Research Project
Grant-in-Aid for Scientific Research (C)
We demonstrated heterotropic cooperativity of human cytochrome P450 (P450) 3A4/5 by the teratogen thalidomide using a model substrate midazolam in various in vitro and in vivo models. Chimeric mice with humanized liver displayed enhanced midazolam clearance upon pre-treatment with orally administered thalidomide, presumably because of human P450 3A induction. Thalidomide enhanced levels of P450 3A4/2B6 mRNA, protein expression, and/or oxidation activity in human hepatocytes indirectly suggesting activation of gene transcription factors. Thalidomide and its human proportionate metabolite 5-hydroxythalidomide displayed significant modulation of coregulator interaction with CAR and PXR ligand-binding domains similar to established agonists for these receptors. These results collectively suggest that thalidomide could act as a ligand for PXR and CAR and cause enzyme induction. The possibilities of drug interactions during thalidomide therapy in humans should be evaluated further.
All 2014 2013 2012 2011 Other
All Journal Article (15 results) (of which Peer Reviewed: 15 results) Presentation (17 results) (of which Invited: 10 results) Book (1 results) Remarks (1 results)
Chem.Res.Toxicol
Volume: 27 Issue: 2 Pages: 304-307
10.1021/tx4004374
Chem. Res.Toxicol.
Volume: 27 Issue: 1 Pages: 146-157
10.1021/tx4004215
Xenobiotica
Volume: 27 Issue: 2 Pages: 146-157
10.3109/00498254.2013.836257
Chem.Res.Toxicol.
Volume: 26 Issue: 3 Pages: 486-489
10.1021/tx400008g
Regul.Toxicol.Pharmacol
Volume: 65 Issue: 3 Pages: 316-324
10.1016/j.yrtph.2013.01.008
Drug Metabolism and Pharmacokinetics
Volume: 28 Issue: 1 Pages: 38-43
10.2133/dmpk.DMPK-12-RV-089
130004463295
The Journal of Toxicological Sciences
Volume: 38 Issue: 3 Pages: 349-354
10.2131/jts.38.349
10031158900
Chem Res Toxicol
Volume: 25 Issue: 2 Pages: 274-276
10.1021/tx300009j
Basic Clin.Pharmacol.Toxicol
Volume: 110 Issue: 4 Pages: 405-408
10.1111/j.1742-7843.2011.00823.x
Clinica Chimica Acta
Volume: 413 Issue: 19-20 Pages: 1675-1677
10.1016/j.cca.2012.05.013
Biochem. Pharmacol.
Volume: 84 Issue: 12 Pages: 1691-1695
10.1016/j.bcp.2012.09.026
Volume: 37 Issue: 6 Pages: 1157-1164
10.2131/jts.37.1157
130004447016
Mice Chem Res Toxicol
Volume: 24 Issue: 3 Pages: 287-289
10.1021/tx200005g
Drug Metab. Dispos
Volume: 39 Issue: 4 Pages: 724-728
10.1124/dmd.110.036780
Brit.J.Pharmacol.
Volume: 163 Issue: 6 Pages: 1250-1262
10.1111/j.1476-5381.2011.01341.x
http://www.shoyaku.ac.jp/laboratory/doutai.htmlhttp://www.researcherid.com/rid/A-6081-2011