Intracellular pathways involved in TNF-α and superoxide anion release by Aβ(1-42)-stimulated primary human macrophages

被引:15
|
作者
Smits, HA [1 ]
de Vos, NM [1 ]
Wat, JWY [1 ]
van der Bruggen, T [1 ]
Verhoef, J [1 ]
Nottet, HSLM [1 ]
机构
[1] Univ Utrecht, Med Ctr Utrecht, Eijkman Winkler Inst, Sect Neuroimmunol, NL-3584 CX Utrecht, Netherlands
关键词
Alzheimer's disease; beta-amyloid; kinases; signal transduction; TNF-alpha;
D O I
10.1016/S0165-5728(01)00254-5
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
In this study, the intracellular signal transduction pathways leading to the production of TNF-alpha and superoxide anions by amyloid-beta -stimulated primary human monocyte-derived macrophages was investigated. Using Western blotting and specific inhibitors it is shown that both ERK 1/2 and p38 MAPK signal transduction pathways as well as PKC are involved in the amyloid-beta -stimulated superoxide anion production. In contrast. only ERK 1/2 MAPK seems to be involved in TNF-alpha production: questioning the connection between PKC and ERK 1/2 activation. Our results suggest the use of ERK 1/2 MAPK inhibitors in the prevention of macrophage activation in the context of Alzheimer's disease. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:144 / 151
页数:8
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