National Cancer Institute National Cancer Institute
U.S. National Institutes of Health National Cancer Institute
Dictionary of Cancer Terms
Send to Printer
cytochrome P450 enzyme system (SY-tuh-krome ... EN-zym SIS-tem)

 A group of enzymes involved in drug metabolism and found in high levels in the liver. These enzymes change many drugs, including anticancer drugs, into less toxic forms that are easier for the body to excrete.

Previous Definitions:cystoscopy, cystourethrectomy, cytarabine, cytarabine liposome, cytochlor
Next Definitions:cytogenetics, cytokine, cytology, cytomegalovirus, Cytomel