Angiotensin II induces EMMPRIN expression in THP-1 macrophages via the NF-κB pathway

被引：15
作者：
Yang, Li-xia [1 ]
Liu, Hong [1 ]
Guo, Rui-wei [1 ]
Ye, Jinshan [1 ]
Wang, Xian-mei [1 ]
Qi, Feng [1 ]
Guo, Chuan-ming [1 ]
Liang, Xing [1 ]
机构：
[1] Kunming Gen Hosp, Chengdu Mil Area, Dept Cardiol, Kunming 650032, Yunnan, Peoples R China
来源：
REGULATORY PEPTIDES | 2010年 / 163卷 / 1-3期
关键词：
Angiotensin II; EMMPRIN; NF-kappa B; Matrix metalloproteinase-9; THP-1; macrophages; MATRIX METALLOPROTEINASE INDUCER; SMOOTH-MUSCLE-CELLS; VULNERABLE PLAQUE; TISSUE INHIBITOR; ACTIVATION; TUMOR; RECEPTOR; CD147; INFLAMMATION; INVOLVEMENT;
D O I：
10.1016/j.regpep.2010.04.012
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
Background Recent studies on atherosclerosis showed that an inducer of MMPs. EMMPRIN, is highly expressed in human atheromas This suggested the important role of EMMPRIN in the stability of atherosclerotic plaques Angiotensin II, one of the main functional peptides in the renin-angiotensin system, is involved in the advancement of atherosclerosis We evaluated the effect of angiotensin II on EMMPRIN expression in THP-1 macrophages, and postulated the potential mechanisms underlying its effects. Methods and results We established THP-1 macrophages using PMA The effect of angII on EMMPRIN expression in THP-1 macrophages was then investigated Results from analyses of RT-PCR and western blotting showed that angII could upregulate EMMPRIN expression This was mediated via the AT(1)R, but not the AT(2)R The NF-kappa B inhibitor PDTC and P65 RNAI treatment could suppress the effect of angII on EMMPRIN, suggesting the involvement of the NF-kappa B pathway A gelatin zymography assay showed that MMP-9 activity was related to EMMPRIN expression Conclusion AngII upregulates the expression of EMMPRIN NF-kappa B is the critical factor involved in the upregulation of EMMPRIN induced by angII. (C) 2010 Elsevier B V All rights reserved.
引用
收藏
页码：88 / 95
页数：8
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