an increase in adenosine 3',5'-monophosphate ( cyclic amp ) in rat mast cells , achieved by stimulating the cells with prostaglandin e ( 1 ) , by preventing cyclic amp breakdown with aminophylline , or by adding exogenous dibutyryl cyclic amp , prevented complement-mediated cytolysis as assessed by both histamine release and vital dye exclusion .
C0001455
cyclic amp
C0012054
dibutyryl cyclic amp