Abstract:
BACKGROUND/AIMS:The impact of dietary fatty acids on the development of cancers is highly controversial. We recently demonstrated that unsaturated fatty acids trigger the downregulation of the tumor suppressor PTEN through an mTOR/NF-kappaB-dependent mechanism in hepatocytes. In this study, we investigated whether unsaturated fatty acids promote hepatoma progression by downregulating PTEN expression. METHODS:The effects of fatty acids and PTEN-specific siRNAs on proliferation, invasiveness and gene expression were assessed using HepG2 hepatoma cells. The tumor promoting activity of unsaturated fatty acids was evaluated in vivo using HepG2 xenografts in nude mice. RESULTS:Incubation of HepG2 cells with unsaturated fatty acids, or PTEN-specific siRNAs, increased cell proliferation, cell migration and invasiveness, and altered the expression of genes involved in inflammation, epithelial-to-mesenchymal transition and carcinogenesis. These effects were dependent on PTEN expression levels and were prevented by mTOR and NF-kappaB inhibitors. Consistent with these data, the development and size of subcutaneous HepG2-derived tumors in nude mice xenografts were dramatically increased when mice were fed with an oleic acid-enriched diet, even in the absence of weight gain. CONCLUSIONS:These data demonstrate that dietary unsaturated fatty acids promote hepatoma progression by reducing the expression of the tumor suppressor PTEN.
journal_name
J Hepatoljournal_title
Journal of hepatologyauthors
Vinciguerra M,Carrozzino F,Peyrou M,Carlone S,Montesano R,Benelli R,Foti Mdoi
10.1016/j.jhep.2009.01.027subject
Has Abstractpub_date
2009-06-01 00:00:00pages
1132-41issue
6eissn
0168-8278issn
1600-0641pii
S0168-8278(09)00175-5journal_volume
50pub_type
杂志文章abstract::In order to document the incidence of hepatitis delta virus (HDV) replication markers and their relationship to HBV replication, 91 HBsAg chronic carriers were studied. Of these, 51 were anti-HD-positive (19 HBeAg-positive and 32 anti-HBe-positive). Liver HDAg was found in 75% of anti-HD-positive patients. Of the 19 p...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(88)80033-3
更新日期:1988-04-01 00:00:00
abstract:BACKGROUND/AIMS:This study assesses the safety, pharmacokinetics and efficacy of transarterial chemoembolization using drug eluting beads (DEB), an embolizing device that slowly releases chemotherapy to decrease systemic toxicity. METHODS:Twenty-seven Child-Pugh A cirrhotics (76% male, 59% HCV) with untreated large/mu...
journal_title:Journal of hepatology
pub_type: 临床试验,杂志文章
doi:10.1016/j.jhep.2006.10.020
更新日期:2007-03-01 00:00:00
abstract:BACKGROUND & AIMS:Prevalence data for hepatitis B and C and an evaluation of a guideline based screening in the primary care setting are not yet available. We therefore implemented a hepatitis B surface antigen (HBsAg) and anti-hepatitis C virus (HCV) screening and developed guideline based screening strategies. METHO...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2015.01.011
更新日期:2015-06-01 00:00:00
abstract:BACKGROUND & AIMS:High-carbohydrate diets contribute to the development of liver stress and fatty liver disease. While saturated fatty acids are known to induce liver stress, the role of monounsaturated fatty acids (MUFA), synthesized by the stearoyl-CoA desaturase (SCD) family of enzymes, in regulation of liver functi...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2016.03.001
更新日期:2016-07-01 00:00:00
abstract:BACKGROUND & AIMS:Heat shock protein (Hsp) 72 is a molecular chaperone that has broad cytoprotective functions and is upregulated in response to stress. To determine its hepatic functions, we studied its expression in human liver disorders and its biological significance in newly generated transgenic animals. METHODS:...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2018.01.003
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND & AIMS:Autoimmune hepatitis (AIH) is a chronic autoimmune liver disease usually requiring life-long immunosuppression. The mechanisms for disease initiation and chronicity are largely unknown. A contribution of deficient regulatory T cells (Tregs) in the blood was controversially discussed recently. So far i...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2014.05.034
更新日期:2014-11-01 00:00:00
abstract:BACKGROUND/AIMS:A distinct subgroup of angiotensin II type 1 receptor (AT1R) blockers (ARBs) have been reported to suppress the development of hepatic steatosis. These effects were generally explained by selective peroxisome proliferator-activated receptor (PPAR) gamma modulating properties of ARBs, independent of thei...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2009.01.018
更新日期:2009-06-01 00:00:00
abstract:BACKGROUND/AIMS:A variety of data suggest that microbial infections and, in particular, atypical mycobacteria infections, may either initiate and/or be associated with the pathogenesis of primary biliary cirrhosis. METHODS:To address this hypothesis, use was made of polymerase chain reaction techniques and primers spe...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(99)80346-8
更新日期:1999-10-01 00:00:00
abstract:BACKGROUND & AIMS:Mannose-binding lectin (MBL) is a serum lectin synthesized by the liver and involved in innate host defense. MBL deficiency increases the risk of various infectious diseases mostly in immune-deficient conditions. Bacterial infections are a significant cause of morbidity and mortality in liver cirrhosi...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2010.03.028
更新日期:2010-09-01 00:00:00
abstract:BACKGROUND & AIMS:Several lipid synthesis pathways play important roles in the development and progression of hepatocellular carcinoma (HCC), although the precise molecular mechanisms remain to be elucidated. Here, we show the relationship between HCC progression and alteration of phospholipid composition regulated by ...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2013.02.030
更新日期:2013-08-01 00:00:00
abstract::The integrated results of a worldwide clinical research program studying interferon-alpha 2a (IFN-alpha 2a) (Roferon-A, F. Hoffmann-La Roche Ltd, Basel, Switzerland) for the treatment of chronic hepatitis C in 1831 patients are reviewed in this paper. According to a multivariate analysis of the data available from thi...
journal_title:Journal of hepatology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND & AIMS:Primary biliary cirrhosis (PBC) is believed to result from the interaction of genetic and environmental factors. The controlled studies aiming to assess risk factors for PBC are still limited. Our aim was to identify risk factors and co-morbidities associated with PBC in a large monocentric cohort. M...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2010.02.019
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND/AIMS:The applicability of adult-to-adult living donor liver transplantation has not been established yet. We report the first data in a European center of the process leading to this procedure from the first moment the patients were informed about it. METHODS:In phase 1 of the process, 121 adult patients en...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2005.02.016
更新日期:2005-07-01 00:00:00
abstract:BACKGROUND & AIMS:Alcohol is the main contributing factor of alcoholic cirrhosis, but less is known about the significance of drinking pattern. METHODS:We investigated the risk of alcoholic cirrhosis among 55,917 participants (aged 50-64 years) in the Danish Cancer, Diet, and Health study (1993-2011). Baseline informa...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2014.12.005
更新日期:2015-05-01 00:00:00
abstract::The nucleocapsid antigens (HBc and HBe) are present on the membranes of HBV-infected hepatocytes from HBV carriers. In autologous cytotoxicity experiments we demonstrate that cytotoxic T cells sensitised to the nucleocapsid proteins of hepatitis B are present in HBe antigen-positive HBV carriers with chronic hepatitis...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(87)80004-1
更新日期:1987-02-01 00:00:00
abstract:BACKGROUND & AIMS:Transcatheter arterial chemoembolization with lipiodol (TACE) is widely performed in patients with hepatocellular carcinoma (HCC) unsuitable for curative treatment. It has recently been recommended for patients with 2 or 3 tumors >3 cm or ≥4 tumors in a treatment algorithm proposed by Japanese guideli...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2011.10.021
更新日期:2012-04-01 00:00:00
abstract::Pre-S1 (large S) proteins are components of the envelope of HBV. The presence of pre-S1 proteins is correlated with viral replication. To test sera of patients with HBV infection for the presence of antibodies against pre-S1 proteins (anti-pre-S1), an E. coli extract containing a pre-S fusion protein covering the grea...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(87)80005-3
更新日期:1987-02-01 00:00:00
abstract:BACKGROUND/AIMS:Modifications of the Child-Pugh classification of liver cirrhosis by incorporation of hyaluronan were tested to improve the prognostic power for long term evaluation of liver cirrhosis in 126 patients observed over a period of 10 years. METHODS:Serum concentrations of HA were determined at study entry....
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(03)00431-8
更新日期:2003-12-01 00:00:00
abstract::The effect of glucagon on the relation between urea synthesis and blood amino acid concentration was studied in seven healthy volunteers. Alanine was given as prime-continuous infusions and, after 1 hr for equilibration, the urea nitrogen synthesis rate was measured in two periods of about 2 hrs as urinary excretion c...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/0168-8278(90)90072-y
更新日期:1990-01-01 00:00:00
abstract::We investigated whether regulation of interferon-alpha gene expression could be involved in liver tumor biology and the role, if any, of hepatitis B virus in the regulation of tumor cytokine gene expression. Gene expression was investigated at the transcriptional level using 'in situ' hybridization of cytokine message...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(05)80215-6
更新日期:1993-03-01 00:00:00
abstract:BACKGROUND/AIMS:The efficacy of anti-viral therapy for chronic hepatitis B virus (HBV) is lost upon the emergence of resistant virus. Using >500 patient HBV isolates from several entecavir clinical trials, we show that phenotypic susceptibility correlates with genotypic resistance and patient virologic responses. METH...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2007.12.024
更新日期:2008-06-01 00:00:00
abstract:BACKGROUND/AIMS:The liver is the major source of collagen XVIII (C18), the precursor of the angiogenesis inhibitor endostatin. In human liver C18 is mainly expressed by hepatocytes. However, its quantitative and temporospatial expression patterns during liver fibrogenesis are unknown. METHODS:We used RNA quantificatio...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(01)00134-9
更新日期:2001-09-01 00:00:00
abstract:BACKGROUND/AIMS:Partial hepatectomy results in activation of genes in the residual liver tissue which serve to restore glucose homeostasis and regenerate liver mass. Expression of insulin-like growth factor binding protein-1 (IGFBP-1) is up-regulated following partial hepatectomy and IGFBP-1 can modulate both the metab...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(99)80199-8
更新日期:1999-04-01 00:00:00
abstract:BACKGROUND/AIMS:Hepatocellular carcinoma is one of the most malignant tumors in the world. Although a wide range of therapeutic options is available, the efficacy of these methods and the prognosis of hepatocellular carcinoma are still very poor. The nucleoside analogs 2-chlorodeoxyadenosine (Cladribine, 2-CdA) and 2',...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(98)80326-7
更新日期:1998-03-01 00:00:00
abstract:BACKGROUND/AIMS:Pegylated interferon plus ribavirin can cause dose-limiting anemia. Taribavirin, a ribavirin prodrug, has shown a lower incidence of anemia. We sought to determine the efficacy and safety of taribavirin vs. ribavirin combined with pegylated interferon in patients with chronic hepatitis C (CHC). METHODS...
journal_title:Journal of hepatology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.jhep.2007.02.018
更新日期:2007-07-01 00:00:00
abstract::An uncontrolled pilot study of adenine arabinoside monophosphate intramuscularly (ARA-AMP) for 5 days at 10 mg/kg/day and 23 days at 5 mg/kg/day in divided doses, was conducted in 15 consecutive patients known to be HBeAg-positive for a minimum of 12 months. Two patients were lost to follow-up (1 having developed an h...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(86)80104-0
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND & AIMS:Interleukin-6 (IL-6) is a crucial factor in liver regeneration following partial hepatectomy (PH); however, the role of IL-6 and IL-6 trans-signaling in particular, in hepatocyte mitosis remains controversial. IL-6 trans-signaling relies upon the release of the soluble IL-6R (sIL-6R), which binds IL-6...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2010.08.017
更新日期:2011-05-01 00:00:00
abstract:BACKGROUND & AIMS:Repair from biliary damages requires the biliary specification of hepatic progenitor cells and the remodeling of ductular reactive structures into branching biliary tubules. We hypothesized that the morphogenetic role of Notch signaling is maintained during the repair process and have addressed this h...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2013.02.025
更新日期:2013-07-01 00:00:00
abstract:BACKGROUND & AIMS:HCV related liver disease is one of the most important complications in persons with HIV, with accelerated fibrosis progression in coinfected persons compared to those with HCV alone. We hypothesized that HCV-HIV coinfection increases HCV related hepatocyte apoptosis and that HCV and HIV influence TRA...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2010.07.042
更新日期:2011-04-01 00:00:00
abstract:BACKGROUND/AIMS:No information is yet available about the influence of alcohol abuse on the translocation of larger molecules (Mr>1200) through the intestinal mucosa in man. The present study aimed to determine the intestinal permeability to macromolecules in patients with chronic alcohol abuse and mild to more advance...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(00)80242-1
更新日期:2000-05-01 00:00:00