title: Enhancement of reactivity of HLA-Cw antisera by extending the incubation time.
abstract: HLA-Cw antisera showing weak cytotoxic activity when tested at 1 1/2 hours in the conventional HLA-A,B, Cw testing procedure, were found to react better in the test using an extended incubation period of 3 hours. Of the 71 sera which were tested, 15 (21%) sera demonstrated an increase in anti-HLA-Cw reactivity against cells from donors possessing the corresponding Cw antigen. In addition, the use of B cells in the testing procedure appeared to be more favorable than T cells in the enhancement of reactivity of weak HLA-Cw antisera.
mesh_terms: D001402:B-Lymphocytes / Q000276:immunology; D003601:Cytotoxicity Tests, Immunologic; D003602:Cytotoxicity, Immunologic; D006680:HLA Antigens / Q000276:immunology*; D006650:Histocompatibility Testing; D006801:Humans; D007106:Immune Sera / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology; D013997:Time Factors
chemical_list: D006680:HLA Antigens; D007106:Immune Sera