[Histochemical investigations of the intracellular localization of adenylate cyclase activity after mitogenic or beta-adrenergic stimulation of T-lymphocytes of the mouse].

: The role of AC at the beginning of an immune response is not fully understood until now. Using the specific substrate AMP-PNP we could show AC-activity in ConA-stimulated murine spleen lymphocytes histochemically. In contrast to beta-adrenergic stimulation (by Isoproterenol) ConA-induced AC-activity was found not only at the cell membrane and the nuclear membrane but also at some structures of the Golgi apparatus of the cells. The difference in AC-activity after beta-adrenergic or mitogenic stimulation is discussed.