Analysis of the status of DACH1 gene promoter methylation in endometrial carcinoma and its clinical significance
10.3760/cma.j.issn.0529-567x.2012.04.006
- VernacularTitle:子宫内膜癌组织中DACH1基因启动子的甲基化状态及其临床意义
- Author:
Xinchao DENG
;
Shaoru LI
;
Qing ZHANG
;
Chengjun ZHOU
;
Qifeng YANG
;
Jie JIANG
;
Beihua KONG
- Publication Type:Journal Article
- Keywords:
Endometrial neoplasms;
Eye proteins;
Transcription factors;
Methylation;
Promoter regions (genetics)
- From:
Chinese Journal of Obstetrics and Gynecology
2012;47(4):263-267
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo analyze the status of DACH1 gene promoter methylation and explore its association with the expression of DACH1 gene promoter methylation and clinical significance of endometrium carcinoma(EC).Methods From February 2004 to August 2008,a total of 80 EC tissue samples with comprehensive surgical pathology staging were collected and used for this study.Twenty normal endometrium tissues in 2008 were abtained from the fractional curettage because of dysfunctional uterine bleeding as control.All samples were confirmed pathologically.Methylation specific PCR (MSP) was performed to detect the promoter methylation of DACH1 gene,and analyze its influence on the expression of DACH1 and the relationship between DACH1 promoter methylation and clinicopathological factors in EC.DACH1 protein expression was detected by western blot.Chi-square test and Pearson test were used for statistical analysis.ResultsThe rate of promoter methylation of DACH1 gene in the EC tissues was significantly higher than that in the normal endometrium issues (30％ vs.5％,P ＜ 0.05).There was an association between the expression of DACH1 and DACH1 gene promoter methylation ( r =- 0.30,P ＜ 0.01 ).There was statistical difference between the methylation of DACH1 and the pathological grade ( P ＜ 0.05 ) or histological type ( P ＜0.05).But DACH1 gene methylation was not related with the age,stage,myometrial invasion depth and lymphnode metastasis (P ＞ 0.05 ).Conclusions DACH1gene promoter methylaion could lead to a decrease or absence in the DACH1 expression in EC.The promoter methylation of DACH1 gene may induce the inhibition of DACH1 expression,which might be one of the mechanisms of DACH1 gene inactivation in human EC.
