TABLE 2

P450 fold-induction in DMSO- and EtOH-treated human hepatocyte cultures compared to untreated cells

Values are average P450 mRNA induction ratios in response to 48-h treatment of 0.5% (v/v) DMSO and 90 mM EtOH in human hepatocyte cultures. The fold-induction is compared to untreated cells.


P450

DMSO

EtOH
CYP1A1 0.8 ± 0.22 0.9 ± 0.2
CYP1A2 1.53 ± 0.63 0.9 ± 0.3
CYP1B1 0.75 ± 0.26 0.7 ± 0.1*
CYP2A6 4.29 ± 1.37* 1.2 ± 0.3
CYP2A7 3.76 ± 0.87 1.7 ± 0.5
CYP2A13 2.15 ± 0.75 0.9 ± 0.7
CYP2B6 4.78 ± 2.32* 1.2 ± 0.4
CYP2C8 2.83 ± 1.45 1.2 ± 0.1
CYP2C9 1.46 ± 0.26* 0.8 ± 0.1
CYP2C18 0.86 ± 0.1 1.0 ± 0.1
CYP2C19 1.23 ± 0.14 1.0 ± 0.1
CYP2D6 0.83 ± 0.15 0.9 ± 0.1
CYP2E1 2.49 ± 0.83* 0.8 ± 0.2
CYP2F1 N.D. N.D.
CYP2J2 1.05 ± 0.13 0.9 ± 0.1
CYP2R1 0.72 ± 0.18 1.2 ± 0.2
CYP2S1 1.56 ± 0.94 1.1 ± 0.2
CYP2U1 1.34 ± 0.3 0.8 ± 0.1
CYP2W1 N.D. N.D.
CYP3A4 3.36 ± 1.31* 1.2 ± 0.1
CYP3A5 2.15 ± 0.45 0.8 ± 0.1
CYP3A7 1.59 ± 0.69 1.0 ± 0.2
CYP3A43
2.81 ± 0.85
1.0 ± 0.2
  • N.D., not determined.

  • * Significantly different from 1.0 (level in corresponding control cells), P < 0.05, using the distribution-free Wilcoxon paired t test.