Molecular mechanisms of cellular resistance to folate analogs.
D000818:Animals; D001692:Biological Transport; D004351:Drug Resistance; D005493:Folic Acid Antagonists / Q000378:metabolism / Q000494:pharmacology*; D006801:Humans; D008727:Methotrexate / Q000494:pharmacology; D009369:Neoplasms / Q000188:drug therapy*; D013762:Tetrahydrofolate Dehydrogenase / Q000096:biosynthesis / Q000235:genetics
D005493:Folic Acid Antagonists; D013762:Tetrahydrofolate Dehydrogenase; D008727:Methotrexate