Promoter methylation of Wilms' tumor gene on the X- chromosome in gastric cancer.
- Author:
Xia LIU
1
;
Qiming WANG
;
Huilin NIU
;
Xuexi YANG
;
Jingzhe SUN
;
Qingling ZHANG
;
Yanqing DING
Author Information
- Publication Type:Journal Article
- MeSH: Cell Line, Tumor; Chromosomes, Human, X; DNA Methylation; Genes, Wilms Tumor; Humans; Promoter Regions, Genetic; Stomach Neoplasms; genetics; metabolism
- From: Journal of Southern Medical University 2013;33(3):318-321
- CountryChina
- Language:English
-
Abstract:
OBJECTIVETo investigate the changes in methylation levels of the promoters of the tumor suppressor gene Wilms' tumor gene on the X-chromosome (WTX) and its possible role in gastric cancer.
METHODSWTX promoter methylation levels were detected in 20 pairs of specimens of gastric cancer and matched normal tissues and in 3 gastric cancer cell lines (MGC803, SCG7901, and BGC823) using the Sequenom MassARRAY quantitative analysis system. The gastric cancer cell line BGC823 was treated with 5-aza-2'-deoxycytidine (5-aza-dC) for demethylation and the changes in the level of WTX promoter methylation were investigated.
RESULTSWTX promoter methylation levels were very low and showed no significant differences among normal gastric tissues, gastric cancer tissues and the 3 gastric cancer cell lines. In BGC823 cells, treatment with 5-aza-dC did not obviously affect the promoter methylation levels of WTX.
CONCLUSIONHigh methylation levels of WTX promoters are rare in gastric cancer.
