Tsuneyoshi, Kengo Induction of thymidine phosphorylase expression by AZT contributes to enhancement of 5'-DFUR cytotoxicity. [electronic resource] - Cancer letters Dec 2006 - 239-46 p. digital Publication Type: Journal Article ISSN: 0304-3835 Standard No.: 10.1016/j.canlet.2005.12.020 doi Subjects--Topical Terms: Antimetabolites--pharmacologyCell Survival--drug effectsDrug SynergismFloxuridine--toxicityFluorouracil--toxicityHumansThymidine Phosphorylase--metabolismTransfectionU937 Cells--drug effectsZidovudine--pharmacology