α-Naphthoflavone

α-Naphthoflavone

CAT N°: 16924
Price:

From 43.00 36.55

The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that promotes the expression of phase I and II xenobiotic chemical metabolizing enzyme genes, including the cytochrome P450 (CYP) isoforms CYP1A1 and CYP1A2.{12907} ?-Naphthoflavone is a flavone that modulates xenobiotic metabolism at several points. It antagonizes AhR, blocking the expression of phase I and II genes at nanomolar concentrations, although it can agonize AhR at higher concentrations (10 µM).{27487,27488} ?-Naphthoflavone inhibits CYP19 (aromatase), CYP1A1, CYP1A2, and CYP1B1 (IC50s = 500, 60, 6, and 5 nM, respectively), whereas it activates CYP3A4 (Kd = 7.4 µM).{27489,27484,27486} Dietary ?-naphthoflavone can contribute to carcinogenesis in the presence of synthetic estrogens.{27485}

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