| Autor: |
Adah, Steven A., Bayly, Suzanne F., Cramer, Hagen, Silverman, Robert H., Torrence, Paul F. |
| Zdroj: |
Current Medicinal Chemistry; August 2001, Vol. 8 Issue: 10 p1189-1212, 24p |
| Abstrakt: |
This review describes the application of a natural defense mechanism to develop effective agents for The post-transcriptional control of gene expression. 2-5A is a unique 2',5'-phosphodiester bond linked oligoadenylate, (pp)p5'A2'(p5'A)n , that is elaborated in virus-infected interferon-treated cells. The 2-5A System is an RNA degradation pathway that is an important mechanistic component of interferon's action against certain viruses. It may also play a role in the anticellular effects of interferon and in general RNA decay. A major player in the 2-5A-system is the latent and constitutive 2-5A-dependent ribonuclease (RNase L) which upon activation by 2-5A, degrades RNA. This RNase L enzyme can be recruited for antisense therapeutics by linking it to an appropriate oligonucleotide targeted to a chosen RNA. Syntheses of 2-5A, its analogues, 2-5A-antisense, and its modifications are detailed herein. Applications of 2-5A-antisense to particular targets such as HIV, PKR, chronic myelogenous leukemia, telomerase, and respiratory syncytical Virus is described. |
| Databáze: |
Supplemental Index |
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