title: Regulation of phosphodiesterase and ornithine decarboxylase by cAMP is cell cycle independent.
abstract: Cyclic AMP (cAMP) causes growth arrest in G1 and induction of cAMP phosphodiesterase and decrease of ornithine decarboxylase in S49 mouse lymphoma cells. Dibutyryl cAMP treatment of partially synchronized cells causes similar changes in activities of both enzymes, regardless of position in the cell cycle. This suggests that cAMP regulation of these enzymes is not mediated by growth perturbation.
mesh_terms: D015105:3',5'-Cyclic-AMP Phosphodiesterases / Q000378:metabolism*; D000818:Animals; D003994:Bucladesine / Q000494:pharmacology; D002262:Carboxy-Lyases / Q000378:metabolism*; D002453:Cell Cycle / Q000187:drug effects*; D002455:Cell Division / Q000187:drug effects; D002460:Cell Line; D000242:Cyclic AMP / Q000494:pharmacology*; D008223:Lymphoma / Q000378:metabolism; D051379:Mice; D009374:Neoplasms, Experimental / Q000378:metabolism; D009955:Ornithine Decarboxylase / Q000378:metabolism*
chemical_list: D003994:Bucladesine; D000242:Cyclic AMP; D015105:3',5'-Cyclic-AMP Phosphodiesterases; D002262:Carboxy-Lyases; D009955:Ornithine Decarboxylase