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Immunosuppressive activity of ledakrin
The influence of the cytostatic drug Ledakrin on immunologic induction of PF and RF cells was studied. In low doses, the drug had a negligibly small effect on the numbers of PFC and RFC, but in high doses nearly entirely prevented their appearance. Cells producing IgM were more susceptible to this action than IgG-producing cells. Absence of a linear relation between the dose of the drug and its action was noteworthy. Drug-induced immunosuppression occured in "all-or-none" fashion. The possibility of oncostatic effect without interfering with the immunologic system is discussed.
The influence of the cytostatic drug Ledakrin on immunologic induction of PF and RF cells was studied. In low doses, the drug had a negligibly small effect on the numbers of PFC and RFC, but in high doses nearly entirely prevented their appearance. Cells producing IgM were more susceptible to this action than IgG-producing cells. Absence of a linear relation between the dose of the drug and its action was noteworthy. Drug-induced immunosuppression occured in "all-or-none" fashion. The possibility of oncostatic effect without interfering with the immunologic system is discussed.