Varicella-zoster virus expressing HSV-2 glycoproteins B and D induces protection against HSV-2 challenge

Vaccine. 2004 Jun 30;22(20):2558-65. doi: 10.1016/j.vaccine.2003.12.010.

Abstract

A recombinant Oka (ROka) varicella-zoster virus (VZV) vaccine was constructed that expresses herpes simplex virus type 2 (HSV-2) glycoproteins B (gB) and D (gD). Guinea pigs received one of four inocula: (a). uninfected cells, (b). recombinant Oka VZV infected cells, (c). recombinant Oka VZV expressing HSV-2 gB/gD (ROka-gB2/gD2) infected cells, or (d) heat-inactivated ROka-gB2/gD2 infected cells. Only animals inoculated with ROka-gB2/gD2 developed high titers of neutralizing antibodies to HSV-2. Animals immunized with ROka-gB2/gD2 had reduced mortality after intravaginal challenge with HSV-2 compared with animals that received ROka or heat-inactivated ROka-gB2/gD2. Animals immunized with ROka-gB2/gD2 had reduced lesions scores for the first 2 weeks after challenge, and reduced shedding of HSV-2 on Days 5 and 7 after challenge, compared to the other two groups. These data show that recombinant VZV expressing HSV-2 antigens must be infectious to offer significant protection against challenge with HSV-2, and that ROka-gB2/gD2 has promise as a candidate HSV-2 vaccine.

MeSH terms

  • Animals
  • Cell Line
  • Guinea Pigs
  • Herpes Genitalis / prevention & control*
  • Herpesvirus 2, Human
  • Herpesvirus 3, Human / genetics*
  • Herpesvirus 3, Human / immunology
  • Herpesvirus 3, Human / metabolism
  • Humans
  • Immunization
  • Viral Envelope Proteins / immunology*
  • Viral Envelope Proteins / metabolism
  • Viral Vaccines / administration & dosage*

Substances

  • Viral Envelope Proteins
  • Viral Vaccines
  • glycoprotein B, herpes simplex virus type 2
  • glycoprotein D-herpes simplex virus type 2