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5 Publications matching the given criteria: (Clear all filters)
Published year: 20165
Caveolin-1 in the regulation of cell metabolism: a cancer perspective.

Abstract (Expand)

Caveolin-1 (CAV1) is an oncogenic membrane protein associated with endocytosis, extracellular matrix organisation, cholesterol distribution, cell migration and signaling. Recent studies reveal that … CAV1 is involved in metabolic alterations - a critical strategy adopted by cancer cells to their survival advantage. Consequently, research findings suggest that CAV1, which is altered in several cancer types, influences tumour development or progression by controlling metabolism. Understanding the molecular interplay between CAV1 and metabolism could help uncover druggable metabolic targets or pathways of clinical relevance in cancer therapy. Here we review from a cancer perspective, the findings that CAV1 modulates cell metabolism with a focus on glycolysis, mitochondrial bioenergetics, glutaminolysis, fatty acid metabolism, and autophagy.

Authors: Z. C. Nwosu, M. P. Ebert, S. Dooley, C. Meyer

Date Published: 18th Nov 2016

Publication Type: Not specified

Creation of Three-Dimensional Liver Tissue Models from Experimental Images for Systems Medicine.

Abstract (Expand)

In this chapter, we illustrate how three-dimensional liver tissue models can be created from experimental image modalities by utilizing a well-established processing chain of experiments, microscopic … imaging, image processing, image analysis and model construction. We describe how key features of liver tissue architecture are quantified and translated into model parameterizations, and show how a systematic iteration of experiments and model simulations often leads to a better understanding of biological phenomena in systems biology and systems medicine.

Authors: S. Hoehme, A. Friebel, S. Hammad, D. Drasdo, J. G. Hengstler

Date Published: 11th Nov 2016

Publication Type: Not specified

Orphan nuclear receptor SHP regulates iron metabolism through inhibition of BMP6-mediated hepcidin expression.

Abstract (Expand)

Small heterodimer partner (SHP) is a transcriptional corepressor regulating diverse metabolic processes. Here, we show that SHP acts as an intrinsic negative regulator of iron homeostasis. SHP-deficient … mice maintained on a high-iron diet showed increased serum hepcidin levels, decreased expression of the iron exporter ferroportin as well as iron accumulation compared to WT mice. Conversely, overexpression of either SHP or AMP-activated protein kinase (AMPK), a metabolic sensor inducing SHP expression, suppressed BMP6-induced hepcidin expression. In addition, an inhibitory effect of AMPK activators metformin and AICAR on BMP6-mediated hepcidin gene expression was significantly attenuated by ablation of SHP expression. Interestingly, SHP physically interacted with SMAD1 and suppressed BMP6-mediated recruitment of the SMAD complex to the hepcidin gene promoter by inhibiting the formation of SMAD1 and SMAD4 complex. Finally, overexpression of SHP and metformin treatment of BMP6 stimulated mice substantially restored hepcidin expression and serum iron to baseline levels. These results reveal a previously unrecognized role for SHP in the transcriptional control of iron homeostasis.

Authors: D. K. Kim, Y. H. Kim, Y. S. Jung, K. S. Kim, J. H. Jeong, Y. S. Lee, J. M. Yuk, B. C. Oh, H. E. Choy, S. Dooley, M. U. Muckenthaler, C. H. Lee, H. S. Choi

Date Published: 1st Oct 2016

Publication Type: Not specified

Delta-Like Ligand 4 Modulates Liver Damage by Down-Regulating Chemokine Expression

Abstract

Not specified

Authors: Zhe Shen, Yan Liu, Bedair Dewidar, Junhao Hu, Ogyi Park, Teng Feng, Chengfu Xu, Chaohui Yu, Qi Li, Christoph Meyer, Iryna Ilkavets, Alexandra Müller, Carolin Stump-Guthier, Stefan Munker, Roman Liebe, Vincent Zimmer, Frank Lammert, Peter R. Mertens, Hai Li, Peter ten Dijke, Hellmut G. Augustin, Jun Li, Bin Gao, Matthias P. Ebert, Steven Dooley, Youming Li, Hong-Lei Weng

Date Published: 1st Jul 2016

Publication Type: Not specified

Evolving Insights on Metabolism, Autophagy, and Epigenetics in Liver Myofibroblasts.

Abstract (Expand)

Liver myofibroblasts (MFB) are crucial mediators of extracellular matrix (ECM) deposition in liver fibrosis. They arise mainly from hepatic stellate cells (HSCs) upon a process termed "activation." … To a lesser extent, and depending on the cause of liver damage, portal fibroblasts, mesothelial cells, and fibrocytes may also contribute to the MFB population. Targeting MFB to reduce liver fibrosis is currently an area of intense research. Unfortunately, a clog in the wheel of antifibrotic therapies is the fact that although MFB are known to mediate scar formation, and participate in liver inflammatory response, many of their molecular portraits are currently unknown. In this review, we discuss recent understanding of MFB in health and diseases, focusing specifically on three evolving research fields: metabolism, autophagy, and epigenetics. We have emphasized on therapeutic prospects where applicable and mentioned techniques for use in MFB studies. Subsequently, we highlighted uncharted territories in MFB research to help direct future efforts aimed at bridging gaps in current knowledge.

Authors: Z. C. Nwosu, H. Alborzinia, S. Wolfl, S. Dooley, Y. Liu

Date Published: 18th Jun 2016

Publication Type: Not specified

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