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11:10
Genotypic Inference of HIV-1 Tropism Using Population-based Sequencing of V3
Published on: December 28, 2010
HIV-1 receptors and cell tropism
1Center for AIDS Research, Program in Molecular Medicine, Department of Molecular Genetics and Microbiology, University of Massachusetts Medical School, Worcester, Massachusetts 01605, USA.
British Medical Bulletin
|November 21, 2001
Summary
Human immunodeficiency virus (HIV) uses cell surface receptors like CD4 and co-receptors (CCR5 or CXCR4) to enter cells. Understanding these interactions is key for developing new HIV therapies targeting viral entry.
Area of Science:
- Virology
- Immunology
- Cell Biology
Background:
- Human immunodeficiency virus (HIV) entry into host cells is a complex process.
- Viral entry requires sequential interaction with cell surface receptors, primarily CD4 and a co-receptor.
Purpose of the Study:
- To review how different cellular receptors influence HIV tropism and pathogenesis.
- To discuss the role of various receptors in HIV transmission and replication.
Main Methods:
- Literature review of scientific publications on HIV-receptor interactions.
- Analysis of studies detailing the mechanisms of viral entry and tropism.
- Synthesis of information on therapeutic strategies targeting HIV receptors.
Main Results:
- HIV-1 predominantly uses CCR5 as a co-receptor for transmission and replication.
- Viral variants can evolve to utilize CXCR4 or other co-receptors, altering tropism and pathogenicity.
- Other receptors like mannose binding protein and DC-SIGN can tether viruses or facilitate transport, indirectly aiding infection.
Conclusions:
- Cellular receptor interactions critically determine HIV tropism and disease progression.
- Targeting these receptor interactions offers promising avenues for novel anti-HIV therapeutics.
- Further research into the multifaceted roles of cellular receptors in HIV infection is warranted.
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