Fig. 1. Effect of AhR ligands on adipose differentiation in 3T3-L1 cells. Cells were treated with 10 nM TCDD, 10 µM ß-naphthoflavone (BNF), or 10 µM -naphthoflavone (ANF) at the time of DEX and IBMX addition. The AhR ligands were dissolved in dimethylsulfoxide (DMSO) and control cells were given the same amounts (2 µl) of DMSO. The cultures were allowed to differentiate for 6 days. The state of adipose differentiation was measured by staining with oil red O.