title: Enhancement of 5-fluorouracil uptake into the bacterial cell by piperacillin.
abstract: The antibacterial activity of 5-fluorouracil, an antineoplastic agent, was found to be enhanced by piperacillin, a beta-lactam antibiotic, resulting in a synergism. It was considered that the synergism was caused by an increase of 5-fluorouracil uptake into the bacterial cell. On the other hand, amount of piperacillin bound to penicillin binding protein (PBP) did not change when 5-fluorouracil was added. The morphological change of the cell was due to the 5-fluorouracil when synergism appeared between 5-fluorouracil and piperacillin.
mesh_terms: D001419:Bacteria / Q000187:drug effects / Q000378:metabolism*; D001426:Bacterial Proteins; D002352:Carrier Proteins / Q000378:metabolism; D004357:Drug Synergism; D005472:Fluorouracil / Q000378:metabolism* / Q000494:pharmacology; D006602:Hexosyltransferases; D002267:Muramoylpentapeptide Carboxypeptidase / Q000378:metabolism; D046915:Penicillin-Binding Proteins; D010458:Peptidyl Transferases; D010878:Piperacillin / Q000378:metabolism / Q000494:pharmacology*
chemical_list: D001426:Bacterial Proteins; D002352:Carrier Proteins; D046915:Penicillin-Binding Proteins; D010458:Peptidyl Transferases; D006602:Hexosyltransferases; D002267:Muramoylpentapeptide Carboxypeptidase; D005472:Fluorouracil; D010878:Piperacillin