National Cancer Institute National Cancer Institute
U.S. National Institutes of Health National Cancer Institute
Send to Printer
NCI Drug Dictionary

5,10-methylenetetrahydrofolate
A folate-based biomodulator with potential antineoplastic activity. 5,10-methylenetetrahydrofolate (MTHF) stabilizes the covalent binding of the fluorouracil metabolite 5-5-fluoro-2'-deoxyuridine-5'-O-monophosphate (FdUMP) to its target enzyme, thymidylate synthase, which results in inhibition of thymidylate synthase, depletion of thymidine triphosphate (TTP), a necessary constituent of DNA, and tumor cell death. Unlike leucovorin, MTHF, as the active form of folate, does not require metabolic activation and may increase the chemotherapeutic effects of fluorouracil with lower toxicity. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)

US brand name:CoFactor
Abbreviations:5,10-MTHF
MTHF
Code name:ANX-510

Previous:3,4-methylenedioxymethamphetamine, 3-deazauridine, 4'-iodo-4'-deoxydoxorubicin, 4-hydroxytamoxifen, 4-nitroestrone 3-methyl ether
Next:5-[18F]fluorouracil, 5-hydroxytryptophan, 50% oxygen/50% nitrous oxide premix, 6-azauridine, 7-cyanoquinocarcinol