NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,018 terms related to cancer and medicine.
- viral vector
- listen (VY-rul VEK-ter)
- A type of virus used in cancer therapy. The virus is changed in the laboratory and cannot cause disease. Viral vectors may produce tumor antigens (proteins found on a tumor cell) to stimulate an antitumor immune response in the body. Viral vectors may also be used to carry genes that can change cancer cells back to normal cells.