NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,777 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

tremelimumab
(treh-meh-LIM-yoo-mab)
A substance being studied in the treatment of some types of cancer. Tremelimumab binds to a protein called CTLA-4, which is found on the surface of T cells (a type of white blood cell). It may block CTLA-4 and help the immune system kill cancer cells. Tremelimumab is a type of monoclonal antibody and a type of immunomodulatory agent.