期刊
PLOS PATHOGENS
卷 3, 期 5, 页码 647-658出版社
PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.ppat.0030072
关键词
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资金
- Medical Research Council [MC_U117532067, G0300145] Funding Source: Medline
- MRC [MC_U117532067, G0300145] Funding Source: UKRI
- Medical Research Council [MC_U117532067, G0300145] Funding Source: researchfish
The success of passive immunization suggests that antibody-based therapies will be effective at controlling malaria. We describe the development of fully human antibodies specific for Plasmodium falciparum by antibody repertoire cloning from phage display libraries generated from immune Gambian adults. Although these novel reagents bind with strong affinity to malaria parasites, it remains unclear if in vitro assays are predictive of functional immunity in humans, due to the lack of suitable animal models permissive for P. falciparum. A potentially useful solution described herein allows the antimalarial efficacy of human antibodies to be determined using rodent malaria parasites transgenic for P. falciparum antigens in mice also transgenic for human Fc-receptors. These human IgG1s cured animals of an otherwise lethal malaria infection, and protection was crucially dependent on human Fc gamma RI. This important finding documents the capacity of Fc gamma RI to mediate potent antimalaria immunity and supports the development of Fc gamma RI-directed therapy for human malaria.
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