Induction of humoral and cellular immune responses against hepatitis C virus by vaccination with replicon particles derived from Sindbis-like virus XJ-160

Induction of humoral and cellular immune responses against hepatitis C virus by vaccination with... A replication-defective, recombinant Sindbis virus vector was utilized in a novel immunization strategy to induce humoral and cellular responses against hepatitis C virus (HCV). The recombinant vector, pVaXJ-E1E2, expressing the gene for HCV glycoproteins E2 and E1, was constructed by inserting the E1E2 gene into the replicon pVaXJ, a DNA vector derived from Sindbis-like virus XJ-160. The defective replicon particles, XJ-E1E2, were produced by transfecting BHK-21 E+Capsid cells, the packaging cell lines for the vector from XJ-160 virus, with pVaXJ-E1E2. Both glycoproteins, E2 and E1, were stably expressed, as indicated by immunofluorescence assay (IFA) and Western blotting. Mice were vaccinated using a prime-boost strategy with XJ-E1E2 particles combined with Freund’s incomplete adjuvant via intramuscular injection at 0 and 2 weeks. HCV-specific IgG antibody levels and cellular immune responses were evaluated by IFA and IFN-γ ELISPOT, respectively. The results showed that the defective XJ-E1E2 particles in combination with Freund’s incomplete adjuvant induced effective humoral and cellular immune responses against HCV glycoprotein E1 or E2, suggesting that a defective Sindbis particle vaccine is capable of eliciting an effective immune response. These findings have important implications for the development of HCV vaccine candidates. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Induction of humoral and cellular immune responses against hepatitis C virus by vaccination with replicon particles derived from Sindbis-like virus XJ-160

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Publisher
Springer Vienna
Copyright
Copyright © 2013 by Springer-Verlag Wien
Subject
Biomedicine; Virology; Medical Microbiology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-012-1564-8
Publisher site
See Article on Publisher Site

References

  • Memory CD8 + T cells are required for protection from persistent hepatitis C virus infection
    Shoukry, NH; Grakoui, A; Houghton, M; Chien, DY; Ghrayeb, J; Reimann, KA; Walker, CM
  • Hepatitis C vaccines: inducing and challenging memory T cells
    Shiina, M; Rehermann, B
  • Adaptive immune responses to hepatitis C virus: from viral immunobiology to a vaccine
    Thimme, R; Neumann-Haefelin, C; Boettler, T; Blum, HE
  • Substitutions of 169Lys and 173Thr in nonstructural protein 1 influence the infectivity and pathogenicity of XJ-160 virus
    Zhu, WY; Yang, YL; Fu, SH; Wang, LH; Zhai, YG; Tang, Q; Liang, GD
  • Meta-analysis of hepatitis C virus vaccine efficacy in chimpanzees indicates an importance for structural proteins
    Dahari, H; Feinstone, SM; Major, ME

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