Figure 3

(A) Expression of CYP1B1 by RT–PCR in a panel of breast cell lines after docetaxel treatment. Cells were exposed to 80 ng ml⁻¹ docetaxel or medium for 4 h before mRNA extraction. (B) Expression of CYP1B1 by RT–PCR in a panel of breast cell lines after TCDD treatment. Cells were treated with 3.22 ng ml⁻¹ TCDD or vehicle (toluene) for 4 h before mRNA extraction.