The qRT-PCR results for the CC cell lines (HCT116 and Caco-2), the BC cell line (MCF-7), and the NB cell (MCF-10A) demonstrated that cells treated with 5-aza-CdR exhibited significantly higher mRNA expression levels of the MAGE-C1, MAGE-C2, and MAGE-C3 genes than the cells treated with DMSO. The gene discussed is MAGEC1; the disease is breast cancer.