Methylation profile of BRCA1, RASSF1A and ER in Vietnamese women with ovarian cancer.
DNA methylation is considered a promising biomarkers for diagnosis of cancer in general and of ovarian cancer in particular. In our study, we validated the accuracy of methylation specific polymerase chain reaction (MSP) to analyze the methylation pattern of BRCA1, RASSF1A and ER in 59 and 10 Vietnamese patients with epithelial ovarian cancer (EOC) and benign ovarian tumors, respectively. We found methylation of BRCA1, RASSF1A and ER in 11/59 (18.6%), 40/59 (67.8%) and 15/59 (25.4%) of EOC cases, while methylation of BRCA1 was only detected in 2/10 (20%) benign ovarian patients. Forty five out of the 59 EOCs (78%) demonstrated methylation at one or more genes. The methylation frequency of RASSF1A was significantly associated with EOC (p<0.0005). No significant association was observed between methylation status of these genes and the clinical and pathological parameters of tumors collected from Vietnamese women suffering from ovarian cancer.
Faculty of Biology, VNU University of Science, Hanoi, Vietnam E-mail : vothithuonglan@hus. edu.vn.
Lan Thi Thuong
LT
Vo
Ta Bich
TB
Thuan
Doan Minh
DM
Thu
Nguyen Quynh
NQ
Uyen
Ngo Thi
NT
Ha
Ta Van
TV
To
D019313:BRCA1 Protein / Q000235:genetics*; D014408:Biomarkers, Tumor / Q000235:genetics*; D000077216:Carcinoma, Ovarian Epithelial; D019175:DNA Methylation; D005260:Female; D006801:Humans; D008875:Middle Aged; D009367:Neoplasm Staging; D009375:Neoplasms, Glandular and Epithelial / Q000235:genetics* / Q000473:pathology; D010051:Ovarian Neoplasms / Q000235:genetics* / Q000473:pathology; D016133:Polymerase Chain Reaction; D011379:Prognosis; D011401:Promoter Regions, Genetic / Q000235:genetics*; D011960:Receptors, Estrogen / Q000235:genetics*; D025521:Tumor Suppressor Proteins / Q000235:genetics*; D014744:Vietnam
D019313:BRCA1 Protein; C492913:BRCA1 protein, human; D014408:Biomarkers, Tumor; C411762:RASSF1 protein, human; D011960:Receptors, Estrogen; D025521:Tumor Suppressor Proteins