胞介素-1诱导的JNK激活。这些研究表明,导致NFκB和JNK激活的白细胞介素-1诱导信号通路在IRAK处或在更靠近受体的点处出现分歧。

相似文献

引用本文的文献

2
The IRAK-M death domain: a tale of three surfaces.白细胞介素-1受体相关激酶M死亡结构域:关于三个表面的故事
Front Mol Biosci. 2024 Jan 10;10:1265455. doi: 10.3389/fmolb.2023.1265455. eCollection 2023.
4
IL-1 in Abdominal Aortic Aneurysms.腹主动脉瘤中的白细胞介素-1
J Cell Immunol. 2023;5(2):22-31. doi: 10.33696/immunology.5.163.

本文引用的文献

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验