Decoy Oligodeoxynucleotides As Novel Cardiovascular Drugs for Cardiovascular Disease
Gene therapy is emerging as a potential strategy in the treatment of cardiovascular disease such as restenosis after angioplasty, vascular bypass graft occlusion, and transplant coronary vasculopathy, for which no known effective therapy exists. One strategy for combatting disease processes is to target the transcriptional process. Application of DNA technology such as antisense strategy to regulate the transcription of disease-related genes in vivo has important therapeutic potential. Recently, transfection of cis-element double-stranded oligodeoxynucleotides (= decoy) as a powerful tool in a new class of antigene strategies for gene therapy was reported. Transfection of double-stranded oligodeoxynucleotides corresponding to cis sequence will result in the attenuation of authentic cis-trans interaction, leading to the removal of trans-factors from the endogenous cis-elements with subsequent modulation of gene expression. This decoy strategy is not only a novel strategy for gene therapy as an antigene strategy, but also a powerful tool for the study of endogenous gene regulation in vivo as well as in vitro. In this review, we focus on the future potential of decoy oligodeoxynucleotide-based gene therapy in the treatment of cardiovascular disease.
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