HIV entry inhibition by the envelope 2 glycoprotein of GB virus C

AIDS. 2007 Mar 12;21(5):645-7. doi: 10.1097/QAD.0b013e32803277c7.

Abstract

Epidemiological studies have revealed an association between GB virus C (GBV-C) long-term viraemia and ameliorated HIV disease progression. We have provided evidence that a single protein of GBV-C, the glycoprotein E2, interferes with early HIV replication steps of both X4- and R5-tropic HIV strains. Preincubation with anti-E2 antibody specifically abrogates the inhibitory effect. Results were confirmed by the in-vitro expression of GBV-C E1/E2 encoding RNA.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cells, Cultured
  • Dose-Response Relationship, Drug
  • GB virus C / physiology
  • HIV Infections / virology*
  • HIV-1 / physiology*
  • Humans
  • Recombinant Fusion Proteins / pharmacology
  • Transfection
  • Viral Envelope Proteins / genetics
  • Viral Envelope Proteins / pharmacology
  • Viral Envelope Proteins / physiology*
  • Virus Replication / drug effects
  • Virus Replication / physiology*

Substances

  • Recombinant Fusion Proteins
  • Viral Envelope Proteins
  • glycoprotein E2, GB virus C