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Updated: Jul 28, 2026
11:10
Genotypic Inference of HIV-1 Tropism Using Population-based Sequencing of V3
Published on: December 27, 2010
HIV-1 coreceptors and their inhibitors
1Department of Microbiology, University of Pennsylvania, 301A Johnson Pavilion, Philadelphia, PA 19104, USA. nray@mail.med.upenn.edu
Current Topics in Microbiology and Immunology
|March 31, 2006
Summary
Chemokine receptors like CCR5 and CXCR4 are crucial for human immunodeficiency virus (HIV) entry. Inhibitors targeting these coreceptors offer promising antiretroviral therapies against HIV.
Area of Science:
- Virology
- Immunology
- Pharmacology
Background:
- Human immunodeficiency virus (HIV) entry into host cells relies on the viral Envelope glycoprotein (Env) interacting with CD4 receptors and coreceptors (CCR5 or CXCR4).
- Chemokine receptors were identified as essential coreceptors for HIV-1 Env-mediated fusion.
- Nonfunctional chemokine receptor alleles influence HIV-1 resistance and disease progression.
Purpose of the Study:
- To review the identification and role of chemokine receptors as coreceptors in HIV-1 entry.
- To discuss determinants of chemokine receptor usage and the impact of genetic variations on HIV-1 resistance.
- To explore the development and efficacy of CCR5- and CXCR4-based antiretroviral drugs.
Main Methods:
- Literature review of studies on HIV-1 entry mechanisms.
- Analysis of genetic determinants of chemokine receptor usage.
- Evaluation of clinical data on antiretroviral therapies targeting chemokine coreceptors.
Main Results:
- Chemokine receptors (CCR5, CXCR4) are key determinants of HIV-1 tropism and entry.
- Specific alleles of chemokine receptors confer resistance to HIV-1 infection.
- Development of CCR5 and CXCR4 antagonists represents a significant advancement in antiretroviral therapy.
Conclusions:
- Chemokine receptor antagonists are effective in blocking HIV-1 entry and are valuable therapeutic agents.
- Understanding coreceptor usage and resistance mechanisms is vital for optimizing HIV treatment strategies.
- Further research into coreceptor inhibitors and their clinical impact is warranted for combating HIV/AIDS.
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