Malaria vaccine candidate: design of a multivalent subunit α-helical coiled coil poly-epitope.

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Serval ID
serval:BIB_5B23A6FA2B46
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Malaria vaccine candidate: design of a multivalent subunit α-helical coiled coil poly-epitope.
Journal
Vaccine
Author(s)
Olugbile S., Villard V., Bertholet S., Jafarshad A., Kulangara C., Roussilhon C., Frank G., Agak G.W., Felger I., Nebie I., Konate K., Kajava A.V., Schuck P., Druilhe P., Spertini F., Corradin G.
ISSN
1873-2518 (Electronic)
ISSN-L
0264-410X
Publication state
Published
Issued date
2011
Volume
29
Number
40
Pages
7090-7099
Language
english
Abstract
A new strategy for the rapid identification of new malaria antigens based on protein structural motifs was previously described. We identified and evaluated the malaria vaccine potential of fragments of several malaria antigens containing α-helical coiled coil protein motifs. By taking advantage of the relatively short size of these structural fragments, we constructed different poly-epitopes in which 3 or 4 of these segments were joined together via a non-immunogenic linker. Only peptides that are targets of human antibodies with anti-parasite in vitro biological activities were incorporated. One of the constructs, P181, was well recognized by sera and peripheral blood mononuclear cells (PBMC) of adults living in malaria-endemic areas. Affinity purified antigen-specific human antibodies and sera from P181-immunized mice recognised native proteins on malaria-infected erythrocytes in both immunofluorescence and western blot assays. In addition, specific antibodies inhibited parasite development in an antibody dependent cellular inhibition (ADCI) assay. Naturally induced antigen-specific human antibodies were at high titers and associated with clinical protection from malaria in longitudinal follow-up studies in Senegal.
Pubmed
Web of science
Create date
26/10/2011 13:12
Last modification date
20/08/2019 15:14
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