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87 Publications visible to you, out of a total of 87
Orphan nuclear receptor ERRγ is a key regulator of human fibrinogen gene expression

Abstract

Not specified

Authors: Yaochen Zhang, Don-Kyu Kim, Yan Lu, Yoon Seok Jung, Ji-min Lee, Young-Hoon Kim, Yong Soo Lee, Jina Kim, Bedair Dewidar, Won-IL Jeong, In-Kyu Lee, Sung Jin Cho, Steven Dooley, Chul-Ho Lee, Xiaoying Li, Hueng-Sik Choi

Date Published: 27th Jul 2017

Publication Type: Not specified

Computational modelling of Hedgehog signalling in liver regeneration

Abstract (Expand)

Organ regeneration is a very complex process that includes not only the reconstruction of organ mass but also the reorganisation of homeostatic capabilities. This especially applies for the liver, which … performs a variety of metabolic functions. In the last decade, morphogenic pathways such as the Wnt/β-Catenin and Hedgehog signalling pathways have been revealed to orchestrate liver regeneration as well as metabolism. Mathematical models have been successfully applied to liver regeneration, but these have not integrated the Hedgehog signalling pathway. In this review it is tried to compile features of Hh signalling in liver regeneration which can be integrated into liver regeneration modeling.

Author: Madlen Matz-Soja

Date Published: 1st Jul 2017

Publication Type: Not specified

Conditional loss of hepatocellular Hedgehog signaling in female mice leads to the persistence of hepatic steroidogenesis, androgenization and infertility

Abstract (Expand)

The Hedgehog signaling pathway is known to be involved in embryogenesis, tissue remodeling, and carcinogenesis. Because of its involvement in carcinogenesis, it seems an interesting target for cancer … therapy. Indeed, Sonidegib, an approved inhibitor of the Hedgehog receptor Smoothened (Smo), is highly active against diverse carcinomas, but its use is also reported to be associated with several systemic side effects. Our former work in adult mice demonstrated hepatic Hedgehog signaling to play a key role in the insulin-like growth factor axis and lipid metabolism. The current work using mice with an embryonic and hepatocyte-specific Smo deletion describes an adverse impact of the hepatic Hedgehog pathway on female fertility. In female SAC-KO mice, we detected androgenization characterized by a 3.3-fold increase in testosterone at 12 weeks of age based on an impressive induction of steroidogenic gene expression in hepatocytes, but not in the classic steroidogenic organs (ovary and adrenal gland). Along with the elevated level of testosterone, the female SAC-KO mice showed infertility characterized by juvenile reproductive organs and acyclicity. The endocrine and reproductive alterations resembled polycystic ovarian syndrome and could be confirmed in a second mouse model with conditional deletion of Smo at 8 weeks of age after an extended period of 8 months. We conclude that the down-regulation of hepatic Hedgehog signaling leads to an impaired hormonal balance by the induction of steroidogenesis in the liver. These effects of Hedgehog signaling inhibition should be considered when using Hedgehog inhibitors as anti-cancer drugs.

Authors: Christiane Rennert, Franziska Eplinius, Ute Hofmann, Janina Johänning, Franziska Rolfs, Wolfgang Schmidt-Heck, Reinhardt Guthke, Rolf Gebhardt, Albert M. Ricken, Madlen Matz-Soja

Date Published: 30th May 2017

Publication Type: Not specified

Robust detection and segmentation of cell nuclei in biomedical images based on a computational topology framework

Abstract

Not specified

Authors: Rodrigo Rojas-Moraleda, Wei Xiong, Niels Halama, Katja Breitkopf-Heinlein, Steven Dooley, Luis Salinas, Dieter W. Heermann, Nektarios A. Valous

Date Published: 1st May 2017

Publication Type: Not specified

Quantification of substrate and cellular strains in stretchable 3D cell cultures: an experimental and computational framework

Abstract

Not specified

Authors: P. GONZÁLEZ-AVALOS, M. MÜRNSEER, J. DEEG, A. BACHMANN, J. SPATZ, S. DOOLEY, R. EILS, E. GLADILIN

Date Published: 1st May 2017

Publication Type: Not specified

Global Transcriptional Response of Human Liver Cells to Ethanol Stress of Different Strength Reveals Hormetic Behavior

Abstract

Not specified

Authors: Wolfgang Schmidt-Heck, Eva C. Wönne, Thomas Hiller, Uwe Menzel, Dirk Koczan, Georg Damm, Daniel Seehofer, Fanny Knöspel, Nora Freyer, Reinhard Guthke, Steven Dooley, Katrin Zeilinger

Date Published: 1st May 2017

Publication Type: Not specified

Quantitative and integrative analysis of paracrine hepatocyte activation by nonparenchymal cells upon lipopolysaccharide induction

Abstract

Not specified

Authors: Katharina Beuke, Frank A. Schildberg, Federico Pinna, Ute Albrecht, Roman Liebe, Michaela Bissinger, Peter Schirmacher, Steven Dooley, Johannes G. Bode, Percy A. Knolle, Ursula Kummer, Kai Breuhahn, Sven Sahle

Date Published: 1st Mar 2017

Publication Type: Not specified

Hepatocyte-specific Smad7 deletion accelerates DEN-induced HCC via activation of STAT3 signaling in mice

Abstract

Not specified

Authors: T Feng, J Dzieran, X Yuan, A Dropmann, T Maass, A Teufel, S Marhenke, T Gaiser, F Rückert, I Kleiter, S Kanzler, M P Ebert, A Vogel, P ten Dijke, S Dooley, N M Meindl-Beinker

Date Published: 2017

Publication Type: Not specified

Transforming Growth Factor β1 (TGF-β1) Activates Hepcidin mRNA Expression in Hepatocytes

Abstract

Not specified

Authors: Simeng Chen, Teng Feng, Maja Vujić Spasić, Sandro Altamura, Katja Breitkopf-Heinlein, Jutta Altenöder, Thomas S. Weiss, Steven Dooley, Martina U. Muckenthaler

Date Published: 17th Jun 2016

Publication Type: Not specified

TGF-β1 and TGF-β2 abundance in liver diseases of mice and men

Abstract

Not specified

Authors: Anne Dropmann, Tatjana Dediulia, Katja Breitkopf-Heinlein, Hanna Korhonen, Michel Janicot, Susanne N. Weber, Maria Thomas, Albrecht Piiper, Esther Bertran, Isabel Fabregat, Kerstin Abshagen, Jochen Hess, Peter Angel, Cédric Coulouarn, Steven Dooley, Nadja M. Meindl-Beinker

Date Published: 12th Apr 2016

Publication Type: Not specified

Identification of miRNA148a-3p as a novel non-invasive potential biomarker for ACLF

Abstract

Not specified

Author: M. TESSENYI, S.N. WEBER, M.C. REICHERT, S.C. KARATAYLI, R.A. HALL, S. QIAO, U. BOEHM, T. BRUNS, S. DOOLEY, F. LAMMERT, E. KARATAYLI

Date Published: No date defined

Publication Type: Journal

Fibroblast growth factor 21 response in a preclinical alcohol model of acute-on-chronic liver injury

Abstract

Not specified

Author: G. Christidis, E. Karatayli1, R.A. Hall, S.N. Weber, M.C. Reichert, M. Hohl, S. Qiao, U. Boehm, D. Lütjohann, F. Lammert, S.C. Karatayli

Date Published: No date defined

Publication Type: Journal

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