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Antitumor activity of 1,3-bis-(2-chloroethyl)-1-nitrosourea (BCNU) and 1-(2-chloroethyl)-3-(4-methyl-cyclohexyl)-1-nitrosourea (MeCCNU) on yoshida sarcoma ascites cells implanted into the colon wall of rats

Antitumoraktivität von 1,3-Bis-(2-chloräthyl)-1-nitrosoharnstoff (BCU) und 1-(2-chloräthyl)-3-(4-methyl-cyclohexyl)-1-nitrosoharnstoff (MeCCNU) in die wand des colon descendes durch implantierte sarkomzellen bei ratten

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  • Experimental Oncology
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Zusammenfassung

Einhundertzwanzig männlichen Sprague-Dawley-Ratten wurden jeweils 3000 Zellen eines Yoshida-Sarkoms in die Wand des Colon descendens verimpft. Am 8. Tag nach der Tumorimplantation wurden die Tiere randomisiert in vier Versuchsgruppen von jeweils 30 Ratten aufgeteilt. Die Wirkung von Cyclophosphamid (70 mg/kg), BCNU (25 mg/kg) und Methyl-CCNU (45 mg/kg) bei einmaliger i.p. Gabe wurde untersucht. Das ins Colon transplantierte Yoshida-Sarkom ist gegeüber allen drei Chemotherapeutika sensibel. Bei den gewählten Dosierungen zeigte Cyclophosphamide die günstigsten Ergebnisse. Die beiden Nitrosoharnstoffe waren in ihrer Antitumoraktivität vergleichbar, während bei Methyl-CCNU die toxischen Wirkungen sich als ausgeprägter erwiesen.

Der Einsatz des Modells im Rahmen der tierexperimentellen Prüfung neuer Cytostatika wird diskutiert.

Summary

Three thousand Yoshida sarcoma cells were inoculated into the wall of the descending colon of each of 120 male Sprague-Dawley rats. On day 8 after the tumor implantation, the animals were at random divided into four groups of 30 rats each. The effect of cyclophosphamide (70 mg/kg), BCNU (25 mg/kg), and methyl-CCNU (45 mg/kg) after single i.p. application was investigated. The Yoshida sarcoma transplanted into the colon is sensitive to all three chemotherapeutic drugs. At the doses given cyclophosphamide showed the best results. The two nitrosoureas had a comparable antitumor activity but methyl-CCNU showed a more distinct toxic effect.

The introduction of this model for testing new cytostatics in animal experiments is discussed.

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Bhide, S., Habs, M., Reinbold, H. et al. Antitumor activity of 1,3-bis-(2-chloroethyl)-1-nitrosourea (BCNU) and 1-(2-chloroethyl)-3-(4-methyl-cyclohexyl)-1-nitrosourea (MeCCNU) on yoshida sarcoma ascites cells implanted into the colon wall of rats. J Cancer Res Clin Oncol 94, 63–67 (1979). https://doi.org/10.1007/BF00405350

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  • DOI: https://doi.org/10.1007/BF00405350

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