Abstract
The immunomodulating 2-cyanaziridine derivatives BM 12.531 (azimexone) and BM 41.332 have no effects on the total amount of T-lymphocytes in the spleen of mice but ingrease dose-dependently the percentage of Ly1−-, 2+, 3+ T-lymphocytes (killer/suppressor) and decrease the percentage of Ly1+, 2−-, (helper) cells. These investigations were carried out by means of specific monoclonal antibodies and fluoreqcence-activated cell sorting. The increase in Ly2+-cells is mainly due to increased suppressor activity.