NCI Drug Dictionary

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The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

A deoxyuridine prodrug with potential antineoplastic activity. Upon cellular uptake, 2’-F-ara-deoxyuridine (FAU) is phosphorylated by thymidine kinase to FAU monophosphate and subsequently methylated in the 5'-position by thymidylate synthase (TS) to its activated form, 1-(2-deoxy-2-fluoro-beta-D-arabinofuranosyl) 5-methyluracil monophosphate (FMAUMP). FMAUMP is incorporated into DNA leading to an inhibition of DNA synthesis and so cell growth. The catalytic activity of TS is critical to activation of FAU and subsequent incorporation into DNA. FAU may be beneficial in the case of tumors with high TS activity that are resistant to TS inhibitors. Check for active clinical trials using this agent. (NCI Thesaurus)
Chemical structure:1-(2'-deoxy-2'-fluoro-beta-D-arabinofuranosyl) uracil