COMPLEXED POLYPEPTIDE AND ADJUVANT FOR IMPROVED VACCINES

摘要

Attachment of the strongly immunogenic polypeptide to a more weakly immunogenic polypeptide can precipitate and focus a CpG adjuvant to increase in vivo priming of a cytotoxic T-lymphocyte (CTL) response, and thus increase the immunogenicity of the more weakly immunogenic polypeptide. Accordingly, compositions that include a bipartite immunogenic polypeptide are provided herein. The bipartite polypeptide can include a CpG-­interacting amino acid sequence fused to a CTL-activating amino acid sequence that can be heterologous to the CpG-interacting amino acid sequence. Also provided are methods of identifying and using a CpG-interacting amino acid sequence and a bipartite immunogenic polypeptide.