Sphingosine kinase 1 promotes liver fibrosis by preventing miR‐19b‐3p‐mediated inhibition of CCR2

Tian Lan, Changzheng Li, Guizhi Yang, Yue Sun, Lihang Zhuang, Yitao Ou, Hui Li, Genshu Wang, Tatiana Kisseleva, David Brenner, Jiao Guo – 23 March 2018 – Chronic liver disease mediated by activation of hepatic stellate cells (HSCs) and Kupffer cells (KCs) leads to liver fibrosis. Here, we aimed to investigate the molecular mechanism and define the cell type involved in mediating the sphingosine kinase (SphK)1‐dependent effect on liver fibrosis. The levels of expression and activity of SphK1 were significantly increased in fibrotic livers compared with the normal livers in human.

Liver‐enriched transcription factor expression relates to chronic hepatic failure in humans

Jorge Guzman‐Lepe, Eduardo Cervantes‐Alvarez, Alexandra Collin de l'Hortet, Yang Wang, Wendy M. Mars, Yoshinao Oda, Yuki Bekki, Masahiro Shimokawa, Huanlin Wang, Tomoharu Yoshizumi, Yoshihiko Maehara, Aaron Bell, Ira J. Fox, Kazuki Takeishi, Alejandro Soto‐Gutierrez – 23 March 2018 – The mechanisms by which the liver fails in end‐stage liver disease remain elusive. Disruption of the transcription factor network in hepatocytes has been suggested to mediate terminal liver failure in animals. However, this hypothesis remains unexplored in human subjects.

Link between gut‐microbiome derived metabolite and shared gene‐effects with hepatic steatosis and fibrosis in NAFLD

Cyrielle Caussy, Cynthia Hsu, Min‐Tzu Lo, Amy Liu, Ricki Bettencourt, Veeral H. Ajmera, Shirin Bassirian, Jonathan Hooker, Ethan Sy, Lisa Richards, Nicholas Schork, Bernd Schnabl, David A. Brenner, Claude B. Sirlin, Chi‐Hua Chen, Rohit Loomba, Genetics of NAFLD in Twins Consortium – 23 March 2018 – Previous studies have shown that gut‐microbiome is associated with nonalcoholic fatty liver disease (NAFLD). We aimed to examine if serum metabolites, especially those derived from the gut‐microbiome, have a shared gene‐effect with hepatic steatosis and fibrosis.

NI‐0801, an anti‐chemokine (C‐X‐C motif) ligand 10 antibody, in patients with primary biliary cholangitis and an incomplete response to ursodeoxycholic acid

Kathy L. de Graaf, Geneviève Lapeyre, Florence Guilhot, Walter Ferlin, Stuart M. Curbishley, Marco Carbone, Paul Richardson, Sulleman Moreea, C. Anne McCune, Stephen D. Ryder, Roger W. Chapman, Annarosa Floreani, David E. Jones, Cristina de Min, David H. Adams, Pietro Invernizzi – 23 March 2018 – NI‐0801 is a fully human monoclonal antibody against chemokine (C‐X‐C motif) ligand 10 (CXCL10), which is involved in the recruitment of inflammatory T cells into the liver. The safety and efficacy of NI‐0801 was assessed in patients with primary biliary cholangitis.

Coding variants in PNPLA3 and TM6SF2 are risk factors for hepatic steatosis and elevated serum alanine aminotransferases caused by a glucagon receptor antagonist

Cristina B. Guzman, Suman Duvvuru, Anthony Akkari, Pallav Bhatnagar, Chakib Battioui, Wendra Foster, Xiaotian Michelle Zhang, Sudha S. Shankar, Mark A. Deeg, Naga Chalasani, Thomas A. Hardy, Christof M. Kazda, Sreekumar G. Pillai – 23 March 2018 – LY2409021 is a glucagon receptor antagonist that was associated with hepatic steatosis and elevated aminotransferases in phase 2 diabetes studies. We investigated the relationship between selected genetic variants and hepatic steatosis and elevated alanine aminotransferases (ALTs) associated with LY2409021.

Achieving Sustained Virological Response in Liver Transplant Recipients With Hepatitis C Decreases Risk of Decline in Renal Function

Sanjaya K. Satapathy, Kiran Joglekar, Miklos Z. Molnar, Bilal Ali, Humberto C. Gonzalez, Jason M. Vanatta, James D. Eason, Satheesh P. Nair – 23 March 2018 – The effect of antiviral therapy (AVT) on kidney function in liver transplantation (LT) recipients has not been well described despite known association of hepatitis C virus (HCV) infection with chronic kidney disease (CKD). We compared the incidence of CKD and end‐stage renal disease (ESRD) in 204 LT recipients with HCV based on treatment response to AVT.

Heterozygosity for the alpha‐1‐antitrypsin Z allele in cirrhosis is associated with more advanced disease

Benedikt Schaefer, Mattias Mandorfer, André Viveiros, Armin Finkenstedt, Peter Ferenci, Stefan Schneeberger, Herbert Tilg, Heinz Zoller – 23 March 2018 – Alpha‐1‐antitrypsin deficiency (A1ATD) due to homozygosity for the Z allele (ZZ) is an established risk factor for cirrhosis, but the liver disease risk in heterozygous Z allele carriers (MZ) is controversial. The aim of the present study was to determine the prevalence of the MZ genotype among patients with cirrhosis and the associated risk of decompensation and liver transplantation/mortality.

Acute hepatitis B virus infection in humanized chimeric mice has multiphasic viral kinetics

Yuji Ishida, Tje Lin Chung, Michio Imamura, Nobuhiko Hiraga, Suranjana Sen, Hiroshi Yokomichi, Chise Tateno, Laetitia Canini, Alan S. Perelson, Susan L. Uprichard, Harel Dahari, Kazuaki Chayama – 23 March 2018 – Chimeric urokinase type plasminogen activator (uPA)/severely severe combined immunodeficiency (SCID) mice reconstituted with humanized livers are useful for studying hepatitis B virus (HBV) infection in the absence of an adaptive immune response.

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