[关键词]
[摘要]
目的: 探讨微小染色体维持蛋白5( MCM 5) 在痰脱落细胞中的表达,用以检测肺癌细胞,为临床早
期发现、探讨方便、快捷的方法。方法: 收集肺癌病人和健康志愿者痰脱落细胞,提取总RNA,逆转录-巢式聚合
酶链反应,免疫组化检测微小染色体维持蛋白5 mRNA 表达水平。结果: 在肺癌36 例痰脱落细胞中MCM 5 阳性
率58. 3%,肺部良性疾病26 例MCM 5 阳性率15%,健康志愿者20 名MCM 5 阳性率0%。肺癌组织中MCM 5
基因表达量在1、2、3 级间差异均有非常显著意义( P<0. 001) 。结论: 痰液脱落细胞中MCM 5 基因检测有助于肺
癌的临床诊断,对早期诊断亦有一定的意义。可以设想作为早期诊断肺癌的标志基因。
[Key word]
[Abstract]
Objective: To study the expression of MCM 5 gene in sputum cells of patients with lung
cancer in order to research the diagnosis. Methods: We collected the sputum samples from 36 cases of
lung cancer and 26 cases of benign pulmonary disease,extracted the total RNA,and then did RT-nest
PCR, immunohistology to check the expressive level of mcm 5 gene. Results: Sensitivities of that are
58. 3%in 36 lung cancer, 15% in other patients and 0% in normal person. The expression of MCM 5
between G1、G2 and G3 lung cancer tissue have very marked statistic significance( P<0. 01) . Conclusion:
It is usable to test the ex pressive level of MCM 5 gene in lung cancer to diagnosis and prediction.
[中图分类号]
R734. 2
[基金项目]
收稿日期: 2014-06-01; 修回日期: 2014-08-02
基金项目: 内蒙古卫生厅项目( 2010)
作者简介: 梁俊国( 1970-) ,男,内蒙古医科大学附属医院胸外科主任医师,医学硕士。