MMP-9、uPA及CD34与胃癌侵袭和转移及其相关性

目的:对基质金属蛋白酶-9(Metrix metalloproteinase-9,MMP-9)、尿激酶型纤溶酶原激活物(uro-kinase-type plasminogen activator,uPA)及血管标志物CD34与胃癌侵袭和转移的关系及其相关性进行研究。方法:选择临床病理资料完整的胃癌蜡块标本54例,正常胃黏膜标本15例作对照。采用SP免疫组化方法检测MMP-9、uPA、CD34的表达。结果:MMP-9、uPA在胃癌组织中高表达,并随分级的降低、淋巴转移的发生、临床分期的提高而明显增高(P均<0.05)。CD34在胃癌组织中高表达,并随分级的降低、远隔转移的发生、临床分期的提高而明显增高(P均<0.05)。胃癌中MMP-9与CD34的表达呈正相关(P<0.01);uPA与CD34的表达呈正相关(P<0.01)。结论:MMP-9、uPA、CD34对胃癌的发生、发展、侵袭和转移起重要的促进作用。MMP-9、uPA、CD34在胃癌的发生、发展、侵袭和转移中相互促进,相互协调,关系密切。MMP-9、CD34、uPA各自都可以成为胃癌诊断和预后估计的指标。CD34可以作为胃癌中微血管密度(microvesseldensity,MVD)的有效标记物,同时为胃癌的分子生物学治疗提供新靶点。

Relationship of expression of MMP-9, uPA and CD34 with invasion and metastasis in gastric cancer and their relationship

Objective:To study the relation of MMP-9,uPA,CD34 invasion and metastasis of gastric cancer and their relationship.Methods:Immunohistochemistry was used to examine the expression of MMP-9,uPA,CD34 proteins in gastric carcinoma(n=216) and normal gastric mucosa(n = 60).Results:MMP-9 and uPA were high expressed in gastric cancer and with the decrease of differentiation,lymphatic metastasis,increase of clinical stage,the expression is increased(P<0.05).CD34 was highly expressed in gastric cancer and with the de...