Investigation of host factors possibly enhancing the emergence of the chondroitin sulfate A-binding phenotype in Plasmodium falciparum

被引:5
作者
Nunes, Marta C. [1 ]
Sterkers, Yvon [1 ]
Gamain, Benoit [1 ]
Scherf, Artur [1 ]
机构
[1] Inst Pasteur, Unite Biol Interact Hote Parasite, CNRS, URA 2581, F-75724 Paris 15, France
关键词
placental malaria; Plasmodium falciparum; var2CSA;
D O I
10.1016/j.micinf.2008.05.006
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
In malaria endemic areas, regardless of immunity acquired during lifelong exposure to malaria, pregnant women become susceptible to Plasmodium falciparum infections. Malaria during pregnancy is associated with a massive sequestration of infected erythrocytes in the placenta and the emergence of a unique parasite-derived adhesive molecule (encoded by var2CSA) that binds to chondroitin sulfate A (CSA). How P. falciparum achieves the timely expression of the CSA ligand in pregnant women remains puzzling. We investigated whether host serum-specific factors present only during pregnancy may induce var2CSA expression. Our panel of experiments did not reveal significant changes in var2CSA levels and CSA-binding capacity. (c) 2008 Elsevier Masson SAS. All rights reserved.
引用
收藏
页码:928 / 932
页数:5
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