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  • Title: [Molecular biology methods in immunohematology].
    Author: Tournamille C.
    Journal: Transfus Clin Biol; 2013 May; 20(2):72-9. PubMed ID: 23587623.
    Abstract:
    The molecular basis of almost all antigens of the 33 blood group systems are known. These knowledge and the advent of the PCR technology have allowed the DNA-based genotyping in order to predict the presence or absence of a blood group antigen on the cell membrane of red blood cells. DNA genotyping is required in cases where red blood cells patient cannot be used for serological typing either after a recent transfusion or because of the presence of autoantibodies on the red blood cells. Numerous DNA assays are available to detect any nucleotide polymorphism on the genes encoding blood group antigens. The technologies have improved to answer quickly to any case of transfusion emergency and to limit the risk of DNA contamination in a molecular diagnostic laboratory. Some technologies are ready for high-throughput blood group genotyping. They will be used in the future to obtain a fully typed blood group card of each donor but also to detect blood donors with rare phenotypes to register them to the Banque Nationale de Sang de Phénotype Rare (BNSPR).
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