Effects of NB-598 and Ro 48-8071 treatments on sterol biosynthesis in HepG2
cells. A and B, HepG2 cells were incubated for 24 h with medium containing
0.1% DMSO, 30 μM rifampicin (Rif), or 0.1 to 10 μM NB-598 (A) or with
0.1% DMSO (0, 0), 10 μM Ro 48-8071, 0.1 μM NB-598, or Ro 48-8071 and
NB-598 in combination (B). After treatment and metabolic labeling with
[14C]MVA, cells were harvested for evaluation of nonsaponifiable
lipid contents by thin-layer chromatography and autoradiography as described
under Materials and Methods.