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Chapter 10 : Battling Blood Stages

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Battling Blood Stages, Page 1 of 2

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Abstract:

Identification of the surface antigens of can be traced to studies carried out by Monroe Eaton in the 1930s. Eaton showed that serum from monkeys infected with could agglutinate schizontinfected red cells. This schizont-infected cell agglutination (SICA) reaction was a clear indication that the surface of the malaria infected red cell had been altered. Sequestration and immune evasion are linked to the finding that erythrocyte membrane protein 1 (PfEMP1) has three different adhesive domains: DBL (Duffy ligand binding), a CIDR (cysteine-rich interdomain region), and an acidic region, called the ATS (acidic terminal sequence), that is presumed to anchor the molecule to the red cell surface. Each year over 50 million women are exposed to the risk of malaria during pregnancy. Pregnancy malaria (PM) results in substantial maternal and especially fetal and infant morbidity and mortality, causing 75,000 to 200,000 infant deaths annually. Rosetting has also been observed in , , , in the rhesus monkey, and in the toque monkey. Rosetting in some of these hosts may be benign, but in others, i.e., humans infected with , it may contribute to pathogenesis leading to severe malaria. The substances to which the rosetting red blood cells bind are heparan sulfate, blood group antigens, and complement receptor 1.

Citation: Sherman I. 2009. Battling Blood Stages, p 216-233. In The Elusive Malaria Vaccine. ASM Press, Washington, DC. doi: 10.1128/9781555817428.ch10

Key Concept Ranking

Infection and Immunity
1.0645134
Immune Systems
0.73461086
Parasitic Diseases
0.72712004
Immune Receptors
0.6028951
Blood Infections
0.59860885
Plasmodium falciparum
0.5277778
1.0645134
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