Last Updated: 07/05/2026
Malaria vaccine development based on multifunctional hybrid vaccine platform
Objectives
This project aims to develop multifunctional malaria vaccines using baculovirus and adenovirus vectors that express Plasmodium circumsporozoite protein.
Mitsuhiro Iyori
Shinya Fukumoto
Ryohei Ogawa
Takahiko Tamura
Hiroyuki Matsuoka
This research project has generated baculovirus- and adenovirus-based malaria vaccines expressing Plasmodium circumsporozoite protein (PfCSP) or PfCSP-Pfs25 fusino protein. Immunization of mice with these viral-vectored vaccines induced high anti-PfCSP and Pfs25 antibody titers and cellular immune responses. These results clearly demonstrated that the vaccines possesses multifunctional effects on induction of both humoral and cellular immune responses. This study successfully achieved sterile protective efficacy of the vaccines against sporozoite challenge. Moreover, heterologous prime-boost immunization regime using baculovirus- and adenovirus-PfCSP-Pfs25 elicited 99% transmission blocking activity. The present study shows great potential of these vaccines as next-generation malaria vaccines.
Apr 2015 — Mar 2018
$155,419


