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80 Publications visible to you, out of a total of 80
Identification of the Consistently Altered Metabolic Targets in Human Hepatocellular Carcinoma

Abstract

Not specified

Authors: Zeribe Chike Nwosu, Dominik Andre Megger, Seddik Hammad, Barbara Sitek, Stephanie Roessler, Matthias Philip Ebert, Christoph Meyer, Steven Dooley

Date Published: 1st Sep 2017

Publication Type: Not specified

Insulin-controlled C/EBPα expression determines the impact of TGF-β on HNF4α transcription in hepatocytes

Abstract

Not specified

Authors: Rilu Feng, Carsten Sticht, Kejia Kan, Stefan Munker, MatthiasP. Ebert, Steven Dooley, Hong-Lei Weng

Date Published: 2022

Publication Type: Journal

Inverse agonist of ERRgamma reduces cannabinoid receptor type 1-mediated induction of fibrinogen synthesis in mice with a high-fat diet-intoxicated liver.

Abstract (Expand)

Upon liver intoxication with malnutrition or high-fat diet feeding, fibrinogen is synthesized by hepatocytes and secreted into the blood in human and mouse. Its primary function is to occlude blood … vessels upon damage and thereby stop excessive bleeding. High fibrinogen levels may contribute to the development of pathological thrombosis, which is one mechanism linking fatty liver disease with cardiovascular disease. Our previous results present ERRgamma as key regulator of hepatocytic fibrinogen gene expression in human. In a therapeutic approach, we now tested ERRgamma inverse agonist GSK5182 as regulator of fibrinogen levels in mouse hyperfibrinogenemia caused by diet-induced obesity and in mouse hepatocytes. ACEA, a CB1R agonist, up-regulated transcription of mouse fibrinogen via induction of ERRgamma, whereas knockdown of ERRgamma attenuated the effect of ACEA (10 microM) on fibrinogen expression in AML12 mouse hepatocytes. Deletion analyses of the mouse fibrinogen gamma (FGG) gene promoter and ChIP assays revealed binding sites for ERRgamma on the mouse FGG promoter. ACEA or adenovirus ERRgamma injection induced FGA, FGB and FGG mRNA and protein expression in mouse liver, while ERRgamma knockdown with Ad-shERRgamma attenuated ACEA-mediated induction of fibrinogen gene expression. Moreover, mice maintained on a high-fat diet (HFD) expressed higher levels of fibrinogen, whereas cannabinoid receptor type 1 (CB1R)-KO mice fed an HFD had nearly normal fibrinogen levels. Finally, GSK5182 (40 mg/kg) strongly inhibits the ACEA (10 mg/kg) or HFD-mediated induction of fibrinogen level in mice. Taken together, targeting ERRgamma with its inverse agonist GSK5182 represents a promising therapeutic strategy for ameliorating hyperfibrinogenemia.

Authors: Y. Zhang, D. K. Kim, Y. S. Jung, Y. H. Kim, Y. S. Lee, J. Kim, W. I. Jeong, I. K. Lee, S. J. Cho, S. Dooley, C. H. Lee, H. S. Choi

Date Published: 19th Jul 2018

Publication Type: Not specified

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