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PubMed · 14557638

Human immunodeficiency virus type 1 escape from RNA interference.

Daniel Boden·Oliver Pusch·Frederick Lee·Lynne Tucker·Bharat Ramratnam
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Abstract

Sequence-specific degradation of mRNA by short interfering RNA (siRNA) allows the selective inhibition of viral proteins that are critical for human immunodeficiency virus type 1 (HIV-1) replication. The aim of this study was to characterize the potency and durability of virus-specific RNA interference (RNAi) in cell lines that stably express short hairpin RNA (shRNA) targeting the HIV-1 transactivator protein gene tat. We found that the antiviral activity of tat shRNA was abolished due to the emergence of viral quasispecies harboring a point mutation in the shRNA target region. Our results suggest that, in order for RNAi to durably suppress HIV-1 replication, it may be necessary to target highly conserved regions of the viral genome. Alternatively, similar to present antiviral drug therapy paradigms, DNA constructs expressing multiple siRNAs need to be developed that target different regions of the viral genome, thereby reducing the probability of generating escape mutants.

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Cell LineGene Products, tatHIV-1HumansMutationRNA InterferenceRNA, CatalyticRNA, MessengerRNA, Small InterferingRNA, ViralTransfectiontat Gene Products, Human Immunodeficiency VirusJournal ArticleResearch Support, Non-U.S. Gov'tResearch Support, U.S. Gov't, P.H.S.

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Daniel Boden, Oliver Pusch, Frederick Lee, Lynne Tucker, Bharat Ramratnam. 2003. Human immunodeficiency virus type 1 escape from RNA interference.. https://doi.org/10.1128/jvi.77.21.11531-11535.2003

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