[Effect of cholinergic stimulation on spontaneous lymphocyte adhesion in vitro]

With the help of spontaneous lymphocyte adhesion test it was demonstrated that acetylcholine and carbacholine enhanced the adhesion of lymphocytes. The enhancement revealed was completely abolished by a specific M-cholinergic blocker--atropine, but not N-cholinergic blocker--hexonium. Thus, the enhancement of spontaneous human lymphocyte adhesion by cholinergic stimulation is mediated by M-cholinoreceptors. It is suggested that the phenomenon revealed is mediated by the enhancement of cGMP intracellular levels after cholinergic stimulation.