PR-

Definition / meaning of PR-

Describes cells that do not have a protein to which the hormone progesterone will bind. Cancer cells that are PR- do not need progesterone to grow, and usually do not stop growing when treated with hormones that block progesterone from binding. Also called progesterone receptor negative.

Listed under:

Find More About 'PR-'

Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

Leave a Comment

*