Evaluation of the immunogenicity of replication-competent V-knocked-out and replication-defective F-deleted Sendai virus vector-based vaccines in macaques

Vaccine. 2008 Dec 9;26(52):6839-43. doi: 10.1016/j.vaccine.2008.09.074. Epub 2008 Oct 16.

Abstract

Viral vectors are promising vaccine tools for eliciting antigen-specific T-cell responses. We previously showed the potential of recombinant Sendai virus (SeV) vectors to induce virus-specific T-cell responses in macaque AIDS models. Here, we have evaluated the immunogenicity of replication-competent V-knocked-out and replication-defective F-deleted SeV vectors in macaques. Intranasal replication-competent and replication-defective SeV immunizations both elicited robust systemic antigen-specific T-cell responses, whereas the responses induced by the former were more durable than those by the latter. However, even the latter-induced T-cell responses remained detectable in a local, retropharyngeal lymph node two months after the immunization. These findings are useful for establishment of a vaccine protocol using SeV vectors.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Administration, Intranasal
  • Animals
  • Gene Products, gag / immunology
  • Genetic Vectors / genetics*
  • Genetic Vectors / immunology*
  • Immunity, Cellular / immunology
  • Lymph Nodes / cytology
  • Lymph Nodes / immunology
  • Macaca fascicularis
  • Macaca mulatta
  • Nasal Mucosa / cytology
  • Nasal Mucosa / immunology
  • Organisms, Genetically Modified / genetics
  • Organisms, Genetically Modified / immunology
  • Sendai virus / genetics*
  • Sendai virus / immunology*
  • T-Lymphocytes / immunology
  • Vaccines, Attenuated / genetics*
  • Vaccines, Attenuated / immunology*
  • Vaccines, Synthetic / genetics*
  • Vaccines, Synthetic / immunology*
  • Virus Replication / genetics*
  • Virus Replication / immunology*

Substances

  • Gene Products, gag
  • Vaccines, Attenuated
  • Vaccines, Synthetic