Synergism of endogenous inhibitors, exogenous cytostatic agents and hormones in arrest of proliferation |
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Authors: | J Mann A Balázs |
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Abstract: | The synergism between endogenous regulators of proliferation (protors), alkylating agents and hormones in vitro was studied. The effects were monitored by the incorporation of 3H-TdR into human and rat short term bone marrow cultures and by the formation of mouse granulocyte-macrophage colonies in semisolid agar capillaries. An additive and/or slight potentiating synergism was demonstrated between different types of inhibitory protors (GI-3S2, GI-3S3 and GI-3B), between GI-3 and hydrocortisone, and between GI-3 and the alkylating agents (adriamycin, dianhydrogalactitol) examined. The results offer a real possibility of strengthening the inhibition of neoplastic proliferation without increasing cytotoxicity of the drugs used. |
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