Research Article

PXR-Mediated Upregulation of CYP3A Expression by Herb Compound Praeruptorin C from Peucedanum praeruptorum Dunn

Figure 4

Effects of PC on the protein expression of CYP3A4 in LS174T cells. (a) LS174T cells were transfected with pSG5-hPXR expression plasmids for 6 h. The LS174T cells were treated with vehicle control (0.1% DMSO); 10 μM RIF; and 2.5, 10, and 40 μM PC for 72 h, respectively. The cell homogenates were subjected to western blot. (b) LS174T cells were untransfected with pSG5-hPXR expression plasmids for 6 h. The LS174T cells were treated with vehicle control (0.1% DMSO); 10 μM RIF; and 2.5, 10, and 40 μM PC for 72 h, respectively. The cell homogenates were subjected to western blot. The data were expressed as relative folds over vehicle controls. for comparison with the control groups. Values are expressed as mean ± S.E.M ( ).
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156574.fig.004b
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