Target: FFA4/GPR120

IC50: N/A

GSK137647A is potent and selective FFA4/GPR120 agonist with pEC50 values of 6.3, 6.2, and 6.1 at the human, mouse and rat receptor, respectively [1]. The free fatty acid receptor 4 (FFA4/GPR120), a member of the G protein-coupled receptor family, is a potential 7TM receptor involved in long-chain fatty acid-stimulated glucagon-like peptide-1 (GLP-1) secretion. FFA4 is highly expressed in the intestinal endocrine cell line STC-1 and the intestine [1]. GLP-1 regulates multiple physiological functions including eating behavior [2].

In vitro: GSK137647A (50 μM) induced a concentration-dependent increase in glucose (25 mM)-stimulated insulin secretion in MIN6 mouse insulinoma cell line [1]. In addition, GSK137647A (100 μM) induced a modest increase in GLP-1 secretion in the human intestinal cell line NCI-H716. Moreover, GSK137647A induced intracellular calcium accumulation in U2OS cells [1].

In vivo: GSK137647A (50 μM) induced active GLP-1 release by mouse circumvallate papillae (CVPs) [2].

References:
1.  Sparks SM, Chen G, Collins JL, Danger D, Dock ST, Jayawickreme C, et al. Identification of diarylsulfonamides as agonists of the free fatty acid receptor 4 (FFA4/GPR120). Bioorg Med Chem Lett. 2014;24(14):3100-3.
2.  Martin C, Passilly-Degrace P, Chevrot M, Ancel D, Sparks SM, Drucker DJ, et al. Lipid-mediated release of GLP-1 by mouse taste buds from circumvallate papillae: putative involvement of GPR120 and impact on taste sensitivity. J Lipid Res. 2012;53(11):2256-65.