Evaluation of the Combination of APC and DCC Gene Methylation in the Early Diagnosis of Lung Cancer
10.3969/j.issn.1671-7414.2016.01.005
- VernacularTitle:腺瘤样结肠息肉易感基因（APC）及结直肠癌缺失基因（DCC）基因甲基化在肺癌早期诊断的意义
- Author:
Liyan MA
;
Jing LIANG
;
Jianlong ZHOU
- Publication Type:Journal Article
- Keywords:
lung cancer;
APC gene;
DCC gene;
methylation
- From:
Journal of Modern Laboratory Medicine
2016;(1):17-20
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the significanceof both the adenomatous polyposis coli (APC)and deleted in colorectal carcinoma (DCC)gene methylation in the early diagnosis of lung cancer.Methods 245 patients with lung cancer and 150 patients with non-malignant lung disease patients and 40 healthy volunteers were drawn for the experiment.A methylation specific PCR (MSP)was used to detect the methylation status of APC and DCC in the peripheral blood.Results The posi-tive rates of APC and DCC genes promoter methylation Peripheral blood of patients with lung cancer were 26.53% (65/245)and 36.33% (89/245),respectively.The positive rates of APC and DCC genes promoter methylation Peripheral blood of patients with benign lung diseases were 2.67% (4/150),8.00%(12/150),respectively.The positive rates of APC and DCC genes promoter methylation Peripheral blood of healthy volunteers were 0.There was a significant difference between patients with the lung cancer,those with the benign lung diseases and Healthy volunteers (P <0.01).The sensitivity and specificity of lung cancer was respectively 52.65% and 89.33% by the combination of APC and DCC genes methylation. Comparing with the separate APC detection,sensitivity and specificity statistical differences were significant in joint meas-urement (P <0.01).Comparing with the separate DCC detection,sensitivity statistical differences were significant,but spe-cificity statistical differences was not obvious (P >0.05).There was no correlation between methylation test results and pa-tient gender,age,pathological type,pathological grade,TNM stage and so on (P >0.05).Conclusion APC and DCC gene methylation were closely related to the development of non-small cell lung cancer.They can be used as an early diagnostic marker of lung cancer.
