Xelaglifam, a novel GPR40/FFAR1 agonist, exhibits enhanced β-arrestin recruitment and sustained glycemic control for type 2 diabetes

Autor: Jongmin Yoon, Don-Gil Lee, Haengjin Song, Dahae Hong, Ji Soo Park, Changhee Hong, Kyung Mi An, Jung Woo Lee, Joon-Tae Park, Hongchul Yoon, Jihoon Tak, Sang Geon Kim
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Biomedicine & Pharmacotherapy, Vol 177, Iss , Pp 117044- (2024)
Druh dokumentu: article
ISSN: 0753-3322
DOI: 10.1016/j.biopha.2024.117044
Popis: Xelaglifam, developed as a GPR40/FFAR1 agonist, induces glucose-dependent insulin secretion and reduces circulating glucose levels for Type 2 diabetes treatment. This study investigated the effects of Xelaglifam in comparison with Fasiglifam on the in vitro/in vivo anti-diabetic efficacy and selectivity, and the mechanistic basis. In vitro studies on downstream targets of Xelaglifam were performed in GPR40-expressing cells. Xelaglifam treatment exhibited dose-dependent effects, increasing inositol phosphate-1, Ca2+ mobilization, and β-arrestin recruitment (EC50: 0.76 nM, 20 nM, 68 nM), supporting its role in Gq protein-dependent and G-protein-independent mechanisms. Despite a lack of change in the cAMP pathway, the Xelaglifam-treated group demonstrated increased insulin secretion compared to Fasiglifam in HIT-T15 β cells under high glucose conditions. High doses of Xelaglifam (
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