Protective immune responses against systemic candidiasis mediated by phage-displayed specific epitope of Candida albicans heat shock protein 90 in C57BL/6J mice

Vaccine. 2006 Aug 28;24(35-36):6065-73. doi: 10.1016/j.vaccine.2006.05.022. Epub 2006 Jun 9.

Abstract

Specific epitope (DEPAGE) of Candida albicans heat shock protein 90 (SE-CA-HSP90) was successfully expressed on the surface of filamentous phage fd, fused to the major coat protein pVIII. Protective immune responses mediated by hybrid-phage expressing SE-CA-HSP90 in C57BL/6J mice were evaluated in this paper. The results showed that hybrid-phage particles induced the specific antibody response against SE-CA-HSP90, enhanced delayed-type hypersensitivity (DTH) response, natural killer (NK) cell activity and concanavalin A (ConA)-induced splenocyte proliferation. Furthermore, this study demonstrated that hybrid-phage-immunized mice had fewer colony forming unites (CFU) in the kidneys compared with wild-type phage-immunized mice and TE (1.0mM EDTA, 0.01M Tris-HCl, pH 8.0)-injected mice and showed statistically significant survival advantage over TE-injected group. In conclusion, the results suggest that the hybrid-phage displaying SE-CA-HSP90 may be considered as a potential candidate for producing vaccines against systemic candidiasis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antibody Specificity
  • Bacteriophage M13 / genetics
  • Bacteriophage M13 / isolation & purification
  • Bacteriophage M13 / metabolism*
  • Candida albicans / genetics
  • Candida albicans / immunology*
  • Candidiasis / immunology
  • Candidiasis / prevention & control*
  • Cell Proliferation
  • Concanavalin A
  • Epitopes, B-Lymphocyte / metabolism
  • HSP90 Heat-Shock Proteins / genetics
  • HSP90 Heat-Shock Proteins / immunology*
  • HSP90 Heat-Shock Proteins / metabolism
  • Hypersensitivity, Delayed*
  • Immunity, Cellular
  • Killer Cells, Natural / physiology
  • Mice
  • Mice, Inbred C57BL
  • Spleen / immunology

Substances

  • Epitopes, B-Lymphocyte
  • HSP90 Heat-Shock Proteins
  • Concanavalin A