Angiotensin II activates the proinflammatory transcription factor nuclear factor-kappaB in human monocytes.

Angiotensin II activates the proinflammatory transcription factor nuclear factor-kappaB in human monocytes.
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血管紧张素 II 激活人单核细胞中的促炎转录因子核因子 -kappaB。

DOI:
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发表时间:
1999
期刊:
Biochemical and Biophysical Research Communications - BBRC
影响因子:
--
通讯作者:
Wolfgang Kübler
Wolfgang Kübler
中科院分区:
--
文献类型:
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作者:
R. Kranzhöfer;M. Browatzki;Joachim W. Schmidt;Wolfgang Kübler

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肾素-血管紧张素系统可能参与动脉粥样硬化的发病机制。动脉粥样硬化所有阶段的一个共同特征是管壁发炎。转录因子核因子-kappaB(NF-kappaB)参与了参与炎症反应的大多数信号通路。因此,本研究通过凝胶迁移率改变分析检测了血管紧张素II对单核细胞中核因子-kappaB活化的影响,单核细胞是人类动脉粥样硬化的主要细胞成分。血管紧张素Ⅱ和肿瘤坏死因子α一样,在Ficoll密度梯度法分离的人外周血单个核细胞中引起核因子-kappaB的快速激活。血管紧张素AT1受体拮抗剂氯沙坦可阻断这种Ang II效应。通过超移位和竞争实验确定Ang II诱导的核因子-kappaB激活的特异性。此外,Ang II可刺激人单核细胞中的核因子-kappaB的活化,但对同一制剂中的淋巴细胞则无此作用。总之,这些数据证明了血管活性多肽Ang II激活人类单核细胞炎症途径的能力。
The renin-angiotensin system may contribute to the pathogenesis of atherosclerosis. A common feature of all stages of atherosclerosis is inflammation of the vessel wall. The transcription factor nuclear factor-kappaB (NF-kappaB) participates in most signaling pathways involved in inflammation. This study therefore examined the effect of angiotensin (ANG) II on NF-kappaB activation in monocytic cells, a major cellular component of human atheroma, by electrophoretic mobility shift assay. ANG II, like TNFalpha, caused rapid activation of NF-kappaB in human mononuclear cells isolated from peripheral blood by Ficoll density gradient. This ANG II effect was blocked by the angiotensin AT1 receptor antagonist losartan. Specificity of ANG II-induced NF-kappaB activation was ascertained by supershift and competition experiments. Moreover, ANG II stimulated NF-kappaB activation in human monocytes, but not in lymphocytes from the same preparation. Together, the data demonstrate the ability of the vasoactive peptide ANG II to activate inflammatory pathways in human monocytes.
DOI: 10.1002/1529-0131(199811)41:11
发表时间: 1998-11
影响因子: --
作者:
M. Vincenti;C. I. Coon;C. Brinckerhoff
通讯作者: M. Vincenti;C. I. Coon;C. Brinckerhoff
DOI: --
发表时间: 1993-05
期刊: Laboratory investigation; a journal of technical methods and pathology
影响因子: --
作者:
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通讯作者: T. Collins
DOI: 10.1126/science.2343305
发表时间: 1990-05-25
期刊: SCIENCE
影响因子: 56.9
作者:
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