Abstract: A method for killing unwanted target cells in a cell population comprising nucleated cells harvested from peripheral blood, or CD-34+ or similar early progenitor cells selected from the above nucleated cells or from bone marrow aspirates, in which method the cell population is in vitro or in vivo exposed to two or more immunotoxins selectively killing the malignant cells, is described. Furthermore the invention relates to the mixture of immunotixins, the use of the mixture and a kit for performing the method.

Abstract: A method for killing unwanted target cells in a cell population comprising nucleated cells harvested from peripheral blood, or CD-34+ or similar early progenitor cells selected from the above nucleated cells or from bone marrow aspirates, in which method the cell population is in vitro or in vivo exposed to two or more immunotoxins selectively killing the malignant cells, is described. Furthermore the invention relates to the mixture of immunotixins, the use of the mixture and a kit for performing the method.

Abstract: The invention relates to a method and apparatus for detecting specific target cells in a simple and time-saving way, using paramagnetic particles, antibodies recognizing the Fc portions of target-cell associating antibodies and target-cell associating antibodies directed to specific antigen determinants in the target-cell membranes. Incubation of the cell suspension with detergent and/or second antibodies or antibody fragments, prelabeled or not with fluorescent agents, metallocolloids, radioisotopes, biotin complexes or certain enzymes allowing visualization, dramatically increase the specificity of the method. The method and apparatus described provides a solid support and permanent record which is easily viewed by microscopy, permits viewing and quantification of the whole specimen rather than small fractions thereof and allows the use of large specimen volumes to be analysed, the device may also be scanned automatically by conventional densitometric technology.