Document Detail


Minireview: G protein-coupled estrogen receptor-1, GPER-1: its mechanism of action and role in female reproductive cancer, renal and vascular physiology.
MedLine Citation:
PMID:  22495674     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Using cDNA cloning strategies commonly employed for G protein-coupled receptors (GPCR), GPCR-30 (GPR30), was isolated from mammalian cells before knowledge of its cognate ligand. GPR30 is evolutionarily conserved throughout the vertebrates. A broad literature suggests that GPR30 is a Gs-coupled heptahelical transmembrane receptor that promotes specific binding of naturally occurring and man-made estrogens but not cortisol, progesterone, or testosterone. Its "pregenomic" signaling actions are manifested by plasma membrane-associated actions familiar to GPCR, namely, stimulation of adenylyl cyclase and Gβγ-subunit protein-dependent release of membrane-tethered heparan bound epidermal growth factor. These facts regarding its mechanism of action have led to the formal renaming of this receptor to its current functional designate, G protein-coupled estrogen receptor (ER) (GPER)-1. Further insight regarding its biochemical action and physiological functions in vertebrates is derived from receptor knockdown studies and the use of selective agonists/antagonists that discriminate GPER-1 from the nuclear steroid hormone receptors, ERα and ERβ. GPER-1-selective agents have linked GPER-1 to physiological and pathological events regulated by estrogen action, including, but not limited to, the central nervous, immune, renal, reproductive, and cardiovascular systems. Moreover, immunohistochemical studies have shown a positive association between GPER-1 expression and progression of female reproductive cancer, a relationship that is diametrically opposed from ER. Unlike ER knockout mice, GPER-1 knockout mice are fertile and show no overt reproductive anomalies. However, they do exhibit thymic atrophy, impaired glucose tolerance, and altered bone growth. Here, we discuss the role of GPER-1 in female reproductive cancers as well as renal and vascular physiology.
Authors:
Edward J Filardo; Peter Thomas
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Review     Date:  2012-04-11
Journal Detail:
Title:  Endocrinology     Volume:  153     ISSN:  1945-7170     ISO Abbreviation:  Endocrinology     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-06-25     Completed Date:  2012-09-20     Revised Date:  2013-04-16    
Medline Journal Info:
Nlm Unique ID:  0375040     Medline TA:  Endocrinology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2953-62     Citation Subset:  AIM; IM    
Affiliation:
Department of Medicine, Rhode Island Hospital and Brown University Medical School, 593 Eddy Street, Aldrich Building Room 708, Providence, Rhode Island 02903, USA. edward_filardo@brown.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Biopsy
Female
Gene Expression Regulation, Neoplastic*
Genital Neoplasms, Female / metabolism*
Humans
Kidney / blood supply*,  metabolism*
Ligands
Mice
Models, Biological
Models, Genetic
Receptor, Epidermal Growth Factor / metabolism
Receptors, Estrogen / metabolism*
Receptors, G-Protein-Coupled / metabolism*
Transcriptional Activation
Grant Support
ID/Acronym/Agency:
R01 CA119165/CA/NCI NIH HHS
Chemical
Reg. No./Substance:
0/GPER protein, human; 0/Ligands; 0/Receptors, Estrogen; 0/Receptors, G-Protein-Coupled; EC 2.7.10.1/Receptor, Epidermal Growth Factor

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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