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HIV-1 entry and its inhibition.

T C Pierson1, R W Doms

  • 1Department of Microbiology, University of Pennsylvania, 301C Johnson Pavilion, 3610 Hamilton Walk, Philadelphia, PA 19104, USA. tpierson@mail.med.upenn.edu

Current Topics in Microbiology and Immunology
|August 23, 2003
PubMed
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This review details how Human Immunodeficiency Virus type 1 (HIV-1) enters cells using its envelope glycoproteins. Understanding this viral entry mechanism aids in developing new HIV-1 entry inhibitors for therapy.

Area of Science:

  • Virology
  • Molecular Biology
  • Immunology

Background:

  • HIV-1 entry into host cells is mediated by envelope (Env) glycoproteins.
  • This process involves the complex fusion of viral and cell membranes.
  • Previous research has provided insights into viral entry mechanisms.

Purpose of the Study:

  • To review the mechanism of HIV-1 entry into permissive cells.
  • To highlight the role of viral and cellular proteins in this process.
  • To emphasize targeting distinct steps of viral entry for novel therapeutic design.

Main Methods:

  • Review of existing scientific literature on HIV-1 entry.
  • Analysis of the molecular mechanisms of viral-cellular protein interactions.
  • Examination of strategies for inhibiting HIV-1 entry.

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Main Results:

  • HIV-1 entry is a dynamic process driven by Env glycoproteins.
  • Viral and cellular proteins play critical roles in mediating membrane fusion.
  • Several novel inhibitors targeting different entry steps are in clinical trials.

Conclusions:

  • Targeting specific steps of the HIV-1 entry pathway offers a promising therapeutic strategy.
  • Inhibiting receptor binding and blocking fusion-related conformational changes are key approaches.
  • Further research into viral entry mechanisms can lead to more effective HIV-1 therapies.