Metastasis is a complex multicomponent process that largely determines the effect of the tumor process on the body. The study of indicators of changes in the activity of metastasis under the influence of new antitumor agents is one of the most important tasks of experimental pharmacology and oncology. The effect of the organotin compounds (OOS) bis (3,5-di-tert-butyl-4-hydroxyphenylthiolate) dimethylolol (Me3) and (3,5-di-tert-butyl-4-hydroxyphenylthiolate) triphenylolol (Me5) was studied at the maximum effective total doses of 375 mg/kg and 250 mg/kg, respectively, on a model of a spontaneously metastasizing transferable tumor melanoma B16. Both compounds showed a high antimeta- static effect, more pronounced for the dialkyl organic compound.
organotin compounds, metastasis, antitumor agents, B16 melanoma, in vivo studies
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