Research Project
Grant-in-Aid for Scientific Research (C)
Simulation of human plasma concentrations of the teratogen thalidomide and its human metabolites is possible with a simplified physiologically-based pharmacokinetic model based on data obtained in mice with humanized liver. In vivo non-specific hepatic protein binding parameters of metabolically activated [14C]-5-hydroxythalidomide and subsequent metabolic activation in humanized liver mice can be analyzed by accelerator mass spectrometry. Human placental microsomal fractions showed detectable thalidomide 5-hydroxylation activities. Thalidomide significantly induced P450 3A4/3A5 and pregnane X receptor (PXR) mRNA levels 2- to 3-fold in human placental BeWo cells cultured with a modified medium. Thalidomide also significantly induced midazolam 1´-hydroxylation and thalidomide 5-hydroxylaion activities 3-fold. Taken together, activation of thalidomide to 5-hydroxythalidomide with autoinduction of P450 3A enzymes in human placentas, as well as livers, is suggested in vivo.
All 2017 2016 2015 2014 Other
All Int'l Joint Research (3 results) Journal Article (12 results) (of which Int'l Joint Research: 4 results, Peer Reviewed: 12 results, Acknowledgement Compliant: 9 results, Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 4 results, Invited: 10 results) Book (2 results) Remarks (6 results)
Chem. Res. Toxicol.
Volume: 30 Issue: 1 Pages: 53-60
10.1021/acs.chemrestox.6b00286
J. Toxicol. Sci.
Volume: 42
130006865647
Volume: 29 Issue: 12 Pages: 1279-1281
10.1021/acs.chemrestox.6b00136
Sci Rep.
Volume: 6 Issue: 1 Pages: 21419-21419
10.1038/srep21419
Chem. Res.Toxicol.
Volume: 28 Issue: 11 Pages: 2088-2090
10.1021/acs.chemrestox.5b00381
Drug Metab.Lett.
Volume: 28 Issue: 1 Pages: 268-278
10.2174/1872312809666150119104806
Xenobiotica
Volume: 46 Issue: 12 Pages: 1049-1055
10.3109/00498254.2016.1147102
Toxicol.Res.
Volume: 4 Issue: 1 Pages: 106-111
10.1039/c4tx00068d
Regul.Toxicol.Pharmacol.
Volume: 72 Issue: 1 Pages: 71-76
10.1016/j.yrtph.2015.03.010
Volume: 70 Issue: 2 Pages: 468-473
10.1016/j.yrtph.2014.08.010
Chem.Res.Toxicol
Volume: 27 Issue: 2 Pages: 304-307
10.1021/tx4004374
Volume: 27 Issue: 1 Pages: 146-157
10.1021/tx4004215
http://www.shoyaku.ac.jp/research/laboratory/doutai/teacher/96
http://orcid.org/0000-0002-1068-4261
http://www.scopus.com/authid/detail.uri?authorId=56049170400
http://www.researcherid.com/rid/A-6081-2011
http://www.shoyaku.ac.jp/labosite/doutai/2015/03/post_6.html