Variable region 4 of SIV envelope correlates with rapid disease progression in morphine-exposed macaques infected with SIV/SHIV

Vanessa Rivera-Amill, Richard J. Noel, Suheydi Orsini, Griselle Tirado, José M. García, Shilpa Buch, Anil Kumar

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

We analyzed the association between the evolution of the V3-V5 regions of env and disease progression in our SIV/SHIV macaque model of morphine dependence and AIDS. Previous studies revealed two distinct disease patterns-fast progression and normal progression. To determine the effect of the two distinct patterns of disease in the evolution of SIV/17E-Fr envelope, we analyzed env sequences from three morphine-dependent macaques that developed accelerated AIDS and three morphine-dependent macaques that developed AIDS at a slower rate and compared them to control macaques. Morphine-dependent animals exhibited a higher percentage of diversity in both plasma and CSF compartments within V4 when compared to controls. Divergence from the inoculum was significantly greater in the morphine group as compared to controls in CSF but not in plasma. We also found a direct correlation in V4 evolution and rapid disease progression. These results indicate that morphine dependence plays a role in the pathogenesis of SIV/SHIV infection and env evolution.

Original languageEnglish (US)
Pages (from-to)373-383
Number of pages11
JournalVirology
Volume358
Issue number2
DOIs
StatePublished - Feb 20 2007

Keywords

  • Envelope evolution
  • Macaque
  • Morphine
  • SHIV
  • SIV
  • Variable region

ASJC Scopus subject areas

  • Virology

Fingerprint Dive into the research topics of 'Variable region 4 of SIV envelope correlates with rapid disease progression in morphine-exposed macaques infected with SIV/SHIV'. Together they form a unique fingerprint.

  • Cite this