Abstract
We here demonstrate that (E)‐1‐(3‐aminophenyl)‐3‐(5‐bromo‐4‐hydroxy‐2‐methoxyphenyl)prop‐2‐en‐1‐one (SN159) is a novel peroxisome proliferator‐activated receptor (PPAR) partial agonist that improves insulin sensitivity. SN159 interacted directly with PPARα and PPARγ, which were confirmed by LanthaScreen ligand binding assay and molecular docking study. SN159 treatment leads to a significant improvement of insulin sensitivity, resulting in enhancing glucose uptake in muscle cells. SN159 stimulated adipogenic differentiation of 3T3‐L1 preadipocytes, however, the effects were much weaker than those of PPARγ agonist troglitazone. In parallel, SN159 increased weakly the transcriptional activities of PPARα/γ, compared to the positive control. Furthermore, PPARγ activation and adipogenic differentiation by troglitazone were significantly reduced by treatment with SN159, indicating that SN159 is a partial agonist of PPARs. SN159 was able to enhance fatty acid oxidation and glucose utilization through the dual activation of PPARα/γ. Taken together, these results suggest that SN159 is a novel PPAR partial agonist, which can be used as potential therapeutic agents against type 2 diabetes and related metabolic disorders by enhancing glucose and lipid metabolism.
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