NCI Drug Dictionary
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.
- CD-expressing Bifidobacterium APS001F
A recombinant anaerobic bacterium, Bifidobacterium longum, encoding the cytosine deaminase (CD) gene with potential antineoplastic adjuvant activity. Upon injection, the CD-expressing bifidobacterium preferentially localizes and grows in the hypoxic environment of the tumor and expresses CD, an enzyme that catalyzes the intracellular conversion of the prodrug flucytosine (5-FC) into the antineoplastic agent 5-fluorouracil (5-FU). Upon administration of 5-FC, and subsequent localized conversion into 5-FU and its cytotoxic active metabolites, the tumor is specifically exposed to cytotoxic agents while the exposure to normal tissues is minimal.
Code name: APS001F