Journal
VACCINES
Volume 10, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/vaccines10020300
Keywords
malaria vaccine; VC2; liver stage; EXP1; UIS3; TMP21; intramuscular; subcutaneous; HSV-1; viral vector
Categories
Funding
- Louisiana Board of Regents LIFT fund
- Louisiana Board of Regents Governor's Biotechnology Fund
- Tubitak [119Z409]
- NIH-NIAID [1R21AI111058-01A1]
- Scientific Research Projects (BAP) committee of Bezmialem Vakif University [12.2019/12]
- [NIHGM103424]
- [NIHGM110760]
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In this study, a attenuated herpes simplex virus type-1 (HSV-1)-vectored vaccine was constructed to express three liver-stage (LS) malaria parasite exported proteins. Immunization with this vaccine in mice induced sterile protection against Plasmodium yoelii infection, suggesting its potential as a practical malaria vaccine for humans.
Here, we present the construction of an attenuated herpes simplex virus type-1 (HSV-1)-vectored vaccine, expressing three liver-stage (LS) malaria parasite exported proteins (EXP1, UIS3 and TMP21) as fusion proteins with the VP26 viral capsid protein. Intramuscular and subcutaneous immunizations of mice with a pooled vaccine, composed of the three attenuated virus strains expressing each LS antigen, induced sterile protection against the intravenous challenge of Plasmodium yoelii 17X-NL salivary gland sporozoites. Our data suggest that this malaria vaccine may be effective in preventing malaria parasite infection using practical routes of immunization in humans.
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