Preparing effective dendritic cells or cell lines (A) comprising treating cells (B) of CD124- and CD116-positive lines with at least one stimulatory molecule (I), applied at the same time or sequentially, is new. Independent claims are also included for the following: (1) preparing a pharmaceutical composition by producing (A) by the new method then formulating with carrier and optionally an adjuvant; (2) kit or test system containing (A); and (3) test system comprising (i) CD124- and CD116-positive or (ii) MUTZ-3 cells. ACTIVITY : Cytostatic; Antirheumatic; Immunosuppressive; Immunostimulatory; Antibacterial; Virucide; Antiparasitic; Fungicide; Dermatological; Antiinflammatory; Antianemic; Nephrotropic; Thyrotropic; Antidiabetic; Anthelmintic; Protozoacide. No biological data given. MECHANISM OF ACTION : Vaccine; Immunotherapy.