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法舒地尔减轻大鼠心肌缺血再灌注损伤机制 被引量:1

The mechanism of alleviation of acute myocardial ischemia/reperfusion injury in rats by Fasudil
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摘要 目的 探讨盐酸法舒地尔减轻大鼠急性心肌缺血再灌注损伤,抑制细胞凋亡,发挥药物后适应作用的可能机制.方法 将90只SD大鼠随机均分为五组:假手术组(Sham组)、缺血再灌注组(I/R组)、缺血后适应组(IPost组)、盐酸法舒地尔组(FH组)、盐酸法舒地尔+PI3K抑制剂(LY294002)组(FH +Ⅰ组).测定各组大鼠心肌细胞Rho相关卷曲螺旋形成蛋白激酶(ROCK)、Bcl-2、Bax、Caspase-3、Akt、P-Akt的表达.结果 与I/R组(ROCK1:2.94±0.13)相比,IPost组(ROCK1:2.79±0.11)、FH组(ROCK1:2.83 ±0.10)、FH +Ⅰ组(ROCK1:2.85 ±0.26)的ROCK1表达无明显变化;与I/R组(Bcl-2:1.11±0.12,P-Akt:1.09±0.06,Bax:1.74 ±0.06,Caspase-3:1.32±0.12)相比,FH组(Bcl-2:1.76±0.08,P-Akt:1.73±0.05,Bax:0.98±0.14,Caspase-3:0.97±0.06)与IPost组(Bcl-2:1.74±0.06,P-Akt:1.37±0.05,Bax:0.97±0.11,Caspase-3:1.07±0.08)的Bcl-2、P-Akt升高(P<0.05),Bax及Caspase-3降低(P<0.05);与FH组相比,FH+Ⅰ组(Bcl-2:1.05±0.12,P-Akt:1.21±0.06,Bax:1.61 ±0.11,Caspase-3:1.42±0.11)的Bcl-2、P-Akt表达降低,Bax及Caspase-3表达升高(P<0.05).结论 盐酸法舒地尔后适应效应机制可能与抑制ROCK活性及激活PI3 K-Akt通路有关. Objective To explore the potential mechanism of Fasudil hydrochloride pharmacologic postconditioning that alleviated acute myocardial ischemia/reperfusion injury (MI/RI) in rats,narrowed the scope of infacted myocardium,and inhibited cell apoptosis.Methods Ninety rats were randomly and averagely divided into 5 groups:sham group,ischemia/reperfusion (I/R) group,ischemic postconditioning (IPost) group,fasudil hydrochloride (FH) group,and FH and PI3K inhibitor (LY294002) (FH + I) group.The expressions of Rho associated coiled-coil forming protein kinase-1 (ROCK-1),Bcl-2,Bax,Caspase-3,Akt,and P-Akt in rat myocardial cells were determined.Results Compared to I/R group (ROCK1:2.94 ± 0.13),ROCK1 expression was not changed in IPost group (ROCK1:2.79 ± 0.11),FH group (ROCK1:2.83 ± 0.10),and FH + I group (ROCK1:2.85 ± 0.26).Compared to I/R group (Bcl-2:1.11 ± 0.12,P-Akt:1.09 ± 0.06,Bax:1.74 ± 0.06,and caspase-3:1.32 ± 0.12),the expressions of Bcl-2 and P-Akt in FH group (Bcl-2:1.76 ± 0.08,and P-Akt:1.73 ± 0.05) and IPost group (Bcl-2:1.74 ± 0.06,and P-Akt:1.37 ± 0.05) were all significantly higher than those in I/R group (P 〈 0.05),while the expressions of Bax and caspase-3 in FH group (Bax:0.98 ±0.14,and caspase-3:0.97 ±0.06) and IPost group (Bax:0.97 ±0.11,and caspase-3:1.07 ±0.08) were all significantly lower than those in I/R group (P 〈0.05).Compared to FH group,the expressions of Bcl-2 and P-Akt in FH + I group (Bcl2:1.05 ±0.12,and P-Akt:1.21 ±0.06) were decreased (P 〈0.05),while the levels of Bax and caspase-3 (Bax:1.61 ±0.11,and caspase-3:1.42 ± 0.11) were increased (P 〈 0.05).Conclusions The mechanism of FH postconditioning was associated with the inhibition of ROCK activity,and the activation of PI3K-Akt pathway.
出处 《中国医师杂志》 CAS 2014年第5期608-611,共4页 Journal of Chinese Physician
基金 上海市宝山区科委课题(10-E-4) 上海交通大学医学院科技基金项目(YZ1028)
关键词 1-(5-异喹啉磺酰基)-2-甲基哌嗪 类似物和衍生物 1-(5-异喹啉磺酰基)-2-甲基哌嗪 药理学 心肌再灌注损伤 药物疗法 大鼠 Sprague-Dawley 1-(5-isoquinolinesulfonyl)-2-methylpiperazine/analogs & derivatives 1-(5-isoquinolinesulfonyl)-2-methylpiperazine/pharmacology Myocardial reperfusion injury/drug therapy Rats, Sprague-Dawley
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