Antibodies in children with malaria to PfEMP1, RIFIN and SURFIN expressed at the Plasmodium falciparum parasitized red blood cell surface.

Quintana MDP, Ch'ng JH, Moll K, Zandian A, Nilsson P, Idris ZM, Saiwaew S, Qundos U, Wahlgren M

Sci Rep 8 (1) 3262 [2018-02-19; online 2018-02-19]

Naturally acquired antibodies to proteins expressed on the Plasmodium falciparum parasitized red blood cell (pRBC) surface steer the course of a malaria infection by reducing sequestration and stimulating phagocytosis of pRBC. Here we have studied a selection of proteins representing three different parasite gene families employing a well-characterized parasite with a severe malaria phenotype (FCR3S1.2). The presence of naturally acquired antibodies, impact on rosetting rate, surface reactivity and opsonization for phagocytosis in relation to different blood groups of the ABO system were assessed in a set of sera from children with mild or complicated malaria from an endemic area. We show that the naturally acquired immune responses, developed during malaria natural infection, have limited access to the pRBCs inside a blood group A rosette. The data also indicate that SURFIN

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PubMed 29459776

DOI 10.1038/s41598-018-21026-4

Crossref 10.1038/s41598-018-21026-4

10.1038/s41598-018-21026-4

pmc PMC5818650