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The successful immune response against hepatitis C nonstructural protein 5A (NS5A) requires heterologous DNA/protein immunization

  • Olga V. Masalova (Corresponding Author)
  • , Ekaterina I. Lesnova
  • , Alexei V. Pichugin
  • , Tatiana M. Melnikova
  • , Vadim V. Grabovetsky
  • , Natalia V. Petrakova
  • , Olga A. Smirnova
  • , Alexander V. Ivanov
  • , Alexei D. Zaberezhny
  • , Ravshan I. Ataullakhanov
  • , Maria G. Isaguliants (Corresponding Author)
  • , Alla A. Kushch

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The aim of this study was to evaluate the immunogenicity of NS5A protein of human hepatitis C virus (HCV) when delivered as naked DNA (NS5A DNA), or recombinant protein (rNS5A). DBA/2J mice received NS5A DNA, rNS5A, or NS5A DNA/rNS5A in different prime-boost combinations with a peptidoglycan Immunomax®. The weakest response was induced after rNS5A prime and NS5A DNA boost; rNS5A alone induced an immune response with a strong Th2-component; and NS5A DNA alone, a relatively weak secretion of IL-2 and IFN-γ. The most efficient was co-injection of NS5A DNA and rNS5A, which induced a significant increase in CD4+ and CD8+ T-cell counts, anti-NS5A antibodies, specific T-cell proliferation, and proinflammatory cytokine production in vitro against a broad spectrum of NS5A epitopes. Administration of the mixture of adjuvanted DNA and protein immunogens can be selected as the best regimen for further preclinical HCV-vaccine trials.

Original languageEnglish
Pages (from-to)1987-1996
Number of pages10
JournalVaccine
Volume28
Issue number8
DOIs
Publication statusPublished - 23 Feb 2010
Externally publishedYes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords*

  • Adjuvant
  • DNA immunization
  • HCV vaccine
  • Hepatitis C virus
  • Heterologous prime-boost
  • Immunomax
  • Nonstructural protein 5A (NS5A)
  • Promiscuous T-cell epitopes

Field of Science*

  • 1.6 Biological sciences
  • 3.1 Basic medicine
  • 3.3 Health sciences

Publication Type*

  • 1.1. Scientific article indexed in Web of Science and/or Scopus database

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