Hypermethylated genes are emerging as some of the most promising, practical and powerful biomarkers for breast cancer detection and perhaps even of risk assessment. We have assembled a panel of methylated gene detection markers and tested them by Quantitative Multiplex Methylation-Specific PCR (QM-MSP) in breast cancer. Here we two pilot studies: 1) detection of cancer in DNA from spontaneous n...

BACKGROUND Colorectal cancer (CRC) is the second most common cancer in the Kingdom of Saudi Arabia with ever increasing incidence rates. DNA methylation is a common event in CRC where it is now considered an important phenomenon in CRC carcinogenesis and useful for the classification and prognosis of CRC. METHODS To gain insight into the molecular mechanisms underpinning CRC in Saudi Arabian ...

We examined the relationship between aberrant DNA hypermethylation and key histone code components at a hypermethylated, silenced tumor suppressor gene promoter in human cancer. In lower eukaryotes, methylated H3-lysine 9 (methyl-H3-K9) determines DNA methylation and correlates with repressed gene transcription. Here we show that a zone of deacetylated histone H3 plus methyl-H3-K9 surrounds a h...

Although DNA hypermethylation within promoter CpG islands is highly correlated with tumorigenesis, it has not been established whether DNA hypermethylation within a specific tumor suppressor gene (TSG) is sufficient to fully transform a somatic stem cell. In this study, we addressed this question using a novel targeted DNA methylation technique to methylate the promoters of HIC1 and RassF1A, tw...

Abstract Background An important mechanism that promoter methylation-mediated gene silencing for inactivation is identified in human tumorigenesis. Methylated genes have been found breast cancer (BC) and beneficial biomarkers early diagnosis. Prognostic assessment of remain little known. Zinc finger protein 132 (ZNF132) downregulated by methylation prostate esophageal squamous cell carcinoma. H...

Homeobox A11 (HOXA11) is one of the hypermethylated genes in breast cancer and its function in breast tumorigenesis remains elusive. In this study, we analyzed the methylation status of HOXA11 in 264 paired breast cancer and normal tissue as well as in matched serum samples by MethyLight assay. Further, the function of HOXA11 in breast tumorigenesis was analyzed by cell proliferation and migrat...

Cervical cancer has become a most lethal and extensive gynecological malignancy, mainly because of the complete absence symptoms in early stage disease lack diagnostic markers. Several studies have found that deoxyribonucleic acid methylation plays an important role development cervical without altering sequence genomic acid. Zinc finger protein 582 is on chromosome 19 contains Kruppel-associat...

Promoter CpG island hypermethylation has become recognized as an important mechanism for inactivating tumor suppressor genes or tumor-related genes in human cancers of various tissues. Gene inactivation in association with promoter CpG island hypermethylation has been reported to be four times more frequent than genetic changes in human colorectal cancers. Hepatocellular carcinoma is also one o...

Phosphatidylethanolamine N-methyltransferase (PEMT) plays a critical role in breast cancer progression. However, the epigenetic mechanism regulating PEMT transcription remains largely unknown. Here, we show that the first promoter-specific transcript 1 is the major PEMT mRNA species, and methylation of the -132 site is a key regulatory element for the PEMT gene in BRCA1-mutated breast cancer. M...