Expression profiling after induction of demethylation in MCF-7 breast cancer cells identifies involvement of TNF-α mediated cancer pathways.

ABSTRACT: Epigenetic methylation change is a major process that occurs during cancer development. Even though many tumor-related genes have been identified based on their relationship between methylation and expression, few studies have been conducted to investigate the relevant biological pathways involved in these changes. To identify essential pathways likely to be affected by methylation in breast cancer, we examined a pool of genes in which expression was upregulated after induction of demethylation by 5-Aza-2'-deoxycytidine (Aza) in the MCF-7 breast cancer cell line. Genome-wide demethylation was confirmed by monitoring the demethylation of a previously known gene, SULT1A1. Overall, 210 and 213 genes were found to be upregulated and downregulated (fold change ≥ 2), respectively, in common in c

SUBMITTER: Kim JH 

PROVIDER: S-EPMC3887717 | biostudies-literature | 2012 Feb

REPOSITORIES: biostudies-literature