Abstract
Imidazolium-trans-dimethylsulfoxideimidazoletetrachlororuthenate (NAMI-A) is a ruthenium compound effective on solid tumor metastases. In this study, we evaluated the effects of different routes of administration of NAMI-A on the distribution to primary tumor, lungs and kidneys in BD2F1 hybrids with Lewis lung carcinoma or in CBA inbred mice with MCa mammary carcinoma. NAMI-A concentration and the percentage of cumulative dose (%D tot) retained in these tissues is independent of the animal strain and of the tumor model used. Also the presence of the tumor does not change the distribution of NAMI-A in the lungs and in the kidneys. A dose-dependent antimetastatic effect is evident with intraperitoneal (i.p.) treatments at three different doses. Treatment of tumor bearing mice with NAMI-A administered i.p., per os or by aerosol showed a similar effect on lung metastases, although the concentration of ruthenium reached in the lungs was markedly different. On the basis of the data obtained, we can conclude that the antimetastatic effects are related to the amount of NAMI-A administered, rather than to the lung's concentration of the compound.
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Cocchietto, M., Zorzet, S., Sorc, A. et al. Primary Tumor, Lung and Kidney Retention and Antimetastasis Effect of NAMI-A Following Different Routes of Administration. Invest New Drugs 21, 55–62 (2003). https://doi.org/10.1023/A:1022916310694
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DOI: https://doi.org/10.1023/A:1022916310694