基础医学与临床 ›› 2013, Vol. 33 ›› Issue (3): 341-345.

• 研究论文 • 上一篇    下一篇

螺内脂降低大鼠心肌非梗死区MMP/TIMP基因转录及表达

王全志1,杨旸2,陈惠军3,杨廷桐1   

  1. 1. 中国人民解放军第371中心医院
    2. 南方医科大学南方医院
    3. 新乡医学院附属新乡市中心医院
  • 收稿日期:2012-02-21 修回日期:2012-07-11 出版日期:2013-03-05 发布日期:2013-03-05
  • 通讯作者: 杨廷桐

Spirolactone decreased transcription and expression of MMPs/TIMP-2 gene in myocardial noninfarct area of rat

  • Received:2012-02-21 Revised:2012-07-11 Online:2013-03-05 Published:2013-03-05

摘要: 目的 观察螺内脂对大鼠心肌非梗死区组织中MMP/TIMP活性和基因表达的影响,为心肌梗死的防治提供理论依据和新思路。方法 建立大鼠药物干预的心肌梗死模型。用HE染色观察心肌梗死,用免疫组化及RT-PCR方法测定非梗死区心肌组织中MMP-2、MMP-9和TIMP-2的活性及表达。结果 心梗后48h心肌梗死组非梗死区MMP-2、MMP-9和TIMP的表达明显升高,至第4周时仍维持在一个较高的水平(P<0.01)。螺内脂干预使MMP-2和MMP-9表达显著回降(P<0.01),而TIMP-2无明显下降。结论 螺内酯可以降低大鼠非梗死区组织MMP-2、MMP-9/TIMP-2的活性及转录和表达。

关键词: 关键词:心肌梗死, 螺内酯, 基质金属蛋白酶, 基质金属蛋白酶组织抑制剂, 心室重构

Abstract: Objective To investigate the effects of the aldosterone receptor antagonism spironolactone on the relationship between MMPs/TIMPs expression and activity remodeling after myocardial infraction(MI),to explore the molecular mechanism for the prevention of heart failure after MI,and provide a theoretical basis and new ideas. Methods: Myocardial infarction model were set up by drug intervention.Histopathology was detected by HE staining. Immunohistochemical and RT-PCR were used to observe the gene and protein expression of MMP-2,MMP-9,TIMP-2. Results: Post infarction both compare MI and control MMP-2,MMP-9 ,TIMP-2 was increased significantly in 48h,remain maintain higher level in 4 weeks(P<0.01). MMP-2 and MMP-9 patency fallout ,TIMP-2 no-apparent fallout by spirolactone interference. Conclusion: Spirolactone can decreased transcription and expression of MMP-2,MMP-9 / TIMP-2 activity in myocardial noninfarct area of rat.

Key words: keywords: myocardial infarction, spirolactone, matrix metalloproteinases, tissue inhibitors of metalloproteinases, ventricular remodeling

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