NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,547 terms related to cancer and medicine.

We offer a widget that you can add to your website to let users look up cancer-related terms. Get NCI’s Dictionary of Cancer Terms Widget.

gene expression profile
(jeen ek-SPREH-shun PROH-file)
A laboratory method that identifies all of the genes in a cell or tissue that are making messenger RNA. Messenger RNA molecules carry the genetic information that is needed to make proteins from the DNA in the nucleus of the cell to the cytoplasm where the proteins are made. A gene expression profile may be used to find and diagnose a disease or condition or to see how well the body responds to treatment.