αVβ3-integrin relocalizes nectin1 and routes herpes simplex virus to lipid rafts

J Virol. 2012 Mar;86(5):2850-5. doi: 10.1128/JVI.06689-11. Epub 2011 Dec 14.

Abstract

Herpes simplex virus (HSV) enters cells by fusion at plasma membranes or endosomes. Cellular factors route the virus to different pathways. αVβ3-integrin directs HSV to a lipid raft and acidic endosome pathway. We report that infection mediated by nectin1 plus αVβ3-integrin exhibits the same characteristics as entry mediated by raft-located forms of nectin. αVβ3-integrin relocalizes nectin1 to lipid rafts, independently of virus. Thus, HSV routing to the lipid raft-dependent pathway is consequent to the integrin-induced relocalization of nectin1. Inhibition by the Na+/H+ exchanger 5-(N-ethyl-N-isopropyl)amirolide suggests that αVβ3-integrin overexpression favors HSV macropinocytic uptake in some cells but not in others.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Adhesion Molecules / genetics
  • Cell Adhesion Molecules / metabolism*
  • Cell Line
  • Herpes Simplex / genetics
  • Herpes Simplex / metabolism*
  • Herpes Simplex / virology
  • Herpesvirus 1, Human / genetics
  • Herpesvirus 1, Human / physiology*
  • Humans
  • Integrin alphaVbeta3 / genetics
  • Integrin alphaVbeta3 / metabolism*
  • Membrane Microdomains / metabolism*
  • Membrane Microdomains / virology
  • Nectins
  • Protein Transport
  • Virus Internalization

Substances

  • Cell Adhesion Molecules
  • Integrin alphaVbeta3
  • NECTIN1 protein, human
  • Nectins