The major discovery this year are as follows. 1. Established that potent Th1 and antibody responses can be induced in mice or NHP following immunization with CSP protein and Poly IC or by targeting the protein to DEC-205 expressed on dendritic cells. The data show that Poly IC is an effective adjuvant for inducing protective immunity. Tewari, K., Flynn, B.J., Boscardin, S.B., Kastenmueller, K., Salazar, A.M., Anderson, C.A., Soundarapandian, V., Keler, T., Hoffman, S.L., Nussenzweig, M.C., Steinman, R.M. and Seder, R.A.: Poly(I:C) is an effective adjuvant for antibody and multi-functional CD4+ T cell responses to Plasmodium falciparum circumsporozoite protein (CSP) and aDEC-CSP in Non Human Primates. Vaccine (In Press) 2010. 2. Showed that radiation attenuated sporozoites administered iv into NHP induced potent CD4 and CD8+ T cell responses in blood and liver. Also developed an assay to measure the global malaria specific responses.

Project Start
Project End
Budget Start
Budget End
Support Year
1
Fiscal Year
2010
Total Cost
$686,983
Indirect Cost
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Jongo, Said A; Shekalaghe, Seif A; Church, L W Preston et al. (2018) Safety, Immunogenicity, and Protective Efficacy against Controlled Human Malaria Infection of Plasmodium falciparum Sporozoite Vaccine in Tanzanian Adults. Am J Trop Med Hyg 99:338-349
Kisalu, Neville K; Idris, Azza H; Weidle, Connor et al. (2018) A human monoclonal antibody prevents malaria infection by targeting a new site of vulnerability on the parasite. Nat Med 24:408-416
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Kastenmuller, Kathrin; Espinosa, Diego A; Trager, Lauren et al. (2013) Full-length Plasmodium falciparum circumsporozoite protein administered with long-chain poly(IýýC) or the Toll-like receptor 4 agonist glucopyranosyl lipid adjuvant-stable emulsion elicits potent antibody and CD4+ T cell immunity and protection in mice. Infect Immun 81:789-800
Epstein, J E; Tewari, K; Lyke, K E et al. (2011) Live attenuated malaria vaccine designed to protect through hepatic CD8ýýý T cell immunity. Science 334:475-80

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