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Trends Endocrinol Metab. 2005 Oct;16(8):362-7.

GPR30: a seven-transmembrane-spanning estrogen receptor that triggers EGF release.

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  • 1Department of Medicine, Rhode Island Hospital and Brown University School of Medicine, Providence, RI 02903, USA. edward_filardo@brown.edu

Abstract

Heterotrimeric G proteins and seven-transmembrane-spanning (7TM) receptors are implicated in rapid estrogen signaling. The orphan 7TM receptor GPR30 is linked to estrogen-mediated activation of adenylyl cyclase, release of epidermal growth factor (EGF)-related ligands, and specific estrogen binding. GPR30 acts independently of estrogen receptors, ERalpha and ERbeta, and probably functions as a heptahelical ER. 7TM receptors elicit signals that stimulate second messengers, and convey intracellular signals via EGF receptors. Identification of GPR30 as a Gs-coupled 7TM receptor that triggers release of heparin-binding EGF establishes its role in cell signaling cascades initiated by estrogens, and explains their capacity to activate second messengers and promote EGF-like effects. Thus, estrogen can signal by the same mechanism as various other hormones, through a specific 7TM receptor.

[PubMed - indexed for MEDLINE]
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