Seasonal fluctuation of antibody levels to Plasmodium falciparum parasitized red blood cell-associated antigens in two Senegalese villages with different transmission conditions. - RIIP - Réseau International des Instituts Pasteur Access content directly
Journal Articles American Journal of Tropical Medicine and Hygiene Year : 2000

Seasonal fluctuation of antibody levels to Plasmodium falciparum parasitized red blood cell-associated antigens in two Senegalese villages with different transmission conditions.

Abstract

The recombinant R23, PfEB200, and GST-5 antigens derive from conserved antigens associated with the Plasmodium falciparum-infected erythrocyte membrane. They were identified as targets of protective antibodies in the Saimiri sciureus model. We have assessed here the humoral response to these antigens in humans. Cross-sectional surveys were conducted in two Senegalese villages with different levels of endemicity. The prevalence of specific IgG and IgM was similar and influenced by age in both localities. The anti-R23 antibodies decreased after the rainy season, particularly in the children less than ten years old. The anti-PfEB200 response did not show significant seasonal variation. The anti-GST-5 response increased in both the less-than 10-year-old and the greater-than 10-year-old groups after the rainy season in Dielmo, but only in the Ndiop villagers who were more than 10-years-old. Thus, antigen-specific seasonal variations of antibody levels were influenced differently by age in both villages. The isotype distribution was antigen-specific and differed for both seasons.

Dates and versions

pasteur-00566860 , version 1 (17-02-2011)

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Cite

R. Perraut, O. Mercereau-Puijalon, Babacar Diouf, A. Tall, M. Guillotte, et al.. Seasonal fluctuation of antibody levels to Plasmodium falciparum parasitized red blood cell-associated antigens in two Senegalese villages with different transmission conditions.. American Journal of Tropical Medicine and Hygiene, 2000, 62 (6), pp.746-51. ⟨10.4269/ajtmh.2000.62.746⟩. ⟨pasteur-00566860⟩
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