M A TAC Conjugated Pseudomonas EXO

**Semantic type:** Pharmacologic Substance

**Definition:** An immunotoxin consisting of the monoclonal antibody anti-Tac directed against the interleukin 2 receptor (also known as IL-2R or CD25) conjugated to a derivative of the pseudomonas exotoxin. M A Tac conjugated pseudomonas exo is cytotoxic against T lymphocytes that express IL-2R. (NCI04)