analysis of polyamine levels in neplanocin a-treated cells showed a 3.8-fold decrease in putrescine and a 1.7-fold decrease in spermidine by 24 hr , reflecting a decrease in the cell growth rate in response to neplanocin a rather than a direct effect of s-neplanocylmethionine on the cellular s-adenosylmethionine decarboxylase .
C0007595
cell growth
C0007634
cellular