Figure 3. Quantitative PCR Analysis of CYP2B6 mRNA induction.
HPHs isolated from 4 donors (HL-#32, -#33, -#35, and -#37) were cultured in Williams’ E medium and treated with vehicle control (0.1% DMSO), CITCO (1 μM), and test compounds at 10 μM each (A) or multiple concentrations (B and C) for 24 hr. Real-time PCR was employed to detect CYP2B6 induction as described in Materials and Methods. CYP2B6 inducibility of each compound was normalized to that of CITCO. Correlation between hCAR1+A activation and CYP2B6 induction was depicted in D. Data are expressed as mean ± SD (n=3). Dashed line indicates 40% of CITCO-mediated CYP2B6 induction.