Oligodeoxynucleotide Analogues of Circulating DNA Inhibit dsRNA-Induced Immune Response at the Early Stages of Signal Transduction Cascade in a Cell Type-Dependent Manner.

ABSTRACT

Oligodeoxynucleotide (ODN) analogues of cell-surface-bound circulating DNA inhibit the dsRNA-induced production of pro-inflammatory interleukin 6, interferon beta and antibacterial peptide beta-defensin 2 not only in human gingival fibroblasts, but also in human primary endothelial and transformed cells (Hela and A431). ODN analogues do not effect dendritic cells activation by poly(IC). The data obtained indicate that the early stages of the signal transduction cascade are violated by ODN analogues and the effects depend on the cell type.