Thymidylate SynthaseFluorodeoxyuridylateDeoxyuracil NucleotidesThymidine MonophosphateFolic Acid AntagonistsGene Expression ProfilingFloxuridineGene ExpressionGene Expression RegulationAntimetabolites, AntineoplasticDihydrouracil Dehydrogenase (NADP)ThiophenesTetrahydrofolatesFluorouracilRNA, MessengerQuinazolinesFolic AcidNucleoside-Phosphate KinaseIsoindolesTrimetrexateMolecular Sequence DataDeoxyuridineBase SequenceLactobacillus caseiTetrahydrofolate DehydrogenaseOligonucleotide Array Sequence AnalysisPteroylpolyglutamic AcidsLeukemia L1210MethyltransferasesPolyglutamic AcidGene Expression Regulation, NeoplasticMutationTranscription, GeneticReverse Transcriptase Polymerase Chain ReactionGene Expression Regulation, EnzymologicThymidine PhosphorylaseMethotrexatePromoter Regions, GeneticEnzyme InhibitorsThymine NucleotidesThymidineAmino Acid SequenceColorectal NeoplasmsTumor Cells, CulturedGene Expression Regulation, DevelopmentalEscherichia coliCell LineLeucovorinColonic NeoplasmsGene Expression Regulation, PlantCloning, MolecularKineticsOrotate PhosphoribosyltransferaseGlycine HydroxymethyltransferaseCitrate (si)-SynthaseTranscription FactorsHydroxymethyl and Formyl TransferasesGlutamatesGenotypeSignal TransductionThymidine KinaseReduced Folate Carrier ProteinPolymorphism, GeneticPolymorphism, Single NucleotideMethylenetetrahydrofolate Reductase (NADPH2)DNA-Binding ProteinsCell Line, TumorGuanineLentinanBinding Sites5-Methyltetrahydrofolate-Homocysteine S-MethyltransferasePhosphoribosylaminoimidazolecarboxamide FormyltransferaseCells, CulturedDNA PrimersGene Expression Regulation, BacterialDrug Resistance, NeoplasmGlycogen SynthasePolymerase Chain ReactionDNATime FactorsGlycogen Synthase Kinase 3PlasmidsPhosphoribosylglycinamide FormyltransferaseImmunohistochemistryCell CycleTransfectionNitric Oxide Synthase Type IUracilCell DivisionAntineoplastic AgentsDrug ResistancePhenotypeBlotting, WesternUp-RegulationTandem Repeat SequencesProtein BindingModels, MolecularAdenocarcinomaDose-Response Relationship, DrugDown-Regulation