The effect of cycloheximide on the expression of cell cycle dependent genes
- PMID: 4062932
- DOI: 10.1016/0006-291x(85)91026-5
The effect of cycloheximide on the expression of cell cycle dependent genes
Abstract
We have investigated the inducibility of several cell cycle-dependent genes (plus control sequences, not expressed in a cell cycle-dependent manner) in the presence of cycloheximide, an inhibitor of protein synthesis. The genes studied include: 1) five cDNA clones that are preferentially expressed in the G1 phase of the cell cycle: KC-1, JE-3, 2F1, 4F1 and 2A9; 2) one gene preferentially expressed in late G1/S phase: histone H3; and 3) the cell cycle-dependent oncogene p53. All the genes studied are induced by serum even in the presence of cycloheximide. Previous results in the literature have shown that 2 other oncogenes, c-myc and c-fos, can be induced by growth factors in the presence of cycloheximide. Together with our results, these findings indicate that protein synthesis is not required for the induction of at least nine cell cycle genes by growth factors.
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