DNA triple helix formation: A potential tool for genetic repair
Department of Pharmaceutical Sciences, Dr. Hari Singh Gour Vishwavidyalaya, Sagar-470 003, India
D V Kohli Department of Pharmaceutical Sciences, Dr. Hari Singh Gour Vishwavidyalaya, Sagar-470 003 India E-mail: [email protected]
DNA triple helices offer new perspectives towards oligonucleotide-directed gene regulation. Triple helix forming oligonucleotides, which bind to double-stranded DNA, are of special interest since they are targeted to the gene itself rather than to its mRNA product (as in the antisense strategy). However, the poor stability of some of these structures might limit their use under physiological conditions. Specific ligands can intercalate into DNA triple helices and stabilize them. This review summarizes recent advances in this field while also highlighting major obstacles that remain to be overcome, before the application of triplex technology to therapeutic gene repair can be achieved.