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J Recept Signal Transduct Res. 2008;28(1-2):15-28. doi: 10.1080/10799890801941889 .

G protein-coupled receptors in and on the cell nucleus: a new signaling paradigm?

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Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, USA.


Signaling from internalizing and endosomal receptors has almost become a classic GPCR paradigm in the last several years. However, it has become clear in recent years that GPCRs also elicit signals when resident at other subcellular sites including the endoplasmic reticulum, Golgi apparatus, and the nucleus. In this review we discuss the nature, function, and trafficking of nuclear GPCR signaling complexes, as well as potential sources of endogenous and exogenous ligands. Finally, we pose a series of questions that will need to be answered in the coming years to confirm and extend this as a new paradigm for GPCR signaling.

[Indexed for MEDLINE]

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