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Mangiferin, an anti-HIV-1 agent targeting protease and effective against resistant strains

Rui-Rui Wang1, Yue-Dong Gao, Chun-Hui Ma

  • 1Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences & Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China.

Molecules (Basel, Switzerland)
|May 26, 2011
PubMed

Insights

Mangiferin effectively inhibits HIV-1 replication and syncytium formation, even against resistant strains. This natural compound shows promise as a novel nonpeptidic protease inhibitor for HIV drug development.

Area of Science:

  • Virology
  • Medicinal Chemistry
  • Pharmacology

Background:

  • Human immunodeficiency virus type 1 (HIV-1) remains a global health challenge.
  • Drug resistance necessitates the development of novel antiviral agents.
  • Mangiferin, a natural compound, has demonstrated potential antiviral properties.

Purpose of the Study:

  • To evaluate the anti-HIV-1 activity of mangiferin.
  • To investigate the mechanism of action of mangiferin against HIV-1.
  • To explore the potential of mangiferin as a novel HIV-1 protease inhibitor.

Main Methods:

  • In vitro assays to assess anti-HIV-1 activity, including syncytium inhibition and cytotoxicity.
  • Mechanism of action studies, including protease inhibition assays.
  • Molecular modeling techniques, including docking and pharmacophore analysis.

Main Results:

  • Mangiferin inhibited HIV-1 replication and syncytium formation at non-cytotoxic concentrations (EC₅₀ = 16.90 μM, TI > 140).
  • Activity was observed against laboratory, clinical, and drug-resistant HIV-1 strains.
  • Mangiferin demonstrated potential HIV-1 protease inhibition, effective even against resistant strains.
  • Pharmacophore modeling and molecular docking elucidated mangiferin's binding mode to HIV-1 protease.

Conclusions:

  • Mangiferin exhibits significant anti-HIV-1 activity and a favorable therapeutic index.
  • Mangiferin represents a novel nonpeptidic HIV-1 protease inhibitor with a unique structure.
  • Its efficacy against resistant strains suggests a promising drug development strategy for combating HIV drug resistance.

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