[Monoclonal antibodies IGR to surface antigens of neutrophilic granulocytes in human blood].

Abstract

Four monoclonal antibodies (MAbs) from series IGR to human peripheral blood neutrophilic granulocyte cell surface antigens were obtained by the conventional hybridoma technique. Specificity of MAbs AGR was determined to various leukemic cell lines and human peripheral blood cells. Overlapping in characteristics of antigens (molecular weight, localization, expression on induced leukemic cell line HL-60) to MAbs IGR-1 4C7, IGR-1 5B6 and IGR-2 IA6 suggests their identity. These, apparently, cannot be analogous to the well known granulocyte cell surface glycoproteins LFA-1, CR-3, p150, 95 or GP 130. The characteristics of MAbs IGR-1 and IGR-2 permit concluding that the antibodies should be useful in normal and leukemic myelomonocytic cell linear differentiation studies.