摘要
目的分析非小细胞肺癌DNA含量与其生物学行为之间的关系,并评价DNA含量在判断非小细胞肺癌预后方面的价值。方法 采用流式细胞仪(FCM)测定58例手术切除的非小细胞肺癌新鲜标本,以正常肺组织作为参照标本,计算DNA指数(DI)。应用Cox模型评价DNA含量在非小细胞肺癌中的预后价值。结果定性分析发现,DNA倍性(二倍体与非二倍体)与原发肿瘤大小、淋巴结转移、临床分期、病理类型和分级以及生存期无明显关系。定量分析显示,原发肿瘤直径>3 cm、淋巴结有转移、临床分期晚(Ⅲ期或Ⅳ期)、腺癌和生存期短的患者,其DNA指数均值高,差异有显著性。Cox模型预后因素分析发现,DNA指数大小是影响非小细胞肺癌预后的因素,DNA指数>2.0是影响非小细胞肺癌的独立预后因素。结论DNA指数大小在评价非小细胞肺癌生物学行为和预后方面具有一定意义。
Objective To analyze the relationship between DNA content and biological behavior and its prognostic significance in non-small cell lung cancer. Methods Tumor DNA content was determined by flow cytometry in the specimens from 58 patients with resected non-small cell lung cancer. The DNA content of each cell subpopulation was expressed as the DNA index (DI), and an internal standard was provided by the normal pulmonary parenchyma! cells in the same specimen. The prognostic value of DNA content in non-small cell lung cancer was assessed by Cox's model analysis. Results In qualitative analysis, there was no relationship^between DNA ploidy (diploidy or aneuploidy) and the following factors: tumor size, metastasis of lymph node, clinical stage, pathologic type, pathologic grade or survival. In quantitative analysis, high DNA index was observed in tumor size > 3 cm, metastasis of lymph node, stage IE/IV , adenocarcinoma and shorter survival, which was statistically significant. Cox's model analysis showed that DNA index was a prognostic factor in non-small cell lung cancer and DNA index > 2.0 was an independent prognostic factor. Conclusion DNA index analysis is useful for the evaluation of the biological behavior and the prognosis of non-small cell lung cancer.
出处
《中华肿瘤杂志》
CAS
CSCD
北大核心
2003年第1期55-58,共4页
Chinese Journal of Oncology
