PMID- 21175660 OWN - NLM STAT- MEDLINE DCOM- 20110412 LR - 20171116 IS - 1423-0410 (Electronic) IS - 0042-9007 (Linking) VI - 100 IP - 1 DP - 2011 Jan TI - Plasmodium falciparum malaria and the immunogenetics of ABO, HLA, and CD36 (platelet glycoprotein IV). PG - 99-111 LID - 10.1111/j.1423-0410.2010.01429.x [doi] AB - Plasmodium falciparum malaria has long been a killer of the young, and has selected for polymorphisms affecting not only erythrocytes, but the immunogenetics of three histocompatibility systems: ABO, human leukocyte antigen (HLA), and CD36. The ABO system is important because the original allele, encoding glycosylation with the A sugar, acts as an adhesion ligand with infected red blood cells (iRBC), thereby promoting vasoocclusion. The prevalence of blood group O, which reduces this cytoadhesion, has increased in endemic areas. Other adaptations which could mitigate A-mediated rosetting include weaker A expression and increased soluble A secretion. The role of the HLA system in malaria has been harder to verify. Although HLA-B53 and DRB1*04 may be associated with clinical outcome, HLA studies are challenged by numerous comparisons in this most polymorphic of systems, and confounded by increasingly heterogeneous populations. Certain HLA markers may also reflect linkage artefact with other malaria-relevant polymorphisms. HLA may be less important because the parasite predominantly invades a compartment which does not express HLA. Adhesion of iRBCs is also mediated by CD36, expressed on platelets, monocytes, and microvascular endothelium. CD36 on monocytes is involved in clearing iRBC, while CD36 on platelets and the endothelium may play a role in tissue sequestration. The genetics of CD36 expression are complex, and recent research is fraught with inconsistent results. The solution may lie in examining genotype-phenotype correlations, zygosity effects on differential tissue expression, or other mechanisms altering CD36 tissue expression. Carefully designed prospective studies should bridge the gap between in-vitro observations and clinical outcomes. CI - (c) 2010 The Author(s). Vox Sanguinis (c) 2010 International Society of Blood Transfusion. FAU - Cserti-Gazdewich, C M AU - Cserti-Gazdewich CM AD - Department of Medicine (Hematology), University Health Network/Toronto General Hospital, Toronto, ON, Canada.Christine.Cserti@uhn.on.ca FAU - Mayr, W R AU - Mayr WR FAU - Dzik, W H AU - Dzik WH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review PL - England TA - Vox Sang JT - Vox sanguinis JID - 0413606 RN - 0 (ABO Blood-Group System) RN - 0 (CD36 Antigens) RN - 0 (HLA Antigens) SB - IM MH - ABO Blood-Group System/genetics MH - Animals MH - Biological Evolution MH - CD36 Antigens/genetics MH - Genetic Predisposition to Disease MH - HLA Antigens/genetics MH - Host-Parasite Interactions/genetics/immunology MH - Humans MH - Immunogenetic Phenomena MH - Malaria, Falciparum/*genetics/*immunology MH - Models, Genetic MH - Mutation MH - Plasmodium falciparum/immunology/pathogenicity EDAT- 2010/12/24 06:00 MHDA- 2011/04/13 06:00 CRDT- 2010/12/24 06:00 PHST- 2010/12/24 06:00 [entrez] PHST- 2010/12/24 06:00 [pubmed] PHST- 2011/04/13 06:00 [medline] AID - 10.1111/j.1423-0410.2010.01429.x [doi] PST - ppublish SO - Vox Sang. 2011 Jan;100(1):99-111. doi: 10.1111/j.1423-0410.2010.01429.x.