Genomewide microRNA down‐regulation as a negative feedback mechanism in the early phases of liver regeneration

Jingmin Shu, Betsy T. Kren, Zhilian Xia, Phillip Y.‐P. Wong, Lihua Li, Eric A. Hanse, Michael X. Min, Bingshan Li, Jeffrey H. Albrecht, Yan Zeng, Subbaya Subramanian, Clifford J. Steer – 13 May 2011 – The liver is one of the few organs that have the capacity to regenerate in response to injury. We carried out genomewide microRNA (miRNA) microarray studies during liver regeneration in rats after 70% partial hepatectomy (PH) at early and mid time points to more thoroughly understand their role. At 3, 12, and 18 hours post‐PH ∼40% of the miRNAs tested were up‐regulated.

Effect of vitamin K2 on the recurrence of hepatocellular carcinoma

Haruhiko Yoshida, Yasushi Shiratori, Masatoshi Kudo, Shuichiro Shiina, Toshihiko Mizuta, Masamichi Kojiro, Kyosuke Yamamoto, Yukihiro Koike, Kenichi Saito, Nozomu Koyanagi, Takao Kawabe, Seiji Kawazoe, Haruhiko Kobashi, Hiroshi Kasugai, Yukio Osaki, Yasuyuki Araki, Namiki Izumi, Hiroko Oka, Kunihiko Tsuji, Joji Toyota, Toshihito Seki, Toshiya Osawa, Naohiko Masaki, Masao Ichinose, Masataka Seike, Akihisa Ishikawa, Yoshiyuki Ueno, Kazumi Tagawa, Ryoko Kuromatsu, Shotaro Sakisaka, Hiroshi Ikeda, Hidekatsu Kuroda, Hiroyuki Kokuryu, Tatsuya Yamashita, Isao Sakaida, Tetsuo Katamoto, Kentaro Kiku

Hepatocyte proliferation and hepatomegaly induced by phenobarbital and 1,4‐bis [2‐(3,5‐dichloropyridyloxy)] benzene is suppressed in hepatocyte‐targeted glypican 3 transgenic mice

Chih‐Wen Lin, Wendy M. Mars, Shirish Paranjpe, Shashikiran Donthamsetty, Vishakha S. Bhave, Liang‐I Kang, Anne Orr, William C. Bowen, Aaron W. Bell, George K. Michalopoulos – 13 May 2011 – Glypican 3 (GPC3) is a family of glycosylphosphatidylinositol‐anchored, cell‐surface heparan sulfate proteoglycans. Loss‐of‐function mutations of GPC3 cause Simpson‐Golabi‐Behmel syndrome characterized by overgrowth of multiple organs, including liver.

Dendritic cell depletion exacerbates acetaminophen hepatotoxicity

Michael K. Connolly, Diego Ayo, Ashim Malhotra, Michael Hackman, Andrea S. Bedrosian, Junaid Ibrahim, Napoleon E. Cieza‐Rubio, Andrew H. Nguyen, Justin R. Henning, Monica Dorvil‐Castro, H. Leon Pachter, George Miller – 13 May 2011 – Acetaminophen (APAP) overdose is one of the most frequent causes of acute liver failure in the United States and is primarily mediated by toxic metabolites that accumulate in the liver upon depletion of glutathione stores.

A key role for Pre–B cell colony–enhancing factor in experimental hepatitis

Alexander R. Moschen, Romana Gerner, Andrea Schroll, Teresa Fritz, Arthur Kaser, Herbert Tilg – 12 May 2011 – Pre–B cell colony–enhancing factor (PBEF), also known as nicotinamide phosphoribosyltransferase or visfatin, plays an important role in metabolic, inflammatory, and malignant diseases. Recent evidence suggests that blocking its enzymatic activity using a specific small‐molecule inhibitor (FK866) might be beneficial in acute experimental inflammation. We investigated the role of PBEF in human liver disease and experimental hepatitis.

Complementary vascular and matrix regulatory pathways underlie the beneficial mechanism of action of sorafenib in liver fibrosis

Dominique Thabut, Chittaranjan Routray, Gwen Lomberk, Uday Shergill, Kevin Glaser, Robert Huebert, Leena Patel, Tetyana Masyuk, Boris Blechacz, Andrew Vercnocke, Erik Ritman, Richard Ehman, Raul Urrutia, Vijay Shah – 12 May 2011 – Paracrine signaling between hepatic stellate cells (HSCs) and liver endothelial cells (LECs) modulates fibrogenesis, angiogenesis, and portal hypertension. However, mechanisms regulating these processes are not fully defined.

Inhibition of glycogen synthase kinase 3 beta ameliorates liver ischemia reperfusion injury by way of an interleukin‐10‐mediated immune regulatory mechanism

Feng Ren, Zhongping Duan, Qiao Cheng, Xiuda Shen, Feng Gao, Li Bai, Jun Liu, Ronald W. Busuttil, Jerzy W. Kupiec‐Weglinski, Yuan Zhai – 12 May 2011 – The ubiquitous serine/threonine kinase glycogen synthase kinase 3 beta (Gsk3β) differentially regulates macrophage Toll‐like receptor (TLR)‐triggered pro‐ and anti‐inflammatory cytokine programs. This study was designed to determine the in vivo role and therapeutic potential of Gsk3β modulation in tissue inflammation and injury in a murine model of liver partial warm ischemia/reperfusion injury (IRI).

Successful heterozygous living donor liver transplantation for an oxysterol 7α‐hydroxylase deficiency in a Japanese patient

Tatsuki Mizuochi, Akihiko Kimura, Mitsuyoshi Suzuki, Isao Ueki, Hajime Takei, Hiroshi Nittono, Toshihiko Kakiuchi, Takanobu Shigeta, Seisuke Sakamoto, Akinari Fukuda, Atsuko Nakazawa, Toshiaki Shimizu, Takao Kurosawa, Mureo Kasahara – 12 May 2011 – Only 2 patients with an oxysterol 7α‐hydroxylase deficiency caused by mutations of the cytochrome P450 7B1 (CYP7B1) gene have been reported; for both, the outcome was fatal. We describe the clinical and laboratory features, the hepatic and renal histological findings, and the results of bile acid and CYP7B1 gene analyses for a third patient.

Subscribe to