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Related Concept Videos

Inhibitors of Virion Maturation and Assembly01:19

Inhibitors 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...
Retrovirus Life Cycles01:10

Retrovirus 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...
Inhibitors Of Virion Release01:25

Inhibitors 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...
Inhibitors of Viral Protein Synthesis01:30

Inhibitors 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...
Immune Response Against Viral Pathogens01:29

Immune Response Against Viral Pathogens

The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
Eukaryotic Transcription Inhibitors01:52

Eukaryotic Transcription Inhibitors

Certain biochemical processes, such as embryonic development and cell growth regulation, depend on the repression of specific genes. DNA binding proteins known as eukaryotic transcription inhibitors regulate the repression of gene expression in eukaryotes. The presence of these inhibitors at the required location and time in the cell is triggered by the presence of hormones and additional signals from other cells.
Eukaryotic transcription inhibitors usually contain two distinct domains, a DNA...

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Related Experiment Video

Updated: Jun 3, 2026

In Vitro Assay to Evaluate the Impact of Immunoregulatory Pathways on HIV-specific CD4 T Cell Effector Function
09:26

In Vitro Assay to Evaluate the Impact of Immunoregulatory Pathways on HIV-specific CD4 T Cell Effector Function

Published on: October 15, 2013

Inhibition of HIV Infection by Lectin Binding to CD4.

J Favero1, V Lafont

  • 1Microbiologie et Pathologie Cellulaire Infectieuse, Institut National de la Sante et de la Recherche Medicale, Universite de Montpellier II, Montpellier, France.

Methods in Molecular Medicine
|March 5, 2011
PubMed
Summary

Researchers are seeking molecules to block Human Immunodeficiency Virus (HIV) infection. Targeting the initial binding of the virus

Area of Science:

  • Virology
  • Immunology
  • Drug Discovery

Background:

  • The global progression of Acquired Immunodeficiency Syndrome (AIDS) necessitates novel therapeutic strategies.
  • Human Immunodeficiency Virus (HIV) infects T-cells, a critical step involving viral envelope glycoprotein gp120 binding to host cell CD4 antigen.

Purpose of the Study:

  • To identify molecules capable of inhibiting the initial binding event between HIV's gp120 and the host cell's CD4 receptor.
  • To explore therapeutic strategies targeting this crucial viral-host interaction to control HIV disease progression.

Main Methods:

  • Focus on identifying molecules that can impair the HIV infection process.
  • Investigating the viral replication cycle for potential intervention points.

More Related Videos

Preparation and Use of HIV-1 Infected Primary CD4+ T-Cells as Target Cells in Natural Killer Cell Cytotoxic Assays
12:07

Preparation and Use of HIV-1 Infected Primary CD4+ T-Cells as Target Cells in Natural Killer Cell Cytotoxic Assays

Published on: March 14, 2011

Development of Cell-type specific anti-HIV gp120 aptamers for siRNA delivery
13:47

Development of Cell-type specific anti-HIV gp120 aptamers for siRNA delivery

Published on: June 23, 2011

Related Experiment Videos

Last Updated: Jun 3, 2026

In Vitro Assay to Evaluate the Impact of Immunoregulatory Pathways on HIV-specific CD4 T Cell Effector Function
09:26

In Vitro Assay to Evaluate the Impact of Immunoregulatory Pathways on HIV-specific CD4 T Cell Effector Function

Published on: October 15, 2013

Preparation and Use of HIV-1 Infected Primary CD4+ T-Cells as Target Cells in Natural Killer Cell Cytotoxic Assays
12:07

Preparation and Use of HIV-1 Infected Primary CD4+ T-Cells as Target Cells in Natural Killer Cell Cytotoxic Assays

Published on: March 14, 2011

Development of Cell-type specific anti-HIV gp120 aptamers for siRNA delivery
13:47

Development of Cell-type specific anti-HIV gp120 aptamers for siRNA delivery

Published on: June 23, 2011

Main Results:

  • The binding of HIV's gp120 to CD4 on T-cells is a primary target for therapeutic intervention.
  • Research efforts are concentrated on blocking this specific molecular interaction.

Conclusions:

  • Inhibiting the gp120-CD4 interaction is a key strategy in developing treatments for HIV/AIDS.
  • Further research into molecules that perturb this binding is crucial for controlling viral infection.