Antithymocyte Globulin (ATG)
Antithymocyte globulin is an immuno-suppressive agent that specifically destroys T lymphocytes. Abbreviated ATG. ATG is the gamma globulin fraction of antiserum from animals that have been immunized against human thymocytes. Uses of ATG include the treatment of transplant rejection, aplastic anemia, and other conditions in which immuno-suppression may be indicated.