Matrix metalloproteinase inhibitor KB-R7785 attenuates brain damage resulting from permanent focal cerebral ischemia in mice

被引：104

作者：

Jiang, XF

Namura, S

Nagata, I

机构：

[1] Natl Cardiovasc Ctr, Res Inst, Stroke & Brain Protect Lab, Suita, Osaka 5658565, Japan

[2] Natl Cardiovasc Ctr, Dept Neurosurg, Suita, Osaka 5658565, Japan

来源：

NEUROSCIENCE LETTERS | 2001年 / 305卷 / 01期

基金：

日本科学技术振兴机构;

关键词：

matrix metalloproteinase; cerebral ischemia; mice; neuroprotection;

D O I：

10.1016/S0304-3940(01)01800-6

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Matrix metalioproteinases (MMPs) are proteolytic enzymes that can degrade the extracellular matrix. MMP-9 and MMP-2 have been implicated in brain injury formation. The authors examined the effect of MMP inhibitor KB-R7785 on brain infarct formation resulting from permanent focal cerebral ischemia in mice. Ischemia was induced by intraluminal middle cerebral artery occlusion (MCAO) in mice under halothane anesthesia. Zymography was conducted to measure the MMPs activity in ischemic brain tissues. Injection of KB-R7785 (100 mg/kg) 30 min before MCAO significantly decreased both MMP-9 activity and infarct volume determined at 24 h, In addition, KB-R7785 injected twice at 1 and 4.5 h after MCAO significantly decreased infarct volume. These results indicate that KB-R7785 has a protective efficacy against focal cerebral ischemia, and our data provide further evidence that MMP-9 contributes to brain infarct formation. (C) 2001 Elsevier Science Ireland Ltd. All rights reserved.

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页码：41 / 44

页数：4

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