摘要
背景与目的 已有研究发现环氧化酶2(COX 2)和血管内皮生长因子(VEGF)在肿瘤组织中有高表达且对患者的预后有重要影响。本研究拟探讨肺癌组织中COX 2及VEGF的表达及作用。方法 应用组织芯片技术制成126例肺癌组织芯片,采用免疫组化方法对标本中COX 2及VEGF的表达进行检测,并对COX 2的表达情况与疾病生物学特点、患者生存时间等关系进行了回顾性队列研究。结果 COX 2 阳性表达86例(68.25%)。COX 2在肿瘤中的表达与肿瘤T分期、N分期及疾病临床分期等具有密切关系(P<0.05)。VEGF同样在肺癌组织中有高表达(98/126,77.78%),且与COX 2的表达在统计学上具有显著正相关(χ2=6.72,P<0.05)。COX 2和VEGF表达水平与患者生存时间有密切关系(P<0.05)。结论 COX 2与VEGF在人肺癌组织中均有高表达,两者能分别作为患者生存时间预测的单因素影响因子,且同是外科手术切除后的肺癌病例预后较差的标志。
Background and objective Elevated expression of cyclooxygenase-2 (COX-2) has been found to be a feature of tumors recently. In this study, the expression and significance of COX-2 and vascular endothelial growth factor (VEGF) were explored in the cancer tissues of patients with lung cancer. Methods Expression of COX-2 and VEGF in cancer tissues of 126 lung cancer patients were detected by tissue chip and immunohistochemical methods. The relationships among COX-2 expression, survival time and the biology beha- vior of lung cancer were analyzed by retrospective cohort study. Results Expression of COX-2 was positive in 86 cases (68.25%). The correlation between COX-2 expression and some biology behaviors of lung cancer (T stage, N stage and P-TNM stage) was significant in statistics (P<0.05). High expression of VEGF was also found in cancer tissues (98/126, 77.78%). The correlation between COX-2 expression and VEGF expression was significant in statistics (χ 2=6.72, P<0.05). The survival time of patients with positive COX-2 expression and VEGF expression was significantly shorter than that without expression (P<0.05).Conclusion High COX-2 and VEGF expressions are detected in lung cancer tissue. Each of them is suggested to be an independent predictor of survival in survival analysis. COX-2 and VEGF are significant poor prognostic factors in the surgically resected lung cancer.
出处
《中国肺癌杂志》
CAS
2005年第2期112-115,共4页
Chinese Journal of Lung Cancer
关键词
肺肿瘤
环氧化酶
血管内皮生长因子
生存分析
Lung neoplasms Cyclooxygenase-2 Vascular endothelial growth factor Survival analysis
