Article Publish Status: FREE
Abstract Title:

Delphinidin Reduces Glucose Uptake in Mice Jejunal Tissue and Human Intestinal Cells Lines through FFA1/GPR40.

Abstract Source:

Int J Mol Sci. 2017 Apr 5 ;18(4). Epub 2017 Apr 5. PMID: 28379159

Abstract Author(s):

Jorge Hidalgo, Stefanie Teuber, Francisco J Morera, Camila Ojeda, Carlos A Flores, María A Hidalgo, Lucía Núñez, Carlos Villalobos, Rafael A Burgos

Article Affiliation:

Jorge Hidalgo


Anthocyanins are pigments with antihyperglycemic properties, and they are potential candidates for developing functional foods for the therapy or prevention of Diabetes mellitus type 2 (DM2). The mechanism of these beneficial effects of anthocyanins are, however, hard to explain, given their very low bioavailability due to poor intestinal absorption. We propose that free fatty acid receptor 1 (FFA1, also named GPR40), is involved in an inhibitory effect of the anthocyanidin delphinidin over intestinal glucose absorption. We show the direct effects of delphinidin on the intestine using jejunum samples from RF/J mice, and the human intestinal cell lines HT-29, Caco-2, and NCM460. By the use of specific pharmacological antagonists, we determined that delphinidin inhibits glucose absorption in both mouse jejunum and a human enterocytic cell line in a FFA1-dependent manner. Delphinidin also affects the function of sodium-glucose cotransporter 1 (SGLT1). Intracellular signaling after FFA1 activation involved cAMP increase and cytosolic Caoscillations originated from intracellular Castores and were followed by store-operated Caentry. Taken together, our results suggest a new GPR-40 mediated local mechanism of action for delphinidin over intestinal cells that may in part explain its antidiabetic effect. These findings are promising for the search for new prevention and pharmacological treatment strategies for DM2 management.

Study Type : Human In Vitro, In Vitro Study

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