Abstract
Ehrlich ascites carcinoma cells (4×10 5 cells/mouse) were inoculated intraperitoneally in 7-week-old SLC:ICR mice, and polyamine levels in peripheral erythrocytes and in ascites cells were determined periodically. Polyamine levels in peripheral erythrocytes increased linearly until 10 days after cell inoculation, while ascites cells showed exponential growth. The effect of carbazilquinone on cellular growth and polyamine levels in erythrocytes was also studied. When 1 or 2mg/kg of carbazilquinone was injected intraperitoneally on day 4 or on day 7, cellular growth was suppressed and the survival time of the mice was lengthened. The polyamine levels in erythrocytes were also markedly decreased 3 days after the carbazilquinone injection. These results suggest that the polyamine levels in peripheral erythrocytes are closely related to the cellular growth of Ehrlich ascites carcinoma cells.
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