A Comparison of Total and Plasma Membrane Abundance of Transporters in Suspended, Plated, Sandwich-Cultured Human Hepatocytes Versus Human Liver Tissue Using Quantitative Targeted Proteomics and Cell Surface Biotinylation.
Journal
Drug metabolism and disposition: the biological fate of chemicals
ISSN: 1521-009X
Titre abrégé: Drug Metab Dispos
Pays: United States
ID NLM: 9421550
Informations de publication
Date de publication:
04 2019
04 2019
Historique:
received:
18
10
2018
accepted:
07
01
2019
pubmed:
10
1
2019
medline:
24
1
2020
entrez:
10
1
2019
Statut:
ppublish
Résumé
Suspended (SH), plated (PH), and sandwich-cultured hepatocytes (SCH) are commonly used models to predict in vivo transporter-mediated hepatic uptake (SH or PH) or biliary (SCH) clearance of drugs. When doing so, the total and the plasma membrane abundance (PMA) of transporter are assumed not to differ between hepatocytes and liver tissue (LT). This assumption has never been tested. In this study, we tested this assumption by measuring the total and PMA of the transporters in human hepatocyte models versus LT (total only) from which they were isolated. Total abundance of OATP1B1/2B1/1B3, OCT1, and OAT2 was not significantly different between the hepatocytes and LT. The same was true for the PMA of these transporters across the hepatocyte models. In contrast, total abundance of the sinusoidal efflux transporter, MRP3, and the canalicular efflux transporters, MRP2 and P-gp, was significantly greater (
Identifiants
pubmed: 30622164
pii: dmd.118.084988
doi: 10.1124/dmd.118.084988
doi:
Substances chimiques
Membrane Transport Proteins
0
Organic Anion Transporters
0
Types de publication
Comparative Study
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
350-357Informations de copyright
Copyright © 2019 by The American Society for Pharmacology and Experimental Therapeutics.