Role of DC-SIGN in the activation of dendritic cells by HPV-16 L1 virus-like particle vaccine

Eur J Immunol. 2006 Feb;36(2):437-45. doi: 10.1002/eji.200535068.

Abstract

Dendritic cell-specific intercellular adhesion molecule-grabbing non-integrin (DC-SIGN), a specific C-type lectin expressed on DC, binds and transmits different pathogens to susceptible cells. In the present study, we examined the role of DC-SIGN in the capture of human papillomavirus (HPV) pseudovirions and activation of DC. We demonstrate that HPV virus-like particles (VLP) bind to DC-SIGN expressed on transfected Raji cells and that antibodies against DC-SIGN block this interaction. DC take up VLP, which activate expression of costimulatory markers and cytokines/chemokines. Although our results indicate that DC-SIGN is not the major receptor for VLP in DC, this interaction contributes to the activation of DC surface antigens (HLA class I) and of various cytokines/chemokines, particularly TNF-alpha, IL-6, and RANTES. Induction of these markers in DC by VLP was significantly abrogated when binding to DC-SIGN was blocked by anti-DC-SIGN antibodies. These results suggest that DC-SIGN has a functional role in DC activation induced by HPV-16 L1-VLP, and thus highlight new aspects of DC interactions with HPV VLP.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Antibodies, Monoclonal / immunology
  • Antibodies, Monoclonal / pharmacology
  • Antigen Presentation / drug effects
  • Antigen Presentation / immunology*
  • Cell Adhesion Molecules / genetics
  • Cell Adhesion Molecules / immunology*
  • Cytokines / immunology
  • Dendritic Cells / immunology*
  • Human papillomavirus 16 / immunology*
  • Humans
  • Lectins, C-Type / genetics
  • Lectins, C-Type / immunology*
  • Papillomavirus Vaccines*
  • Receptors, Cell Surface / genetics
  • Receptors, Cell Surface / immunology*
  • Transfection
  • Viral Vaccines / immunology*
  • Virion / immunology*

Substances

  • Antibodies, Monoclonal
  • Cell Adhesion Molecules
  • Cytokines
  • DC-specific ICAM-3 grabbing nonintegrin
  • Lectins, C-Type
  • Papillomavirus Vaccines
  • Receptors, Cell Surface
  • Viral Vaccines