Relationship between the expression of matrix metalloproteinase-9 and angiogenesis in glioma and its clinical significance

被引:0
作者
杨小立 [1 ]
刘淼 [1 ]
王茂德 [2 ]
刘守勋 [2 ]
王拓 [2 ]
王鸿雁 [3 ]
机构
[1] Medical Center of Rehabilitation
[2] Department of Neurosurgery
[3] Department of Pathology,the First Affiliated Hospital,Medical School of Xi'an Jiaotong University
关键词
matrix metalloproteinase-9; glioma; angiogenesis; invasion;
D O I
暂无
中图分类号
R739.4 [神经系肿瘤];
学科分类号
100214 ;
摘要
Objective To explore the role and significance of matrix metalloproteinase-9(MMP-9)in angiogenesis through observing the relationship between the expression of MMP-9 and microvessel density(MVD)in glioma.Methods The expressions of MMP-9 and CD34 in 10 cases of normal brain tissues and 58 cases of glioma(14 cases of grade Ⅰ,20 cases of grade Ⅱ,15 cases of grade Ⅲ,and 9 cases of grade Ⅳ)were detected by immunohistochemical streptavidin-peroxidase technique.The positive cells of MMP-9 and the positive microvessels were examined under binocular light microscope.Results The positive expression of MMP-9 in glioma was located in the tumor-cell cytoplast and endothelial cells.The positive rate of MMP-9 in glioma of grade I,II,III and IV was 42.9%,65.0%,86.7% and 88.9%,respectively.The expression of MMP-9 was obviously higher than that of normal brain tissues(P<0.01)and positively correlated with glioma malignancy(rs=0.597,P<0.05).MVD was correlated with glioma malignancy(H=47.865,P<0.05).The expression of MMP-9 was significantly correlated with MVD(rs =0.897,P<0.01).Conclusion The expressions of MMP-9 and MVD are correlated with glioma malignancy,which may be helpful in judging the malignancy,invasion and prognosis.MMP-9 plays an important role in angiogenesis of glioma and accelerates glioma malignancy development by promoting angiogenesis.
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页码:113 / 118
页数:6
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