The ups and downs of MEK kinase interactions

被引:252
作者
Hagemann, C [1 ]
Blank, JL [1 ]
机构
[1] Univ Leicester, Dept Cell Physiol & Pharmacol, Leicester LE1 9HN, Leics, England
关键词
MEKK; MEK kinase; stress-activated protein kinase cascade; JNK/SAPK; p38; protein-protein interactions; signal transduction; MEKK regulators; MEKK substrates;
D O I
10.1016/S0898-6568(01)00220-0
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
MEK kinases (MEKKs) comprise a family of related serine-threonine protein kinases that regulate mitogen-activated protein kinase (MAPK) signalling pathways leading to c-Jun NH2-terminal kinase (JNK) and p38 activation, induced by cellular stress (e.g., UV and gamma irradiation, osmotic stress., heat shock, protein synthesis inhibitors), inflammatory cytokines (e.g., tumour necrosis factor alpha, TNF alpha and interleukin-1, IL1) and G protein-coupled receptor agonists (e.g., thrombin). These stress-activated kinases have been implicated in apoptosis, oncogenic transformation, and inflammatory responses in various cell types. At present, the signalling events involving MEKKs are not well understood. This review summarises our current knowledge concerning the regulation and function of MEKK family members, with particular emphasis on those factors capable of directly interacting with distinct MEKK isoforms. (C) 2001 Elsevier Science Inc. All rights reserved.
引用
收藏
页码:863 / 875
页数:13
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