Journal
MOLECULAR AND CELLULAR ENDOCRINOLOGY
Volume 353, Issue 1-2, Pages 3-9Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.mce.2011.10.034
Keywords
Adenylyl cyclase; Biosensor; cAMP; Phosphodiesterase; Plasticity; Signal transduction
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Signalling through adenosine 3'5' monophosphate (cAMP) is known to be important in virtually every cell. The mapping of the human genome over the past two decades has revealed an unexpected complexity of cAMP signalling, which is shared from insects to mammals. A more recent technical advance is the ability to monitor intracellular cAMP levels at subcellular spatial resolution within the time-domains of fast biochemical reactions. Thus, new light has been shed on old paradigms, some of which turn out to be multiple new ones. The novel aspects of cAMP signalling are highlighted here: (1) agonist induced plasticity - showing how the repertory of cAMP signalling genes supports homeostatic adaptation; (2) sustained cAMP signalling after endocytosis; (3) pre-assembled receptor-Gs-adenylyl cyclase complexes. Finally, a hypothetical model of propagating neuronal cAMP signals travelling form dendrites to the cell body is presented. (C) 2011 Elsevier Ireland Ltd. All rights reserved.
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