cAMP is cyclic adenosine 3',5'-monophosphate; a prototypical second messenger involved in intracellular communication
Cyclic AMP is metabolized by a phosphodiesterase. This phosphodiesterase is inhibited by methylxanthines such as caffeine and theophylline; consequently, these compounds augment hormonal and transmitter effects mediated via cAMP.
Mechanism of Action
In most cases, cyclic AMP functions by activating the isoforms of cyclic AMP–dependent protein kinase (PKA).
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