Related Experiment Video
Updated: Jun 19, 2026
12:03
Evaluation of the Efficacy And Toxicity of RNAs Targeting HIV-1 Production for Use in Gene or Drug Therapy
Published on: September 5, 2016
Toward a durable anti-HIV gene therapy based on RNA interference
1Laboratory of Experimental Virology, Academic Medical Center, University of Amsterdam, the Netherlands. b.berkhout@amc.uva.nl
Annals of the New York Academy of Sciences
|October 3, 2009
Summary
RNA interference (RNAi) offers a gene therapy approach to inhibit HIV-1. Combinatorial RNAi strategies are necessary to overcome frequent viral mutations and prevent escape, ensuring durable gene silencing.
Area of Science:
- Molecular Biology
- Gene Regulation
- Virology
Background:
- RNA interference (RNAi) discovered in 1998, is a key gene control mechanism in mammals.
- RNAi-based gene silencing is progressing, with applications in clinical trials.
- Human Immunodeficiency Virus type 1 (HIV-1) establishes chronic infections requiring durable gene therapy.
Purpose of the Study:
- To discuss RNAi strategies for inhibiting the human immunodeficiency virus type 1 (HIV-1).
- To address the challenge of viral escape due to frequent HIV-1 mutations.
- To highlight the necessity of combinatorial RNAi approaches for effective HIV-1 gene silencing.
Main Methods:
- Review of existing RNAi mechanisms and their application to viral inhibition.
- Analysis of HIV-1 mutation rates and their impact on RNAi target sequences.
- Exploration of combinatorial RNAi strategies to prevent viral escape.
Main Results:
- Viruses like HIV-1 are challenging targets for RNAi due to rapid mutation.
- Mutation of RNAi target sequences allows for viral escape.
- Combinatorial RNAi is essential to prevent HIV-1 from escaping gene silencing.
Conclusions:
- RNAi holds promise as a gene therapy for HIV-1.
- Overcoming viral escape through mutation is critical for successful RNAi therapy.
- Combinatorial RNAi strategies are required for durable inhibition of HIV-1.
Related Concept Videos
02:15Experimental RNAi
RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
01:23RNA Interference
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
01:23RNA Interference
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
01:29Viruses with RNA Genomes
RNA viruses are categorized into positive-strand, negative-strand, or double-stranded groups based on their genomic structure and replication mechanisms. This classification dictates how they exploit host cellular machinery for protein synthesis and replication. Some RNA viruses also utilize reverse transcription as part of their life cycle, further diversifying their replication strategies.Positive-Strand RNA VirusesPositive-strand RNA viruses have genomes that function directly as messenger...
01:30Inhibitors of Viral Protein Synthesis
Protein synthesis is indispensable for viral replication, as viruses lack the cellular machinery required for this process and must hijack the host's translational apparatus. In response, host cells deploy a critical innate immune defense involving interferons, specialized cytokines that play a central role in inhibiting viral propagation.Upon viral detection, infected cells release interferons that bind to receptors on adjacent uninfected cells, activating the JAK-STAT signaling pathway and...
01:10Retrovirus Life Cycles
Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the retrovirus to...