title: [K-Lymphocyte cytotoxicity: role of human blood group ABO, rhesus and P alloantibodies].
abstract: Using human erythrocytes of known antigenic density, sensitized by ABO and Rhesus (D) alloantibodies, it is shown that K cell cytotoxicity mediated by peripheral blood lymphocytes is directly correlated with the number of IgG molecules specifically bound to the target cell surface. The lytic sensitivity of P1k but not P2 or p erythrocytes coated with anti-Tja (anti-P + P1 + Pk) antibodies, demonstrates that effector K cells are mainly triggered through the IgG ANTI-Pk component of such sera.
mesh_terms: D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D004912:Erythrocytes / Q000276:immunology; D006801:Humans; D007111:Immunity, Cellular; D007074:Immunoglobulin G / Q000032:analysis; D007518:Isoantibodies; D007694:Killer Cells, Natural / Q000276:immunology*; D010127:P Blood-Group System; D012204:Rh-Hr Blood-Group System
chemical_list: D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D007074:Immunoglobulin G; D007518:Isoantibodies; D010127:P Blood-Group System; D012204:Rh-Hr Blood-Group System
vernacular_title: Cytotoxicité des lymphocytes K : rôle des anticorps de groupes sanguins humains ABO, Rhésus et P.