Document Detail


Interactions of cationic drugs and cardiac glycosides at the hepatic uptake level: studies in the rat in vivo, isolated perfused rat liver, isolated rat hepatocytes and oocytes expressing oatp2.
MedLine Citation:
PMID:  12214846     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This paper deals with a crucial mechanism for interaction of basic drugs and cardiac glycosides at the hepatic uptake level. Available literature data is provided and new material is presented to picture the differential transport inhibition of bulky (type2) cationic drugs by a number of cardiac glycosides in rat liver. It is shown that the so called organic anion transporting peptide 2 (oatp2) is the likely interaction site: differential inhibition patterns as observed in oocytes expressing oatp2, could be clearly identified also in isolated rat hepatocytes, isolated perfused rat liver and the rat in vivo. The anticipation of transport interactions at the hepatic clearance level should be based on data on the relative affinities of interacting substrates for the transport systems involved along with knowledge on the pharmacokinetics of these agents as well as the chosen dose regimen in the studied species. This review highlights the importance of multispecific tranporter systems such as OATP, accommodating a broad spectrum of organic compounds of various charge, implying potential transport interactions that can affect body distribution and organ clearance.
Authors:
Dirk K F Meijer; Jessica E van Monffoort
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Publication Detail:
Type:  In Vitro; Journal Article    
Journal Detail:
Title:  Archives of pharmacal research     Volume:  25     ISSN:  0253-6269     ISO Abbreviation:  Arch. Pharm. Res.     Publication Date:  2002 Aug 
Date Detail:
Created Date:  2002-09-06     Completed Date:  2003-03-18     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8000036     Medline TA:  Arch Pharm Res     Country:  Korea (South)    
Other Details:
Languages:  eng     Pagination:  397-415     Citation Subset:  IM    
Affiliation:
Department of Pharmacokinetics and Drug Delivery, Groningen University Institute of Drug Exploration, The Netherlands. D.K.F.Meijer@farm.rug.nl
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MeSH Terms
Descriptor/Qualifier:
Animals
Bile / metabolism
Cardiac Glycosides / metabolism*,  pharmacology*
Cations
Digitoxin / pharmacology
Drug Interactions
Hepatocytes / drug effects,  enzymology,  metabolism*
Kinetics
Liver / drug effects,  enzymology,  metabolism*
Male
Oocytes / drug effects,  metabolism*
Organic Anion Transport Polypeptide C / biosynthesis,  genetics,  metabolism*
Ouabain / pharmacology
Rats
Rats, Wistar
Sodium-Potassium-Exchanging ATPase / metabolism
Strophanthins / pharmacology
Tubocurarine / metabolism
Xenopus laevis
Chemical
Reg. No./Substance:
0/Cardiac Glycosides; 0/Cations; 0/Organic Anion Transport Polypeptide C; 0/Strophanthins; 33279-57-1/K-strophanthoside; 57-95-4/Tubocurarine; 630-60-4/Ouabain; 71-63-6/Digitoxin; EC 3.6.3.9/Sodium-Potassium-Exchanging ATPase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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