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NCI Dictionary of Cancer Terms


immunoconjugate  listen  (IH-myoo-noh-KON-jih-gut)

  An agent made up of an immune substance, such as a monoclonal antibody, that is chemically linked to a cell-killing substance such as a toxin, a radioactive molecule, or a drug. The antibody part of the immunoconjugate targets cancer cells and the linked substance may kill the cells or make them visible in the body. Some immunoconjugates are used to treat cancer or to help find cancer cells in the body.