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  • Title: [Demonstration of platelet-specific alloantibodies in HLA-sensitized hematologic oncologic patients].
    Author: Schnaidt M, Wernet D, Mayer G, Northoff H.
    Journal: Beitr Infusionsther Transfusionsmed; 1994; 32():240-3. PubMed ID: 9480099.
    Abstract:
    Alloimmunization to the platelet-specific antigen systems HPA-1, -3 and -5 was studied in 59 multitransfused patients (31 females, 16 males, 12 children) with haematologic-oncologic disorders. All patients tested had broad-reacting or multispecific HLA antibodies. Of these, 10 (17%) were found to have additional platelet-specific alloantibodies. With respect to HLA sensitization, 9 out of 10 platelet-specific alloantibodies were found in sera which showed HLA antibodies reacting with more than 95% of unselected panel cells. Determination of antibody specificity revealed 6 patients with anti-HPA-1b, one patient with anti-HPA-3a, and 2 patients with anti-HPA-1b combined with anti-HPA-3a. One patient had anti-HPA-5b; in retrospect, only the HPA-5b antibody was demonstrable before the beginning of transfusion therapy and before HLA sensitization.
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