Document Detail


Role of GPR81 in lactate-mediated reduction of adipose lipolysis.
MedLine Citation:
PMID:  18952058     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Heavy exercise or oxygen deficit often links with higher levels of arterial lactate and lower levels of plasma free fatty acids (FFA). Treatment with lactate reduces circulating levels of FFA in vivo and lipolysis in adipose tissues in vitro. However, the underlying mechanism has remained unclear. Here we employ pharmacological and genetic approaches to show that GPR81, an orphan G-protein-coupled receptor with relatively restricted expression in the adipose tissues, functions as a receptor for lactate and can mediate an anti-lipolytic effect of lactate. GPR81 may thus function as a sensor of lactate that can modulate the FFA pool under exercise or conditions of oxygen deficit.
Authors:
Tian-Quan Cai; Ning Ren; Lan Jin; Kang Cheng; Shera Kash; Ruoping Chen; Samuel D Wright; Andrew K P Taggart; M Gerard Waters
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Publication Detail:
Type:  Journal Article     Date:  2008-10-24
Journal Detail:
Title:  Biochemical and biophysical research communications     Volume:  377     ISSN:  1090-2104     ISO Abbreviation:  Biochem. Biophys. Res. Commun.     Publication Date:  2008 Dec 
Date Detail:
Created Date:  2008-11-25     Completed Date:  2008-12-15     Revised Date:  2011-11-03    
Medline Journal Info:
Nlm Unique ID:  0372516     Medline TA:  Biochem Biophys Res Commun     Country:  United States    
Other Details:
Languages:  eng     Pagination:  987-91     Citation Subset:  IM    
Affiliation:
Department of Cardiovascular Diseases, Merck Research Laboratories, RY80T-A100, 126 East Lincoln Avenue, Rahway, NJ 07065, USA. tianquan_cai@merck.com
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MeSH Terms
Descriptor/Qualifier:
Adipose Tissue / drug effects,  metabolism*
Animals
CHO Cells
Cricetinae
Cricetulus
Fatty Acids, Nonesterified / metabolism*
Humans
Lactic Acid / metabolism*,  pharmacology
Ligands
Lipolysis* / drug effects,  genetics
Mice
Receptors, G-Protein-Coupled / agonists,  genetics,  physiology*
Receptors, Nicotinic / genetics,  physiology
Transfection
Chemical
Reg. No./Substance:
0/Fatty Acids, Nonesterified; 0/GPR81 protein, human; 0/HCAR2 protein, human; 0/Ligands; 0/Receptors, G-Protein-Coupled; 0/Receptors, Nicotinic; 50-21-5/Lactic Acid

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


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