Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 494741
Title Gene expression profiling in human precision cut liver slices in response to the FXR agonist obeticholic acid
Author(s) IJssennagger, Noortje; Janssen, A.W.F.; Milona, Alexandra; Ramos Pittol, J.M.; Hollman, D.A.A.; Mokry, Michal; Betzel, Bark; Berends, F.J.; Janssen, I.M.; Mil, S.W.C. van; Kersten, Sander
Source Journal of Hepatology (2016). - ISSN 0168-8278 - p. 1158 - 1166.
Department(s) Chair Nutrition Metabolism and Genomics
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Farnesoid X receptor - Gene expression profiling - Human liver slices - Obeticholic acid

Background & Aims: The bile acid-activated farnesoid X receptor (FXR) is a nuclear receptor regulating bile acid, glucose and cholesterol homeostasis. Obeticholic acid (OCA), a promising drug for the treatment of non-alcoholic steatohepatitis (NASH) and type 2 diabetes, activates FXR. Mouse studies demonstrated that FXR activation by OCA alters hepatic expression of many genes. However, no data are available on the effects of OCA in the human liver. Here we generated gene expression profiles in human precision cut liver slices (hPCLS) after treatment with OCA. Methods: hPCLS were incubated with OCA for 24. h. Wild-type or FXR-/- mice received OCA or vehicle by oral gavage for 7. days. Results: Transcriptomic analysis showed that well-known FXR target genes, including NR0B2 (SHP), ABCB11 (BSEP), SLC51A (OSTα) and SLC51B (OSTβ), and ABCB4 (MDR3) are regulated by OCA in hPCLS. Ingenuity pathway analysis confirmed that 'FXR/RXR activation' is the most significantly changed pathway upon OCA treatment. Comparison of gene expression profiles in hPCLS and mouse livers identified 18 common potential FXR targets. ChIP-sequencing in mouse liver confirmed FXR binding to IR1 sequences of Akap13, Cgnl1, Dyrk3, Pdia5, Ppp1r3b and Tbx6. Conclusions: Our study shows that hPCLS respond to OCA treatment by upregulating well-known FXR target genes, demonstrating its suitability to study FXR-mediated gene regulation. We identified six novel bona-fide FXR target genes in both mouse and human liver. Finally, we discuss a possible explanation for changes in high or low density lipoprotein observed in NASH and primary biliary cholangitis patients treated with OCA based on the genomic expression profile in hPCLS.

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