作者: MC Kapulu , DF Da , K Miura , Y Li , AM Blagborough
DOI: 10.1038/SREP11193
关键词:
摘要: Malaria transmission-blocking vaccines (TBVs) target the development of Plasmodium parasites within mosquito, with aim preventing malaria transmission from one infected individual to another. Different vaccine platforms, mainly protein-in-adjuvant formulations delivering leading candidate antigens, have been developed independently and reported varied activities (TBA). Here, recombinant chimpanzee adenovirus 63, ChAd63, modified vaccinia virus Ankara, MVA, expressing AgAPN1, Pfs230-C, Pfs25, Pfs48/45 were generated. Antibody responses primed individually against all antigens by ChAd63 immunization in BALB/c mice boosted administration MVA same antigen. These antibodies exhibited a hierarchy inhibitory activity NF54 laboratory strain P. falciparum Anopheles stephensi mosquitoes using standard membrane feeding assay (SMFA), anti-Pfs230-C anti-Pfs25 giving complete blockade. The observed rank order inhibition was replicated African field isolates A. gambiae direct assays (DMFA). TBA achieved IgG concentration dependent. This study provides first head-to-head comparative analysis two different parasite sources vector species, can be used guide selection TBVs for future clinical viral-vectored delivery platform.