Abstract:
:Inhibiting the decomposition of carbohydrates into glucose or promoting glucose conversion is considered to be an effective treatment for type 2 diabetes. Herein, a series of novel xanthone-triazole derivatives were designed, synthesized, and their α-glucosidase inhibitory activities and glucose uptake in HepG2 cells were investigated. Most of the compounds showed better inhibitory activities than the parental compound a (1,3-dihydroxyxanthone, IC50 = 160.8 μM) and 1-deoxynojirimycin (positive control, IC50 = 59.5 μM) towards α-glucosidase. Compound 5e was the most potent inhibitor, with IC50 value of 2.06 μM. The kinetics of enzyme inhibition showed that compounds 5e, 5g, 5h, 6c, 6d, 6g and 6h were noncompetitive inhibitors, and molecular docking results were consistent with the noncompetitive property that these compounds bind to allosteric sites away from the active site (Asp214, Glu276 and Asp349). On the other hand, the glucose uptake assays exhibited that compounds 5e, 6a, 6c and 7g displayed high activities in promoting the glucose uptake. The cytotoxicity assays showed that most compounds were low-toxic to human normal hepatocyte cell line (LO2). These novel xanthone triazole derivatives exhibited dual therapeutic effects of α-glucosidase inhibition and glucose uptake promotion, thus they could be use as antidiabetic agents for developing novel drugs against type 2 diabetes.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Ye GJ,Lan T,Huang ZX,Cheng XN,Cai CY,Ding SM,Xie ML,Wang Bdoi
10.1016/j.ejmech.2019.05.045subject
Has Abstractpub_date
2019-09-01 00:00:00pages
362-373eissn
0223-5234issn
1768-3254pii
S0223-5234(19)30455-6journal_volume
177pub_type
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