In vitro cytotoxicity testing of new generation oxazaphosphorines against human histiocytic lymphoma cells.
Oxazaphosphorines belong to a group of alkylating agents. Mafosfamide cyclohexylamine salt (D-17272), 4-hydro-peroxy-cyclophosphamide (D-18864) and glufosfamide (D-19575, beta-D-glucose-isophosphoramide mustard) are new generation oxazaphosphorines. The objective of the present study was to compare the cytotoxic action of these oxazaphosphorine compounds against human histiocytic lymphoma U937 cells. The chemical structures of the oxazaphosphorines were responsible for the different responses of U937 cells. The cytotoxic effects of D-17272, D-18864, and D-19575 on U937 cells depended on the agent tested, its dose, and the time intervals after the oxazaphosphorine application. Among the oxazaphosphorine agents, D-18864 appeared to be the most cytotoxic, and D-19575 was characterized by the lowest cytotoxicity. The in vitro cytotoxic activities of the oxazaphosphorines were strongly associated with their cell death inducing potential.
Department of Experimental Hematology, Jagiellonian University, Gronostajowa 9, 30-387 Cracow, Poland.
Małgorzata
M
Opydo-Chanek
Lidia
L
Mazur
Marta
M
Stojak
D018906:Antineoplastic Agents, Alkylating / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects*; D049109:Cell Proliferation / Q000187:drug effects; D003520:Cyclophosphamide / Q000031:analogs & derivatives* / Q000494:pharmacology; D005434:Flow Cytometry; D005947:Glucose / Q000031:analogs & derivatives* / Q000494:pharmacology; D006801:Humans; D007069:Ifosfamide / Q000031:analogs & derivatives* / Q000494:pharmacology; D016403:Lymphoma, Large B-Cell, Diffuse / Q000188:drug therapy / Q000473:pathology*; D053078:Membrane Potential, Mitochondrial / Q000187:drug effects*; D009336:Necrosis; D010752:Phosphoramide Mustards / Q000494:pharmacology*; D014407:Tumor Cells, Cultured
D018906:Antineoplastic Agents, Alkylating; D010752:Phosphoramide Mustards; C092028:beta-D-glucosylisophosphoramide mustard; C027061:isophosphamide mustard; C037933:Asta Z 7557; D003520:Cyclophosphamide; D005947:Glucose; D007069:Ifosfamide