Detection of granulocyte-reactive antibodies: a comparison of different methods

被引：17
作者：
Heinzl, M. W. [1 ]
Schoenbacher, M. [1 ]
Dauber, E-M [1 ]
Panzer, S. [1 ]
Mayr, W. R. [1 ]
Koermoeczi, G. F. [1 ]
机构：
[1] Med Univ Vienna, Dept Blood Grp Serol & Transfus Med, A-1090 Vienna, Austria
来源：
VOX SANGUINIS | 2015年 / 108卷 / 03期
关键词：
flow cytometry; granulocyte immunology; granulocyte-reactive antibodies; human neutrophil antigens; microbeads assay; ACUTE LUNG INJURY; TRANSFUSION REACTIONS; LEUKOCYTE ANTIBODIES; BLOOD-DONORS; ANTIGEN; ALLOANTIBODIES;
D O I：
10.1111/vox.12227
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
Background and ObjectivesGranulocyte-reactive antibodies can cause autoimmune and neonatal immune neutropenias as well as transfusion-related acute lung injury. The classical antibody-detection methods granulocyte aggregation test (GAT), granulocyte immunofluorescence test (GIFT) and monoclonal antibody-specific immobilization of granulocyte antigens (MAIGA) are time-consuming and technically challenging. In recent years, flow cytometric white blood cell immunofluorescence test (Flow-WIFT) and the microbeads assay LabScreen (R) Multi have emerged and are still subject of evaluation. These serological tests were compared on a screening and specification level. Materials and MethodsFor screening, the combination of GAT/GIFT was compared to Flow-WIFT testing 333 samples. Positive samples were further analysed with MAIGA and LabScreen (R) Multi. ResultsGranulocyte aggregation test/GIFT detected 77 positive samples, Flow-WIFT found 108 granulocyte-reactive samples. Six Samples were only positive in GAT/GIFT, and 37 samples were only positive in Flow-WIFT (=0682). Antibody specification with MAIGA and the microbeads assay confirmed granulocyte-reactivity in 83 cases with 70 matching results (=0742). However, out of six detected human neutrophil antigen (HNA) reactivities only two specificities matched in both assays. ConclusionFlow-WIFT may be a valuable addition to GIFT for granulocyte-reactive antibody screening. MAIGA remains the most reliable laboratory method for antibody specification.
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收藏
页码：287 / 293
页数：7
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