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Int. J. Mol. Sci. 2016, 17(4), 450; doi:10.3390/ijms17040450

Nutritional Signaling via Free Fatty Acid Receptors

1
Department of Applied Biological Science, Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-0057, Japan
2
Department of Biological Chemistry, Graduate School of Pharmaceutical Science, Kyoto University, Kyoto 606-8501, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Kathleen Van Craenenbroeck
Received: 28 January 2016 / Revised: 7 March 2016 / Accepted: 17 March 2016 / Published: 25 March 2016
(This article belongs to the Collection G Protein-Coupled Receptor Signaling and Regulation)
View Full-Text   |   Download PDF [666 KB, uploaded 25 March 2016]   |  

Abstract

Excess energy is stored primarily as triglycerides, which are mobilized when demand for energy arises. Dysfunction of energy balance by excess food intake leads to metabolic diseases, such as obesity and diabetes. Free fatty acids (FFAs) provided by dietary fat are not only important nutrients, but also contribute key physiological functions via FFA receptor (FFAR)-mediated signaling molecules, which depend on FFAs’ carbon chain length and the ligand specificity of the receptors. Functional analyses have revealed that FFARs are critical for metabolic functions, such as peptide hormone secretion and inflammation, and contribute to energy homeostasis. In particular, recent studies have shown that the administration of selective agonists of G protein-coupled receptor (GPR) 40 and GPR120 improved glucose metabolism and systemic metabolic disorders. Furthermore, the anti-inflammation and energy metabolism effects of short chain FAs have been linked to the activation of GPR41 and GPR43. In this review, we summarize recent progress in research on FFAs and their physiological roles in the regulation of energy metabolism. View Full-Text
Keywords: FFAR; fatty acids; GPR120; GPR41; GPR43; GPR40 FFAR; fatty acids; GPR120; GPR41; GPR43; GPR40
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MDPI and ACS Style

Miyamoto, J.; Hasegawa, S.; Kasubuchi, M.; Ichimura, A.; Nakajima, A.; Kimura, I. Nutritional Signaling via Free Fatty Acid Receptors. Int. J. Mol. Sci. 2016, 17, 450.

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