Adeno‐associated virus gene repair corrects a mouse model of hereditary tyrosinemia in vivo

Nicole K. Paulk, Karsten Wursthorn, Zhongya Wang, Milton J. Finegold, Mark A. Kay, Markus Grompe – 26 March 2010 – Adeno‐associated virus (AAV) vectors are ideal for performing gene repair due to their ability to target multiple different genomic loci, low immunogenicity, capability to achieve targeted and stable expression through integration, and low mutagenic and oncogenic potential. However, many handicaps to gene repair therapy remain. Most notable is the low frequency of correction in vivo. To date, this frequency is too low to be of therapeutic value for any disease.

Induction of avian musculoaponeurotic fibrosarcoma proteins by toxic bile acid inhibits expression of glutathione synthetic enzymes and contributes to cholestatic liver injury in mice

Heping Yang, Kwangsuk Ko, Meng Xia, Tony W.H. Li, Pilsoo Oh, Jiaping Li, Shelly C. Lu – 26 March 2010 – We previously showed that hepatic expression of glutathione (GSH) synthetic enzymes and GSH levels fell 2 weeks after bile duct ligation (BDL) in mice. This correlated with a switch in nuclear anti‐oxidant response element (ARE) binding activity from nuclear factor erythroid 2–related factor 2 (Nrf2) to c–avian musculoaponeurotic fibrosarcoma (c‐Maf)/V‐maf musculoaponeurotic fibrosarcoma oncogene homolog G (MafG).

Effectiveness of hepatitis C treatment with pegylated interferon and ribavirin in urban minority patients

Paul Feuerstadt, Ari L. Bunim, Heriberto Garcia, Jordan J. Karlitz, Hatef Massoumi, Amar J. Thosani, Andrew Pellecchia, Allan W. Wolkoff, Paul J. Gaglio, John F. Reinus – 26 March 2010 – Randomized controlled trials of hepatitis C virus (HCV) therapy with pegylated interferon and ribavirin have demonstrated sustained viral response rates (SVRs) of 54%‐63% (efficacy). Treatment results in clinical practice (effectiveness) may not be equivalent.

Homozygosity for the patatin‐like phospholipase‐3/adiponutrin I148M polymorphism influences liver fibrosis in patients with nonalcoholic fatty liver disease

Luca Valenti, Ahmad Al‐Serri, Ann K. Daly, Enrico Galmozzi, Raffaela Rametta, Paola Dongiovanni, Valerio Nobili, Enrico Mozzi, Giancarlo Roviaro, Ester Vanni, Elisabetta Bugianesi, Marco Maggioni, Anna Ludovica Fracanzani, Silvia Fargion, Christopher P.

CXC chemokine ligand 4 (Cxcl4) is a platelet‐derived mediator of experimental liver fibrosis

Mirko Moreno Zaldivar, Katrin Pauels, Philipp von Hundelshausen, Marie‐Luise Berres, Petra Schmitz, Jörg Bornemann, M. Anna Kowalska, Nikolaus Gassler, Konrad L. Streetz, Ralf Weiskirchen, Christian Trautwein, Christian Weber, Hermann E. Wasmuth – 26 March 2010 – Liver fibrosis is a major cause of morbidity and mortality worldwide. Platelets are involved in liver damage, but the underlying molecular mechanisms remain elusive. Here, we investigate the platelet‐derived chemokine (C‐X‐C motif) ligand 4 (CXCL4) as a molecular mediator of fibrotic liver damage.

Notch signaling regulates formation of the three‐dimensional architecture of intrahepatic bile ducts in mice

Erin E. Sparks, Kari A. Huppert, Melanie A. Brown, M. Kay Washington, Stacey S. Huppert – 26 March 2010 – Alagille syndrome, a chronic hepatobiliary disease, is characterized by paucity of intrahepatic bile ducts (IHBDs). To determine the impact of Notch signaling specifically on IHBD arborization, we studied the influence of both chronic gain and loss of Notch function on the intact three‐dimensional IHBD structure using a series of mutant mouse models and a resin casting method.

Interplay of hepatic and myeloid signal transducer and activator of transcription 3 in facilitating liver regeneration via tempering innate immunity

Hua Wang, Ogyi Park, Fouad Lafdil, Kezhen Shen, Norio Horiguchi, Shi Yin, Xin‐Yuan Fu, George Kunos, Bin Gao – 26 March 2010 – Liver regeneration triggered by two‐thirds partial hepatectomy is accompanied by elevated hepatic levels of endotoxin, which contributes to the regenerative process, but liver inflammation and apoptosis remain paradoxically limited.

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