gene expression profile
(jeen ek-SPREH-shun PROH-file)
Information about all of the genes in a cell or tissue that are making messenger RNA. Messenger RNA molecules carry the genetic information that a cell needs to make proteins. A gene expression profile may be used to help diagnose a disease or condition, such as cancer. It may also be used to help plan treatment, find out how well treatment is working, make a prognosis, or predict whether cancer will come back or spread to other parts of the body.