A simple and safe method for single HLA-antigen-typing by a solid phase assay.
A rapid solid phase assay for detection of single HLA-antigens on platelets was developed. The platelets were attached to the surface of polystyrene microtitre plate wells by means of a sodium carbonate buffer and centrifugation. Uncovered areas were blocked by a gelatin blocking buffer. After incubation with commercially available anti-HLA-sera the bound anti-HLA-specific antibodies directed against HLA-antigens present on the platelets were made visible by anti-IgG-coated indicator red cells and a brief centrifugation. A positive result, meaning the presence of an HLA-antigen, was indicated by a slight red cell adherence over the reaction surface. In the absence of the HLA-antigen no binding occurred and the indicator red cells formed a small red disc-like pellet.
Häcker-Shahin
B
B
Klinikum Karlsruhe, Akademisches Lehrkrankenhaus der Universität Freiburg, Karlsruhe, Germany.
Giannitsis
D J
DJ
D001792:Blood Platelets / Q000276:immunology; D002021:Buffers; D004912:Erythrocytes / Q000276:immunology; D006680:HLA Antigens / Q000145:classification*; D006650:Histocompatibility Testing / Q000379:methods*; D006801:Humans
D002021:Buffers; D006680:HLA Antigens