Protein kinase a‐dependent pSer675‐β‐catenin, a novel signaling defect in a mouse model of congenital hepatic fibrosis

Carlo Spirli, Luigi Locatelli, Carola M. Morell, Romina Fiorotto, Stuart D. Morton, Massimiliano Cadamuro, Luca Fabris, Mario Strazzabosco – 6 June 2013 – Genetically determined loss of fibrocystin function causes congenital hepatic fibrosis (CHF), Caroli disease (CD), and autosomal recessive polycystic kidney disease (ARPKD). Cystic dysplasia of the intrahepatic bile ducts and progressive portal fibrosis characterize liver pathology in CHF/CD.

Sleep‐wake abnormalities in patients with cirrhosis

Sara Montagnese, Cristiano De Pittà, Michele De Rui, Michela Corrias, Matteo Turco, Carlo Merkel, Piero Amodio, Rodolfo Costa, Debra J. Skene, Angelo Gatta – 6 June 2013 – A considerable proportion of patients with cirrhosis exhibit insomnia, delayed sleep habits, and excessive daytime sleepiness. These have been variously attributed to hepatic encephalopathy and impaired hepatic melatonin metabolism, but the understanding of their pathophysiology remains limited and their treatment problematic. Sleep is regulated by the interaction of a homeostatic and a circadian process.

Liver iron modulates hepcidin expression during chronically elevated erythropoiesis in mice

Víctor Díaz, Elena Gammella, Stefania Recalcati, Paolo Santambrogio, Arianne Monge Naldi, Johannes Vogel, Max Gassmann, Gaetano Cairo – 6 June 2013 – The liver‐derived peptide hepcidin controls the balance between iron demand and iron supply. By inhibiting the iron export activity of ferroportin, hepcidin modulates iron absorption and delivery from the body's stores. The regulation of hepcidin, however, is not completely understood and includes a variety of different signals.

Human and experimental evidence supporting a role for osteopontin in alcoholic hepatitis

Oriol Morales‐Ibanez, Marlene Domínguez, Sung H. Ki, Miguel Marcos, Javier F. Chaves, Eric Nguyen‐Khac, Hakim Houchi, Silvia Affò, Pau Sancho‐Bru, José Altamirano, Javier Michelena, Juan Carlos García‐Pagán, Juan G. Abraldes, Vicente Arroyo, Juan Caballería, Francisco‐Javier Laso, Bin Gao, Ramón Bataller – 31 May 2013 – We identified, in the transcriptome analysis of patients with alcoholic hepatitis (AH), osteopontin (OPN) as one of the most up‐regulated genes. Here, we used a translational approach to investigate its pathogenic role.

Posttranscriptional destabilization of the liver‐specific long noncoding RNA HULC by the IGF2 mRNA‐binding protein 1 (IGF2BP1)

Monika Hämmerle, Tony Gutschner, Hannah Uckelmann, Sevim Ozgur, Evgenij Fiskin, Matthias Gross, Britta Skawran, Robert Geffers, Thomas Longerich, Kai Breuhahn, Peter Schirmacher, Georg Stoecklin, Sven Diederichs – 31 May 2013 – Selected long noncoding RNAs (lncRNAs) have been shown to play important roles in carcinogenesis. Although the cellular functions of these transcripts can be diverse, many lncRNAs regulate gene expression. In contrast, factors that control the expression of lncRNAs remain largely unknown.

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