significant inhibition of baseline ( unstimulated ) t-pa and pai-1 secretion was observed in response to several agents which , when added exogenously , cause increased intracellular camp : cholera toxin , 1-methyl-3-isobutylxanthine ( mix ) , dibutyryl-camp , and prostaglandin e1 .
C0001455
camp
C0012054
dibutyryl-camp