prolonged exposure of cells to either n6-r-phenylisopropyladenosine or 5'-n-ethylcarboxamidoadenosine was associated with a small but significant degree of morphological differentiation , comparable to that induced by dibutyryl camp , and therefore presumably related to the prolonged increase of intracellular camp levels elicited by the two adenosine agonists .
C0050789
5
C0001443
adenosine