Aminophylline was found to effect the early and total rosette-forming capacity of human thymus-dependent lymphocytes. This may be connected with an increase in the intracellular cyclic adenosine 3',5'-monophosphate level. Acetylcholine increases the proportion of early spontaneous rosettes, a phenomenon suggestive of a shift within the lymphocyte population toward a subpopulation of higher activity. The effect of acetylcholine is possibly mediated by an increase in the intracellular cyclic guanosine 3',5'-monophosphate level. Aminophylline affects only the early rosette-forming capacity of thymus-derived lymphocytes. Levamisole has no influence on either early or total rosette-forming capacity of normal lymphocytes. The results are suggestive of definite relationships between the functional state, activity and cyclic nucleotide system of thymus-dependent lymphocytes.
|Number of pages||8|
|Journal||Acta medica Academiae Scientiarum Hungaricae|
|Publication status||Published - dec. 1 1978|
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