Expression of spermidine/spermine N1‐acetyltransferase in growing Yoshida AH‐130 hepatoma cells
Maria Alfonsina Desiderio, Lidia Bardella – 1 March 1994 – Activity and messenger RNA levels of spermidine/spermine N1‐acetyltransferase, the rate‐limiting enzyme of the polyamine interconversion pathway, were investigated in host liver and in Yoshida AH‐130 ascites hepatoma cells as a function of tumor growth phases. Enzyme activity reached maximal values at day 10 in host liver (2.0‐fold increase) and at days 10 and 14 in hepatoma cells (4.2‐ and 5.4‐fold increases)– that is, when the cellular growth was nearly arrested.