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标题：Synergistic malaria vaccine combinations identified by systematic antigen screening
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作者：Leyla Y. Bustamante ; Gareth T. Powell ; Yen-Chun Lin 等
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：2017
卷号：114
期号：45
页码：12045-12050
DOI：10.1073/pnas.1702944114
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：A highly effective vaccine would be a valuable weapon in the drive toward malaria elimination. No such vaccine currently exists, and only a handful of the hundreds of potential candidates in the parasite genome have been evaluated. In this study, we systematically evaluated 29 antigens likely to be involved in erythrocyte invasion, an essential developmental stage during which the malaria parasite is vulnerable to antibody-mediated inhibition. Testing antigens alone and in combination identified several strain-transcending targets that had synergistic combinatorial effects in vitro, while studies in an endemic population revealed that combinations of the same antigens were associated with protection from febrile malaria. Video microscopy established that the most effective combinations targeted multiple discrete stages of invasion, suggesting a mechanistic explanation for synergy. Overall, this study both identifies specific antigen combinations for high-priority clinical testing and establishes a generalizable approach that is more likely to produce effective vaccines.
关键词：malaria ; vaccine ; Plasmodium falciparum ; antigen combinations ; erythrocyte invasion