1985
Lack of enhanced cytotoxicity of cultured L1210 cells using folinic acid in combination with sequential methotrexate and fluorouracil
Danhauser L, Heimer R, Cadman E. Lack of enhanced cytotoxicity of cultured L1210 cells using folinic acid in combination with sequential methotrexate and fluorouracil. Cancer Chemotherapy And Pharmacology 1985, 15: 214-219. PMID: 3876889, DOI: 10.1007/bf00263888.Peer-Reviewed Original ResearchConceptsSequential methotrexateΜM methotrexateL1210 cellsSynergistic cell killingCultured L1210 cellsFolinic acidMTX pretreatmentMethotrexateL1210 cell growthAcid-precipitable materialHuman neoplasmsPresence of methotrexateFUraInhibitory effectElevated levelsEnhanced cytotoxicityCell killingCell fractionCytotoxicityDUrd incorporationInhibitionThymidylate synthetaseCell growthThymidylate synthesisCultured cells
1981
Effect of de novo purine synthesis inhibitors on 5-fluorouracil metabolism and cytotoxicity
Cadman E, Benz C, Heimer R, O'Shaughnessy J. Effect of de novo purine synthesis inhibitors on 5-fluorouracil metabolism and cytotoxicity. Biochemical Pharmacology 1981, 30: 2469-2472. PMID: 21043247, DOI: 10.1016/0006-2952(81)90343-9.Peer-Reviewed Original ResearchConceptsSynergistic cytotoxicityEffect of methotrexateActivity of methotrexatePurine synthesis inhibitorsMethotrexate pretreatmentPurine synthesisControl levelsIntracellular elevationL-alanosineIntracellular accumulationGlutamine antagonistMethotrexateL1210 cellsSynthesis inhibitorInhibitorsCytotoxicityDe novo purineL-norleucineMetabolismAntagonistThe influence of methotrexate pretreatment on 5-fluorouracil metabolism in L1210 cells.
Cadman E, Heimer R, Benz C. The influence of methotrexate pretreatment on 5-fluorouracil metabolism in L1210 cells. Journal Of Biological Chemistry 1981, 256: 1695-1704. PMID: 6161926, DOI: 10.1016/s0021-9258(19)69863-7.Peer-Reviewed Original ResearchConceptsMethotrexate pretreatmentConversion of FUraAddition of leucovorinSynergistic antitumor activityAbility of methotrexateTimes control valuesL1210 cellsEnhancement of intracellularSynergistic cell killingSoft agar cloningMethotrexate treatmentAntipurine effectMethotrexateConcentrations of methotrexateMaximal inhibitionControl valuesIntracellular methotrexateFUraInhibitory effectAntitumor activityExact mechanismIntracellular accumulationAgar cloningSimilar elevationsMicroM methotrexate
1979
Enhanced 5-Fluorouracil Nucleotide Formation After Methotrexate Administration: Explanation for Drug Synergism
Cadman E, Heimer R, Davis L. Enhanced 5-Fluorouracil Nucleotide Formation After Methotrexate Administration: Explanation for Drug Synergism. Science 1979, 205: 1135-1137. PMID: 472732, DOI: 10.1126/science.472732.Peer-Reviewed Original Research