MicroRNA‐26a suppresses angiogenesis in human hepatocellular carcinoma by targeting hepatocyte growth factor‐cMet pathway

Xin Yang, Xiao‐Fei Zhang, Xu Lu, Hu‐Liang Jia, Lei Liang, Qiong‐Zhu Dong, Qing‐Hai Ye, Lun‐Xiu Qin – 21 November 2013 – MicroRNA (miR)‐26a can suppress tumor growth and metastasis of hepatocellular carcinoma (HCC). Since angiogenesis is important for tumor growth and metastasis, we investigated the possible roles of miR‐26a in tumor angiogenesis. Down‐regulation of miR‐26a was found to correlate with an increased angiogenic potential of HCC.

Left‐liver hypertrophy after therapeutic right‐liver radioembolization is substantial but less than after portal vein embolization

Benjamin Garlipp, Thierry Baere, Robert Damm, Romy Irmscher, Mark Buskirk, Patrick Stübs, Frederic Deschamps, Frank Meyer, Ricarda Seidensticker, Konrad Mohnike, Maciej Pech, Holger Amthauer, Hans Lippert, Jens Ricke, Max Seidensticker – 21 November 2013 – In patients with liver malignancies potentially amenable to curative extended right hepatectomy but insufficient size of the future liver remnant (FLR), portal vein embolization (PVE) of the tumor‐bearing liver is used to induce contralateral liver hypertrophy but leaves the tumor untreated.

Reduced adiponectin signaling due to weight gain results in nonalcoholic steatohepatitis through impaired mitochondrial biogenesis

Priya Handa, Bryan D. Maliken, James E. Nelson, Vicki Morgan‐Stevenson, Donald J. Messner, Barjinderjit K. Dhillon, Heather M. Klintworth, Mary Beauchamp, Matthew M. Yeh, Clinton T. Elfers, Christian L. Roth, Kris V. Kowdley – 21 November 2013 – Obesity and adiponectin depletion have been associated with the occurrence of nonalcoholic fatty liver disease (NAFLD). The goal of this study was to identify the relationship between weight gain, adiponectin signaling, and development of nonalcoholic steatohepatitis (NASH) in an obese, diabetic mouse model.

Liver‐primed CD8+ T cells suppress antiviral adaptive immunity through galectin‐9‐independent T‐Cell immunoglobulin and mucin 3 engagement of high‐mobility group box 1 in mice

Joseph S. Dolina, Thomas J. Braciale, Young S. Hahn – 20 November 2013 – The liver is a tolerogenic environment exploited by persistent infections, such as hepatitis B (HBV) and C (HCV) viruses. In a murine model of intravenous hepatotropic adenovirus infection, liver‐primed antiviral CD8+ T cells fail to produce proinflammatory cytokines and do not display cytolytic activity characteristic of effector CD8+ T cells generated by infection at an extrahepatic, that is, subcutaneous, site.

The portal inflammatory infiltrate and ductular reaction in human nonalcoholic fatty liver disease

Victoria L. Gadd, Richard Skoien, Elizabeth E. Powell, Kevin J. Fagan, Clay Winterford, Leigh Horsfall, Katharine Irvine, Andrew D. Clouston – 20 November 2013 – Although nonalcoholic fatty liver disease (NAFLD) is conventionally assessed histologically for lobular features of inflammation, development of portal fibrosis appears to be associated with disease progression. We investigated the composition of the portal inflammatory infiltrate and its relationship to the ductular reaction (DR), a second portal phenomenon implicated in fibrogenesis.

Obeticholic acid, a farnesoid X receptor agonist, improves portal hypertension by two distinct pathways in cirrhotic rats

Len Verbeke, Ricard Farre, Jonel Trebicka, Mina Komuta, Tania Roskams, Sabine Klein, Ingrid Vander Elst, Petra Windmolders, Tim Vanuytsel, Frederik Nevens, Wim Laleman – 20 November 2013 – The farnesoid X receptor (FXR) is a nuclear bile acid receptor involved in bile acid homeostasis, hepatic and intestinal inflammation, liver fibrosis, and cardiovascular disease.

Noninvasive in vivo magnetic resonance measures of glutathione synthesis in human and rat liver as an oxidative stress biomarker

John T. Skamarauskas, Fiona Oakley, Fiona E. Smith, Carlo Bawn, Michael Dunn, Daniel S. Vidler, Matthew Clemence, Peter G. Blain, Roy Taylor, Michael P. Gamcsik, Peter E. Thelwall – 16 November 2013 – Oxidative stress (OS) plays a central role in the progression of liver disease and in damage to liver by toxic xenobiotics. We have developed methods for noninvasive assessment of hepatic OS defenses by measuring flux through the glutathione (GSH) synthesis pathway. 13C‐labeled GSH is endogenously produced and detected by in vivo magnetic resonance after administration of [2‐13C]‐glycine.

Renoportal anastomosis for dual‐graft living donor liver transplantation using an artificial graft and a left renal vein–connected inferior vena cava cuff

Deok‐Bog Moon, Sung‐Gyu Lee, Jung‐Man Namkoong, Shin Hwang, Ki‐Hun Kim, Chul‐Soo Ahn, Tae‐Yong Ha, Gi‐Won Song, Dong‐Hwan Jung, Gil‐Chun Park, Yo‐Han Park, Hyung‐Woo Park, Bo‐Hyun Jung, Sung‐Hwa Kang – 15 November 2013

Role of toll‐like receptors in liver transplantation

Jessica Howell, Paul Gow, Peter Angus, Kumar Visvanathan – 15 November 2013 – Toll‐like receptors (TLRs) are pathogen recognition receptors that orchestrate the innate immune response and the subsequent adaptive immune response. TLRs can be triggered by exogenous ligands expressed by invading pathogens or by the release of endogenous ligands, such as that occurring through cellular injury during the transplantation process.

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