NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,643 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.

A substance being studied in the treatment of some types of cancer. Ganetespib blocks the activity of a protein called HSP90. This prevents the breakdown of certain proteins inside cells. Blocking the activity of this protein in cancer cells may help keep the cells from dividing and cause them to die. It may also make cancer cells easier to kill with chemotherapy and radiation therapy. Ganetespib is a type of heat-shock protein inhibitor.