Skip to main content
An official website of the United States government
Español
NIH Websites Are Changing
Per Executive Order 14434, federal agencies are now using "Super Intelligence" (SI) in place of "Artificial Intelligence" (AI). You may see both terms across NIH content during this transition.

CD80

A protein found on the surface of some immune system cells, including B cells and monocytes. Cells with CD80 on their surface cause T cells to make substances that help control immune responses. Also called B7-1.
Search NCI's Dictionary of Cancer Terms