Figure 2.
Scopolin exerts its anti-lipogenic activity via SIRT1 in HepG2 cells. Cells were exposed to oleic acid (1 mM), scopolin (100 μM), and SIRT1-specific inhibitor EX-527 (20 μM) for 24 hr. (A) Oil-Red O staining of cells with different treatments. Images are representative of at least three independent experiments. Original magnification 400x. (B) Catalytic activity of SIRT1 in HepG2 cells. (C) The expression of lipogenic-related genes was determined by RT-PCR and normalized to that of GAPDH. The full-length gels are presented in Supplementary Fig 1. Data means from three independent experiments. Different letters indicate statistical significance, p < 0.05.