TLR-2, TLR-9 and IL-8 gene expression in THP-1 cells, a monocyte/macrophage cell line treated with 5-Aza-2-deoxycytidine, a hypomethylating agent. Treatment with 5-Aza resulted in significant increases in expression of both TLRs, as well as IL-8, suggesting TLR-2 and TLR-9 are regulated by DNA methylation. *** P < 0.001 as compared to control.