Effect of geniposide on proliferation of pancreatic βcells and its mechanisms

VernacularTitle:京尼平苷调节胰腺β细胞增殖的细胞信号机制研究
Author: Zixuan LIU ; He XIAO ; Jianhui LIU
Publication Type:Journal Article
Keywords: cell proliferation; geniposide; glucagon-like peptide 1; type 2 diabetes mellitus
From: Military Medical Sciences 2014;(8):626-629
CountryChina
Language:Chinese
Abstract: Objective To explore the role of geniposide (Gen) in the proliferation of pancreatic βcells and the cell signaling transduction pathway .Methods After INS-1 pancreatic βcell line was treated with indicated concentrations of Gen for 24 hours, the number of viable cells was measured with MTT assay , and the cell proliferation was evaluated with BrdU labeled method .Additionally , Western blotting was used to probe the phosphorylation of Akt 308 and FoxO1 induced by Gen.Results The number of INS-1 cells and BrdU labeled positive cells was increased by Gen .Moreover, the phospho-rylation of Akt308 and FoxO1 was induced , and the phosphorylation of FoxO 1 induced by Gen could be prevented in the presence of LY294002, an inhibitor of PI3K kinase.Conclusion Gen induces the proliferation of INS-1 cells in a dose-dependent manner, and PI3K signal pathway plays an essential role in the phosphorylation of FoxO 1 induced by Gen.