Selected Publication:

SHR Neuro Cancer Cardio Lipid Metab Microb

Trauner, M; Fickert, P; Wagner, M.
MDR3 (ABCB4) defects: a paradigm for the genetics of adult cholestatic syndromes.
Semin Liver Dis. 2007; 27(1):77-98 Doi: 10.1055/s-2006-960172 [OPEN ACCESS]
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Leading authors Med Uni Graz

Trauner Michael

Co-authors Med Uni Graz

Fickert Peter

Wagner Martin

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Abstract:

Because ATP-binding cassette (ABC) transporters are important for normal bile secretion, hereditary and acquired ABC transporter defects play a central role in the pathogenesis of cholestasis. Defects of the phospholipid export pump MDR3 ( ABCC4) result in impaired biliary excretion of phosphatidylcholine and a variety of cholestatic syndromes ranging from progressive familial intrahepatic cholestasis in neonates to biliary cirrhosis in adults. Moreover, MDR3 mutations predispose to cholestasis of pregnancy and drug-induced cholestasis. Because MDR2 (rodent orthologue of human MDR3) knockout mice develop sclerosing cholangitis, it is attractive to speculate that MDR3 defects could also play an important role in cholangiopathies in humans. Indeed, MDR3 variants could play a role as modifier gene in primary biliary cirrhosis and primary sclerosing cholangitis, but their exact role needs further clarification. Impaired biliary phosphatidylcholine excretion has also been reported in total parenteral nutrition-induced cholestasis and bile duct injury following liver transplantation, but a genetic basis for these findings remains to be explored. Several drugs for the treatment of cholestatic liver diseases target MDR3 expression and function, further underscoring the clinical significance of this transport system.

Find related publications in this database (using NLM MeSH Indexing)

ATP-Binding Cassette Transporters - genetics

Adult -

Animals -

Bile - metabolism

Biological Transport -

Cholestasis - diagnosis Cholestasis - genetics Cholestasis - therapy

Genetic Therapy -

Humans -

Liver - metabolism

Liver Transplantation -

Mutation -

P-Glycoproteins - genetics

Prognosis -

Sepsis - complications

Find related publications in this database (Keywords)

ABC transporters

bile acids

phospholipids

cholangitis

vanishing bile duct syndrome

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