Specific inhibition of human immunodeficiency virus type 1 replication by antisense oligonucleotides: an in vitro model for treatment.

Journal Article (Journal Article)

We have developed a culture system, simulating in vivo conditions of human immunodeficiency virus type 1 (HIV-1) infection, to evaluate the long-term efficacy of antisense oligonucleotide treatment. Five oligonucleotide phosphorothioates (28-mers), complementary to different regions of HIV-1 RNA, blocked replication of the virus in a sequence-specific manner at 1 microM concentration. Variations in antiviral activity were seen among the different oligonucleotides, revealing an effect of target selection. Mismatched or random oligonucleotide phosphorothioates delayed, but did not completely inhibit, HIV-1 replication. In the case of inhibition by a splice-acceptor-site antisense oligodeoxynucleotide, a break-through phenomenon occurred after 25 days of treatment, suggesting the development of an "escape mutant." This result did not occur when the inhibitory oligodeoxynucleotides were complementary to the primary-sequence areas of the rev-responsive element and rev-1 genes. Sequential treatment of HIV-1-infected cells with a combination of different antisense oligonucleotides, each administered once, also prevented the development of escape mutants. Our results suggest that chemotherapy based on specifically targeted antisense-oligonucleotide phosphorothioates may be an effective method for reducing the viral burden in HIV-1-infected individuals at clinically achievable oligonucleotide concentrations.

Full Text

Duke Authors

Cited Authors

  • Lisziewicz, J; Sun, D; Klotman, M; Agrawal, S; Zamecnik, P; Gallo, R

Published Date

  • December 1, 1992

Published In

Volume / Issue

  • 89 / 23

Start / End Page

  • 11209 - 11213

PubMed ID

  • 1454800

Pubmed Central ID

  • PMC50519

International Standard Serial Number (ISSN)

  • 0027-8424

Digital Object Identifier (DOI)

  • 10.1073/pnas.89.23.11209


  • eng

Conference Location

  • United States