Gag-dependent enrichment of HIV-1 RNA near the uropod membrane of polarized T cells

J Virol. 2013 Nov;87(21):11912-5. doi: 10.1128/JVI.01680-13. Epub 2013 Aug 21.

Abstract

The enrichment of HIV-1 macromolecules at the uropod of polarized T cells can significantly promote virus assembly and cell-mediated infection. Using live-cell fluorescence microscopy, we demonstrate that full-length HIV-1 RNA is enriched at the uropod membrane; furthermore, the presence of HIV-1 Gag containing a functional nucleocapsid domain is necessary for this HIV-1 RNA enrichment. The results from these studies provide novel insights into the mechanism of HIV-1 replication in polarized T cells.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, N.I.H., Intramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • CD4-Positive T-Lymphocytes / virology*
  • Cell Line
  • Cell Membrane / virology*
  • HIV-1 / physiology*
  • Humans
  • Macromolecular Substances / metabolism*
  • Microscopy, Fluorescence
  • RNA, Viral / metabolism*
  • Virus Assembly*
  • gag Gene Products, Human Immunodeficiency Virus / metabolism*

Substances

  • Macromolecular Substances
  • RNA, Viral
  • gag Gene Products, Human Immunodeficiency Virus