Centrosomal pre-integration latency of HIV-1 in quiescent cells

Retrovirology. 2007 Sep 10:4:63. doi: 10.1186/1742-4690-4-63.

Abstract

Human immunodeficiency virus type 1 (HIV-1) efficiently replicates in dividing and non-dividing cells. However, HIV-1 infection is blocked at an early post-entry step in quiescent CD4+ T cells in vitro. The molecular basis of this restriction is still poorly understood. Here, we show that in quiescent cells, incoming HIV-1 sub-viral complexes concentrate and stably reside at the centrosome for several weeks. Upon cell activation, viral replication resumes leading to viral gene expression. Thus, HIV-1 can persist in quiescent cells as a stable, centrosome-associated, pre-integration intermediate.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • CD4-Positive T-Lymphocytes / virology
  • Cell Line
  • Cells, Cultured
  • Centrosome / virology*
  • HIV-1 / genetics
  • HIV-1 / physiology*
  • Humans
  • Virus Integration / physiology
  • Virus Latency / physiology*
  • Virus Replication / physiology*