Biological and Pharmaceutical Bulletin
Online ISSN : 1347-5215
Print ISSN : 0918-6158
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Free Fatty Acid Receptors and Drug Discovery
Akira HirasawaTakafumi HaraSusumu KatsumaTetsuya AdachiGozoh Tsujimoto
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2008 Volume 31 Issue 10 Pages 1847-1851

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Abstract

Utilizing the human genome database, the recently developed G-protein-coupled receptor (GPCR) deorphanizing strategy successfully identified multiple receptors of free fatty acids (FFAs) and is proposed to play a critical role in a variety of physiologic homeostasis mechanisms. GPR40 and GPR120 are activated by medium- and long-chain FFAs, whereas GPR41 and GPR43 are activated by short-chain FFAs. GPR40, which is preferentially expressed in pancreatic β-cells, mediates insulin secretion. On the other hand, GPR120, which is abundantly expressed in the intestine, functions as a receptor for unsaturated long-chain FFAs and promotes the secretion of glucagon-like peptide-1 (GLP-1). In this review, we summarize the identification, structure, and pharmacology of the receptors and speculate on the respective physiologic roles that FFA receptor family members may play.

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© 2008 The Pharmaceutical Society of Japan
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