Overlapping high‐resolution copy number alterations in cancer genomes identified putative cancer genes in hepatocellular carcinoma

Chian‐Feng Chen, En‐Chi Hsu, Kuen‐Tyng Lin, Pang‐Hsien Tu, Hung‐Wei Chang, Chin‐Hui Lin, Yann‐Jang Chen, De‐Leung Gu, Chi‐Hung Lin, Jer‐Yuarn Wu, Yuan‐Tsong Chen, Ming‐Ta Hsu, Yuh‐Shan Jou – 29 October 2010 – Recurrent cancer genome aberrations are indicators of residing crucial cancer genes. Although recent advances in genomic technologies have led to a global view of cancer genome aberrations, the identification of target genes and biomarkers from the aberrant loci remains difficult.

Impact of hepatitis B virus surface protein mutations on the diagnosis of occult hepatitis B virus infection

Mira El Chaar, Daniel Candotti, R. Anthony Crowther, Jean Pierre Allain – 29 October 2010 – Genotype D occult hepatitis B virus (HBV) infections (OBIs) have a high frequency of amino acid substitutions in the major hydrophilic region of the small surface protein (S protein). This possibly reflects an escape mutation mechanism to evade detection by the host immune system. Mutations may also impact the detection of hepatitis B surface antigen (HBsAg) by commercial assays.

Liver X receptor α and farnesoid X receptor are major transcriptional regulators of OATP1B1

Henriette E. Meyer zu Schwabedissen, Kerstin Böttcher, Amarjit Chaudhry, Heyo K. Kroemer, Erin G. Schuetz, Richard B. Kim – 29 October 2010 – Organic anion transporting polypeptide 1B1 (OATP1B1) is a liver‐enriched transporter involved in the hepatocellular uptake of many endogenous molecules and several structurally divergent drugs in clinical use. Although OATP1B1 coding region polymorphisms are known to make an impact on substrate drug disposition in humans, little is known regarding the mechanisms underlying the transcriptional regulation of this transporter.

Frequent multiple hepatitis C virus infections among injection drug users in a prison setting

Son T. Pham, Rowena A. Bull, James M. Bennett, William D. Rawlinson, Gregory J. Dore, Andrew R. Lloyd, Peter A. White – 29 October 2010 – Recent data indicate that multiple hepatitis C virus (HCV) infections (mixed infection, superinfection, and reinfection) are common among injection drug users (IDUs). In this study, we identified and characterized multiple HCV infection episodes among HCV‐seronegative IDU prison inmates (n = 488) enrolled in the Hepatitis C Incidence and Transmission Study cohort.

The oncogenic effect of sulfatase 2 in human hepatocellular carcinoma is mediated in part by glypican 3–dependent Wnt activation

Jin‐Ping Lai, Abdul M. Oseini, Catherine D. Moser, Chunrong Yu, Sherine F. Elsawa, Chunling Hu, Ikuo Nakamura, Tao Han, Ileana Aderca, Hajime Isomoto, Megan M. Garrity‐Park, Abdirashid M. Shire, Jia Li, Schuyler O. Sanderson, Alex A. Adjei, Martin E. Fernandez‐Zapico, Lewis R. Roberts – 29 October 2010 – Heparan sulfate proteoglycans (HSPGs) act as coreceptors or storage sites for growth factors and cytokines such as fibroblast growth factor and Wnts. Glypican 3 (GPC3) is the most highly expressed HSPG in hepatocellular carcinoma (HCC).

Functional and morphological vascular changes in pediatric nonalcoholic fatty liver disease

Lucia Pacifico, Caterina Anania, Francesco Martino, Vito Cantisani, Roberto Pascone, Andrea Marcantonio, Claudio Chiesa – 29 October 2010 – Nonalcoholic fatty liver disease (NAFLD) has been consistently found to be associated with features of the metabolic syndrome (MS), a condition carrying a high risk of cardiovascular events. The present study aimed to determine whether, in children and adolescents, NAFLD is atherogenic beyond its association with MS and its components.

Liver‐specific suppressor of cytokine signaling‐3 deletion in mice enhances hepatic insulin sensitivity and lipogenesis resulting in fatty liver and obesity1

Nirupa Sachithanandan, Barbara C. Fam, Stacey Fynch, Nicolas Dzamko, Matthew J. Watt, Sam Wormald, Jane Honeyman, Sandra Galic, Joseph Proietto, Sofianos Andrikopoulos, Andrea L. Hevener, Thomas W.H. Kay, Gregory R. Steinberg – 29 October 2010 – Obesity is associated with chronic inflammation and contributes to the development of insulin resistance and nonalcoholic fatty liver disease. The suppressor of cytokine signaling‐3 (SOCS3) protein is increased in inflammation and is thought to contribute to the pathogenesis of insulin resistance by inhibiting insulin and leptin signaling.

Adiponectin antagonizes the oncogenic actions of leptin in hepatocellular carcinogenesis

Dipali Sharma, Jason Wang, Ping P. Fu, Shvetank Sharma, Arumugam Nagalingam, Jamie Mells, Jeffrey Handy, Andrew J. Page, Cynthia Cohen, Frank A. Anania, Neeraj K. Saxena – 29 October 2010 – Obesity is rapidly becoming a pandemic and is associated with increased carcinogenesis. Obese populations have higher circulating levels of leptin in contrast to low concentrations of adiponectin. Hence, it is important to evaluate the dynamic role between adiponectin and leptin in obesity‐related carcinogenesis.

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