摘要
用尿型纤溶酶原活化素(u-PA)单抗(MoAb),以抗配体抗体LsAB免疫组化法,检测了35例胃癌和19例结肠癌组织中尿型纤溶酶原活化素受体(u-PAR)。结果表明,胃和结肠癌组织中u-PAR阳性表达率分别为28.57%和36.84%,两者间无明显差异(P>0.05)。浸润型肿瘤组织的u-PM阳性表达率显著高于膨胀型(P<0.05),且u-PAR阳性表达多见于癌组织中散在的肿瘤细胞表面,成团或巢状生长的肿瘤细胞表面表达则较少。同时检测同一组织标本癌基因蛋白C-erbB-2,经图像分析u-PAR和C-erbB-2表达间具有显著相关性(r=0.8028,P<0.05)。提示u-PAR阳性表达与肿瘤细胞浸润能力增强有关。
Urokinase-type plasminogen activator receptor (u-PAR) was determined in 35 cases of stomach carcinoma and 19 cases of colon carcinoma by using anti-ligand immunohistochemical method with u-PA MoAb. Results showed that the positive rate of u-PAR in stomach and colon carcinoma were 28.75% and 36.84% respectively, and no significant difference was found between them (P>0.05) .In 54 specimens of GI cancer, the positive rate of u-PAR in case of infiltrative type was significantly higher than that of the expanding type (P<0.05),and the intense expression of u-PAR was frequently observed in cancer cell which grew dispersedly .Meanwhile,the oncoprotein C-erbB-2 was also examined in the same specimens .By aids of image cytometry,the correlation between the expression of u-PAR and C-erbB-2 was analyzed showing high correlativity of 0.8028 (P<0.05).The results indicated that u-PAR over expression was relevant to the increase of infiltrative ability of cancer cells.
出处
《上海第二医科大学学报》
CSCD
1994年第3期217-220,共4页
Acta Universitatis Medicinalis Secondae Shanghai
关键词
纤溶酶原活化素
受体
癌基因蛋白
胃肿瘤
urokinase-type plasminogen activator
receptor
oncoprotein C-erbB-2