McDonald, William F.;
Huleatt, James W.;
Foellmer, Harald G.;
Hewitt, Duane;
Desai, Priyanka;
Price, Albert;
Jacobs, Andrea;
Takahashi, Virginia N.;
Nakaar, Valerian;
Alexopoulou, Lena;
Fikrig, Erol;
Powell, T. J.
A West Nile Virus Recombinant Protein Vaccine That Coactivates Innate and Adaptive Immunity
Sie können Bookmarks mittels Listen verwalten, loggen Sie sich dafür bitte in Ihr SLUB Benutzerkonto ein.
Medientyp:
E-Artikel
Titel:
A West Nile Virus Recombinant Protein Vaccine That Coactivates Innate and Adaptive Immunity
Beteiligte:
McDonald, William F.;
Huleatt, James W.;
Foellmer, Harald G.;
Hewitt, Duane;
Desai, Priyanka;
Price, Albert;
Jacobs, Andrea;
Takahashi, Virginia N.;
Nakaar, Valerian;
Alexopoulou, Lena;
Fikrig, Erol;
Powell, T. J.
Erschienen:
University of Chicago Press, 2007
Erschienen in:
The Journal of Infectious Diseases, 195 (2007) 11, Seite 1607-1617
Beschreibung:
A chimeric protein West Nile virus (WNV) vaccine capable of delivering both innate and adaptive immune signals was designed by fusing a modified version of bacterial flagellin (STF2∆) to the EIII domain of the WNV envelope protein. This fusion protein stimulated interleukin-8 production in a Toll-like receptor (TLR)-5-dependent fashion, confirming appropriate in vitro TLR5 bioactivity, and also retained critical WNV-E-specific conformation-dependent neutralizing epitopes as measured by enzyme-linked immunosorbent assay. When administered without adjuvant to C3H/HeN mice, the fusion protein elicited a strong WNV-E-specific immunoglobulin G antibody response that neutralized viral infectivity and conferred protection against a lethal WNV challenge. This potent EIII-specific immune response requires a direct linkage of EIII to STF2∆, given that a simple mixture of the 2 components failed to induce an antibody response or to provide protection against virus challenge. The presence of a functional TLR5 gene in vivo is also required-TLR5-deficient mice elicited only a minimal antigen-specific response. These results confirm that vaccines designed to coordinately regulate the innate and adaptive immune responses can induce protective immune responses without the need for potentially toxic adjuvants. They also support the further development of an effective WNV vaccine and novel monovalent and multivalent vaccines for related flaviviruses.