非小细胞肺癌组织中血管内皮生长因子和变异型细胞间黏附分子的表达

目的　了解血管内皮生长因子 (VEGF)、变异型细胞间黏附分子 (CD4 4v6 )在非小细胞肺癌 (NSCLC)组织中的表达。方法　采用链霉素抗生物素蛋白 过氧化物酶 (SP)免疫组织化学方法 ,分析VEGF、CD4 4v6在 35例Ⅰ～Ⅱ期、2 7例Ⅲ～Ⅳ期NSCLC患者的癌组织中的表达 ,其中 5 0例患者有淋巴结转移、12例患者无淋巴结转移 ,中、高分化 39例、低分化 2 3例 ;随访 1997年 1月至 1999年 7月期间治疗的 4 2例患者 ,计算 3年生存率 ,用Cox比例风险模型分析生存时间的影响因素。结果　VEGF、CD4 4v6在NSCLC组织中表达阳性率分别为 73% (45 /6 2 )、6 9% (43/6 2 ) ,均明显高于癌旁正常组织 (χ2 值分别为 2 4 2 0 7、2 5 186 ,P均 <0 0 1)。VEGF、CD4 4v6的表达与临床分期及有无淋巴结转移有明显相关 ,有淋巴结转移者的阳性率明显高于无淋巴结转移者 (χ2 值分别为 7 14 6、5 376 ,P均 <0 0 5 ) ;Ⅲ～Ⅳ期患者的VEGF、CD4 4v6阳性率均明显高于Ⅰ～Ⅱ期患者 (χ2 值分别为6 392、12 15 2 ,P均 <0 0 5 )。VEGF、CD4 4v6阳性患者的 3年生存率 ,均明显低于阴性患者 (χ2 值分别为 4 36、7 2 1,P均 <0 0 5 )。除TNM临床分期、有无淋巴结转移外 ,VEGF及CD4 4v6也为影响患者 3年生存率的独立因素。结论　VEGF、CD4 4

The expression of vascular endothelial growth factor, CD44v6 in non-small cell lung carcinoma

OBJECTIVE: To investigate the expression of vascular endothelial growth factor (VEGF), CD44v6 in non-small cell lung carcinoma. METHODS: The expression of VEGF and CD44v6 in 35 cases I approximately II stages, 27 cases III approximately IV stages and 50 cases with the metastasis of lymph nodes, 12 cases without metastasis of non-small cell lung carcinoma (NSCLC) tissues were studied by SP immunohistochemistry staining, and the 3 years survival rates were calculated in 42 cases patients. RESULTS: The positive rates of VEGF and CD44v6 in NSCLC were 73% and 69%, respectively. They were both higher than those of matched normal lung tissues, P < 0.01. The expression of VEGF and CD44v6 were related to clinical stages and metastasis of lymph nodes significantly. The expression rates of the two markers in NSCLC with the metastasis of lymph nodes were higher than those without metastasis, chi(2) = 7.146 and 5.376 respectively, and those of III approximately IV stages were higher than those of I approximately II Stages, chi(2) = 6.392 and 12.152 respectively. Survival rates of three years were lower to those patients with positive expression of the two makers than those with negative expression. In a multivariate analysis, besides TNM stages and metastasis of lymph nodes, the positive expression of CD44v6 and the positive expression of VEGF were also the independent prognostic factors to affect the Survival time. CONCLUSION: The VEGF and CD44v6 protein may act as one of important indexes to indicate the process of infiltration and metastasis in NSCLC.