Comparison of DNA methylomes of human monocyte-derived dendritic cells (DCs) and myeloid-derived suppressor cells (MDSCs) generated in co-culture with ovarian carcinoma cell line (OVCAR8) during 6 days

The methylation profiles of bisulfite-modified DNA of human CD14+ monocytes-derived immature dendritic cells (GM-CSF/IL-4) were compared with myeloid-derived suppressor cells (GM-CSF/IL-4 in co-culture with ovarian carcinoma cell line (OVCAR8)) using the Infinium HumanMethylation450 BeadChips (Illumina, Inc., San Diego, CA). This platform allows the interrogation of >485,000 methylation sites per sample at single-nucleotide resolution, and comprises an average of 17 CpG sites per gene in the 99% of RefSeq genes. 96% of CpG islands are covered, with additional coverage in CpG island shores and the regions flanking them. The samples were hybridized in the array following the manufacturer’s instructions. Total DNA isolated by standard procedures from three sets of samples of derived immature dendritic cells (DCs) and myeloid-derived suppressor cells (MDSCs).