this inhibitory effect of pge2 on the lps-induced activation of macrophages could be reproduced by cyclic-adenosine-monophosphate ( camp ) agonists , such as isoproterenol and cholera toxin as well as by the camp analog dibutyryl-camp , suggesting a camp-mediated mechanism for the inhibitory effect of pge2 on macrophage activation by lps .
C0012054
camp
C0001455
camp