Related Experiment Video
Updated: Jul 3, 2026
10:29
Quantitative Structure-Activity Relationship, Activity Prediction, and Molecular Dynamics of Non-nucleotide Reverse Transcriptase Inhibitors
Published on: May 9, 2025
Heterocyclic compounds that inhibit Rev-RRE function and human immunodeficiency virus type 1 replication
Deidra Shuck-Lee1, Fei Fei Chen, Ryan Willard
1Department of Microbiology, Myles H Thaler Center for AIDS and Human Retrovirus Research, University of Virginia, Charlottesville, Virginia 22908, USA.
Antimicrobial Agents and Chemotherapy
|July 16, 2008
Summary
Researchers screened 40,000 compounds to find HIV postintegration inhibitors. Two compounds effectively inhibited human immunodeficiency virus (HIV) replication by targeting Rev function, showing promise as new therapies.
Area of Science:
- Virology
- Drug Discovery
- Molecular Biology
Background:
- The human immunodeficiency virus (HIV) life cycle involves multiple stages, including postintegration.
- Identifying novel inhibitors targeting specific HIV replication steps is crucial for developing new therapies.
Purpose of the Study:
- To screen a large compound library for inhibitors of the postintegration stage of HIV replication.
- To identify and characterize compounds that specifically inhibit HIV Rev function.
Main Methods:
- A cell-based screening assay utilizing a Rev-dependent HIV gag and pol gene expression system.
- High-throughput screening of 40,000 compounds, followed by selection of 192 active compounds at 10 μM.
- In vitro and cell-based assays to determine the mechanism of action, focusing on Rev function and Rev-RRE binding.
Main Results:
- Screening identified 192 compounds inhibiting HIV postintegration, with 2 compounds showing significant promise.
- These two compounds were found to inhibit HIV Rev function without interfering with Rev-RRE binding in vitro.
- Both compounds demonstrated efficacy against laboratory-adapted (NL4-3) and primary (93BR021) HIV isolates.
Conclusions:
- Two novel compounds identified as inhibitors of HIV Rev function represent promising therapeutic leads.
- Targeting HIV Rev function offers a viable strategy for developing new anti-HIV drugs.
- These compounds warrant further investigation as potential candidates for HIV replication inhibition.
Related Concept Videos
01:19Inhibitors of Virion Maturation and Assembly
As part of their replication cycle, certain viruses synthesize long precursor proteins called polyproteins within infected host cells. In human immunodeficiency virus (HIV), two major polyproteins are produced: Gag and Gag-Pol. The Gag polyprotein supplies the structural components of the virus, while Gag-Pol includes essential viral enzymes such as reverse transcriptase, integrase, and protease. After synthesis, these polyproteins move to the host cell membrane, where they assemble into an...
01:22Antiviral Nucleoside Inhibitors
Antiviral Nucleoside InhibitorsAntiviral nucleoside inhibitors are structural analogs of natural nucleosides that interfere with viral DNA or RNA synthesis. These compounds selectively target viral polymerases due to their resemblance to host nucleosides, thereby disrupting viral genome replication.Mechanism of Acyclovir ActionAcyclovir is a guanosine analog with a three-carbon acyclic side chain. It selectively targets herpes simplex virus type 1 (HSV-1), herpes simplex virus type 2 (HSV-2),...
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...
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...
01:25Inhibitors Of Virion Release
Viral replication and dissemination rely on efficient mechanisms for host cell entry, genome replication, assembly, and release. Influenza viruses, such as types A and B, are negative-sense single-stranded RNA viruses with a segmented genome, that depend on two critical surface glycoproteins to carry out these processes: hemagglutinin (HA) and neuraminidase (NA). HA initiates infection by binding to sialic acid residues on the surface of host epithelial cells, facilitating receptor-mediated...
02:33Retroviruses
Retroviruses and retrotransposons both insert copies of their genetic elements into the genome of the host cell. Thus, the viral genes are passed on when the host genome is replicated or translated. A typical retroviral DNA sequence contains 3-4 genes that encode the different proteins required for its structural assembly and function as a molecular parasite. This DNA is transcribed into a single mRNA, which is very similar in structure to conventional mRNAs, i.e., it is capped at the 5’...