Protease activated receptor-2 contributes to heart failure.

Protease activated receptor-2 contributes to heart failure.
复制标题

DOI:
10.1371/journal.pone.0081733
复制
发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Pawlinski R
Pawlinski R
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Antoniak S;Sparkenbaugh EM;Tencati M;Rojas M;Mackman N;Pawlinski R

文献摘要

参考文献

被引文献

相似文献

心力衰竭是世界范围内的主要临床问题。以往的研究表明,G蛋白偶联受体,包括蛋白酶激活受体(PARs),在心脏肥大和衰竭的病理学中发挥重要作用。在体外,心肌细胞上PAR-2的活化已显示诱导肥大生长。PAR-2还参与心肌梗死和缺血/再灌注损伤后的心脏重塑。在这项研究中,我们发现PAR-2诱导肥大生长的培养乳鼠心肌细胞在MEK 1/2和p38依赖的方式。此外,小鼠心肌细胞上的PAR-2活化增加了促纤维化趋化因子MCP-1的表达。此外,小鼠心肌细胞特异性过表达PAR-2可诱导心脏肥大、心脏纤维化、炎症和心力衰竭。最后,在永久性结扎冠状动脉左前降支诱导的心肌梗死小鼠模型中,PAR-2缺乏减弱了心脏重塑并改善了心脏功能,而与其对初始梗死面积的贡献无关。总之,我们的数据表明,PAR-2信号通路有助于肥大和心力衰竭的发病机制。
Heart failure is a major clinical problem worldwide. Previous studies have demonstrated an important role for G protein-coupled receptors, including protease-activated receptors (PARs), in the pathology of heart hypertrophy and failure. Activation of PAR-2 on cardiomyocytes has been shown to induce hypertrophic growth in vitro. PAR-2 also contributes to myocardial infarction and heart remodeling after ischemia/reperfusion injury. In this study, we found that PAR-2 induced hypertrophic growth of cultured rat neonatal cardiomyocytes in a MEK1/2 and p38 dependent manner. In addition, PAR-2 activation on mouse cardiomyocytes increased expression of the pro-fibrotic chemokine MCP-1. Furthermore, cardiomyocyte-specific overexpression of PAR-2 in mice induced heart hypertrophy, cardiac fibrosis, inflammation and heart failure. Finally, in a mouse model of myocardial infarction induced by permanent ligation of the left anterior descending coronary artery, PAR-2 deficiency attenuated heart remodeling and improved heart function independently of its contribution to the size of the initial infarct. Taken together, our data indicate that PAR-2 signaling contributes to the pathogenesis of hypertrophy and heart failure.
DOI: 10.4049/jimmunol.179.8.5493
发表时间: 2007-10-15
影响因子: 4.4
作者:
Afkhami-Goli, Amir;Noorbakhsh, Farshid;Power, Christopher
通讯作者: Power, Christopher
DOI: 10.1111/j.1538-7836.2009.03323.x
发表时间: 2009-05-01
影响因子: 10.4
作者:
Antoniak, S.;Boltzen, U.;Rauch, U.
通讯作者: Rauch, U.
DOI: 10.1159/000338166
发表时间: 2012-01-01
期刊: CARDIOLOGY
影响因子: 1.9
作者:
Gullestad, Lars;Ueland, Thor;Aukrust, Pal
通讯作者: Aukrust, Pal
DOI: 10.1073/pnas.94.15.8121
发表时间: 1997-07-22
影响因子: 11.1
作者:
DAngelo, DD;Sakata, Y;Dorn, GW
通讯作者: Dorn, GW
DOI: 10.1161/01.cir.0000092890.29552.22
发表时间: 2003-10-28
期刊: CIRCULATION
影响因子: 37.8
作者:
Hayashidani, S;Tsutsui, H;Takeshita, A
通讯作者: Takeshita, A