期刊
TRANSFUSION
卷 54, 期 10, 页码 2477-2484出版社
WILEY-BLACKWELL
DOI: 10.1111/trf.12661
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资金
- Molecular and Cell Biology of RAS Presidium
BackgroundMonoclonal (MoAb) reagents are routinely used and are usually very reliable for the serologic determination of ABO blood types. However, the fine specificity and cross-reactivity of these reagents are often unknown, particularly against synthetic antigens used in some diagnostic assays. If nonserologic assays or very sensitive techniques other than those specifically prescribed by the manufacturer are used, then there is a risk of incorrect interpretation of results. Study Design and MethodsForty-seven MoAbs and two polyclonal ABO reagents were tested against red blood cell (RBC) kodecytes prepared with A trisaccharide, A Type1, A Type2, A Type3, A Type4, B trisaccharide, B Type1, B Type2, acquired B trisaccharide, and Le(a) trisaccharide function-spacer-lipid (FSL) constructs. Natural RBCs were tested in parallel. In addition these FSL constructs were printed onto paper with a desktop inkjet printer and used in a novel immunoassay that identifies reactivity through the appearance of alphanumeric characters. ResultsMapping of MoAbs with kodecytes and printed FSL constructs revealed a series of broad recognition patterns. All ABO MoAbs tested were reactive with the RBC dominant Type2 ABO antigens. Unexpectedly some anti-A reagents were reactive against the B Type1 antigen, while others were poorly reactive with trisaccharide antigens. ConclusionsAll ABO MoAbs detect the RBC dominant Type2 ABO antigens; however, some reagents may show minor reactivity with inappropriate blood group antigens, which needs to be considered when using these reagents in alternative or highly sensitive analytic systems.
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