title: Inhibition of dihydrofolate reductase gene expression following serum withdrawal or db-cAMP addition in methotrexate-resistant mouse fibroblasts.
mesh_terms: D000818:Animals; D001769:Blood; D003994:Bucladesine / Q000494:pharmacology*; D002460:Cell Line; D004247:DNA / Q000096:biosynthesis; D005786:Gene Expression Regulation / Q000187:drug effects; D007399:Interphase; D007700:Kinetics; D008727:Methotrexate / Q000494:pharmacology; D051379:Mice; D011132:Polyribosomes / Q000032:analysis; D012333:RNA, Messenger / Q000378:metabolism; D013762:Tetrahydrofolate Dehydrogenase / Q000096:biosynthesis / Q000235:genetics*; D013806:Theophylline / Q000494:pharmacology
chemical_list: D012333:RNA, Messenger; D003994:Bucladesine; D004247:DNA; D013806:Theophylline; D013762:Tetrahydrofolate Dehydrogenase; D008727:Methotrexate