Oligonucleotide-mediated gene repair at DNA level: the potential applications for gene therapy.
Mutations in gene sequence can cause many genetic disorders, and researchers have attempted to develop treatments or cures at the DNA level for these diseases. Several strategies including triple-helix-forming oligonucleotides (TFOs), chimeric RNA/DNA oligonucleotide (RDO), and short single-stranded oligodeoxynucleotide (ODN) have been used to correct the dysfunctional genes in situ in the chromosome. Experimental data from cells and animal models suggest that all these strategies can repair the mutations in situ at DNA level. More effective structures of oligonucleotide, efficient delivery systems, and gene correction efficiency should be improved. Development of these strategies holds great potentials for treatments of genetic defects and other disorders.
Liu
Chang-Mei
CM
National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100005, People's Republic of China. liudp@95777.com
Liu
De-Pei
DP
Liang
Chih-Chuan
CC
D000818:Animals; D002678:Chimera / Q000378:metabolism; D004247:DNA / Q000008:administration & dosage / Q000235:genetics; D004260:DNA Repair / Q000187:drug effects* / Q000235:genetics; D005544:Forecasting; D005818:Genetic Engineering / Q000379:methods; D015316:Genetic Therapy / Q000379:methods* / Q000639:trends; D006801:Humans; D016297:Mutagenesis, Site-Directed; D009841:Oligonucleotides / Q000737:chemistry / Q000494:pharmacology*; D012313:RNA / Q000008:administration & dosage / Q000235:genetics
D009841:Oligonucleotides; D012313:RNA; D004247:DNA