Abstract:
BACKGROUND & AIMS:Reactive cholangiocytes acquire a neuroendocrine-like phenotype, with synthesis and local release of neuropeptides and hormones. The mechanism that drives such phenotypical changes is still undefined. Pancreatic Duodenal Homeobox-1 (PDX-1) is a transcription factor required for pancreatic development, that sustains pancreatic beta-cell response to injury and insulin synthesis. PDX-1 induces neuroendocrine-like transition of pancreatic ductal cells. Cholangiocyte response to injury is modulated by Glucagon-Like Peptide-1 Receptor (GLP-1R), which, in the pancreas, activates PDX-1. We wanted to verify whether PDX-1 plays any role in cholangiocyte neuroendocrine-like transdifferentiation in response to injury. METHODS:PDX-1 expression was assessed in cholangiocytes from normal and one week bile duct ligated (BDL) rats. Changes in PDX-1 expression and activation upon GLP-1R activation were then assayed. The effects of the lack of PDX-1 in cholangiocytes were studied in vitro by siRNA and in vivo by the employment of PDX-1-deficient (+/-) mice. RESULTS:BDL but not normal cholangiocytes express PDX-1. GLP-1R activation elicits, in a PI3K-dependent fashion, PDX-1 expression, together with its nuclear translocation. In vitro, GLP-1R-induced increases in VEGF and IGF-1 mRNA expression were blunted in cells with PDX-1 siRNA. In vivo, the VEGF and IGF-1 mRNA expression in the liver after one week BDL was markedly reduced in PDX-1-deficient mice, together with reduced bile duct mass. CONCLUSIONS:In response to injury, reactive cholangiocytes de novo express PDX-1, the activation of which allows cholangiocytes to synthesize IGF-1 and VEGF. These findings suggest that PDX-1 drives the acquisition of the neuroendocrine-like phenotype by cholangiocytes in response to cholestatic injury.
journal_name
J Hepatoljournal_title
Journal of hepatologyauthors
Marzioni M,Saccomanno S,Candelaresi C,Rychlicki C,Agostinelli L,Shanmukhappa K,Trozzi L,Pierantonelli I,De Minicis S,Benedetti Adoi
10.1016/j.jhep.2010.04.022subject
Has Abstractpub_date
2010-10-01 00:00:00pages
663-70issue
4eissn
0168-8278issn
1600-0641pii
S0168-8278(10)00538-6journal_volume
53pub_type
杂志文章abstract::Three patients with Budd-Chiari syndrome in association with the 'lupus' anticoagulant are described. This anticoagulant was looked for in our patients with an otherwise idiopathic hepatic venous thrombosis because of the presence of a pronounced thrombocytopenia, a prolonged activated partial thromboplastin time or a...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(86)80151-9
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND & AIMS:The MELD score predicts short-term mortality in patients with cirrhosis; however, some patients with low scores develop complications and die unexpectedly. Consequently, we evaluated the diagnostic accuracy of the methacetin breath test (MBT), an assay of liver metabolic function, and the MELD score, ...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2015.07.021
更新日期:2015-12-01 00:00:00
abstract:BACKGROUND & AIMS:Recently, the PAGE-B score and Toronto HCC risk index (THRI) have been developed to predict the risk of hepatocellular carcinoma (HCC) in Caucasian patients with chronic hepatitis B (CHB). We aimed to validate PAGE-B scores and THRI in Asian patients with CHB and suggested modified PAGE-B scores to im...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2018.07.018
更新日期:2018-11-01 00:00:00
abstract::The present study was conducted to evaluate if the increased rate of apoptosis previously reported in the liver of ethanol-treated rats was accompanied by increased cell renewal. A quantitative analysis of apoptosis was performed in rats fed an ethanol-containing liquid diet for 5 weeks. S-phase cells were demonstrate...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(05)80498-2
更新日期:1994-04-01 00:00:00
abstract::Interferon-based treatments have a poor safety profile and limited efficacy in patients with advanced liver disease and in patients with hepatitis C (HCV) recurrence after liver transplantation (LT). Despite the recent approval of the first interferon-free regimen, which will be followed by several other interferon-fr...
journal_title:Journal of hepatology
pub_type: 杂志文章,评审
doi:10.1016/j.jhep.2014.07.020
更新日期:2014-11-01 00:00:00
abstract::Guinea pig Kupffer cells were obtained by partial digestion of the liver with pronase and collagenase and purified by centrifugal elutriation. Cells were kept in monolayer culture and their capacity to secrete superoxide anion in response to phagocytosis of zymosan was determined by the cytochrome c method. Compared t...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(88)80006-0
更新日期:1988-12-01 00:00:00
abstract:BACKGROUND:NGM282, an engineered analogue of the gut hormone FGF19, improves hepatic steatosis and fibrosis biomarkers in patients with non-alcoholic steatohepatitis (NASH). However, NGM282 increases serum cholesterol levels by inhibiting CYP7A1, which encodes the rate-limiting enzyme in the conversion of cholesterol t...
journal_title:Journal of hepatology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.jhep.2018.11.032
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND/AIMS:Despite anti-HBs immunoglobulin therapy, hepatitis B virus (HBV) infection recurs in a high proportion of patients transplanted for HBsAg positive and serum HBV DNA negative chronic liver disease. The contribution of HBV genetic variability to disease recurrence has not been yet thoroughly addressed. We...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(97)80035-9
更新日期:1997-02-01 00:00:00
abstract:BACKGROUND/AIMS:The molecules involved in the progression of hepatocellular carcinoma (HCC) are not fully understood. The aim of this study was to elucidate the crucial genes involved in cancer progression and metastasis. METHODS:Selectively expressed genes were screened using differential display analysis, and then f...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(01)00183-0
更新日期:2001-11-01 00:00:00
abstract:BACKGROUND & AIMS:Recent research has suggested that dietary fructose intake may increase serum uric acid (UA) concentrations. Both UA concentration and fructose consumption maybe also increase in NAFLD. It is not known whether dietary fructose consumption and UA concentration are independently associated with non-alco...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2016.12.025
更新日期:2017-05-01 00:00:00
abstract::Thirty-five consecutive patients with primary biliary cirrhosis were examined using liver biopsy, laboratory tests and ultrasonography of the hepato-duodenal ligament to investigate the possible correlation between enlarged lymph nodes in the hepato-duodenal ligament and biochemical activity, histologic activity or st...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/0168-8278(92)90025-k
更新日期:1992-05-01 00:00:00
abstract:BACKGROUND/AIMS:Primary sclerosing cholangitis (PSC) is a cholestatic liver disease of unknown etiology. Although the primary defect affects cholangiocytes, cholestatic injury of hepatocytes may promote further liver damage. Since down-regulation of hepatocellular organic anion transporters is implicated in the molecul...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(02)00052-1
更新日期:2002-06-01 00:00:00
abstract::Ciprofloxacin, a fluorinated quinolone, is a powerful antibiotic widely used for its broad spectrum of activity in ambulatory and long-term care setting. Until now, ciprofloxacin administration has been associated with a few cases of acute, sometimes cholestatic jaundice or fulminant hepatic failure believed mainly re...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(02)00268-4
更新日期:2002-11-01 00:00:00
abstract:BACKGROUND/AIMS:Not all alcoholics develop liver disease (ALD). Thus, excessive ethanol consumption is necessary, but not sufficient, to induce alcoholic steatohepatitis (ASH) and ALD. Since endotoxemia is present in patients with ALD, it has been proposed that gut-derived, circulating endotoxin is the necessary co-fac...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2008.10.028
更新日期:2009-03-01 00:00:00
abstract:BACKGROUND/AIMS:Phosphorylase-b deficient patients suffer from glycogen storage disease (GSD IXa) leading to liver enlargement which usually resolves during puberty and adolescence. This pathology has not yet been documented by (1)H MR spectroscopy (MRS) investigation. METHODS:MRS of eight GSD IXa patients was perform...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2006.06.021
更新日期:2006-12-01 00:00:00
abstract::Maturity onset diabetes of the young type 3 (MODY3) and hepatocellular adenomas (HCAs) are associated with mutations in the HNF1A gene. HNF1A codes for the transcription factor HNF1α, which interacts with DNA as a homodimer or a heterodimer with HNF1β, to regulate multiple cellular functions including glucidic metabol...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2013.05.024
更新日期:2013-10-01 00:00:00
abstract:BACKGROUND & AIMS:Hepatitis B virus (HBV) and D virus (HDV) co-infections cause the most severe form of viral hepatitis. HDV induces an innate immune response, but it is unknown how the host cell senses HDV and if this defense affects HDV replication. We aim to characterize interferon (IFN) activation by HDV, identify ...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2018.02.021
更新日期:2018-07-01 00:00:00
abstract:BACKGROUND & AIMS:Large extracellular vesicles, specifically AnnexinV+ EpCAM+ CD147+ tumour-associated microparticles (taMPs), facilitate the detection of colorectal carcinoma (CRC), non-small cell lung carcinoma (NSCLC) as well as pancreas carcinoma (PaCa). Here we assess the diagnostic value of taMPs for detection an...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2017.02.024
更新日期:2017-08-01 00:00:00
abstract::Porphyria cutanea tarda (PCT) is a metabolic disorder characterized by a reduced hepatic activity of uroporphynogen decarboxylase (URO-D), an enzyme of the heme synthesis. The clinical features of PCT may be brought into light by hepatic injury induced by hepatitis C virus (HCV). A significant association between HCV ...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2004.10.029
更新日期:2005-04-01 00:00:00
abstract:BACKGROUND/AIMS:Familial hypobetalipoproteinemia (FHBL) is a co-dominant disorder characterized by reduced plasma levels of low-density lipoproteins. It can be caused by mutations in the gene encoding apolipoprotein B-100 (apo B), leading to the formation of truncated apo Bs which have a reduced capacity to export lipi...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(00)80270-6
更新日期:2000-09-01 00:00:00
abstract::To evaluate the efficacy of recombinant interferon alpha-2b in the treatment of patients with acute post-transfusion hepatitis C, a randomized controlled trial was conducted in 33 acute post-transfusion hepatitis C patients; 16 patients received 3 million units of subcutaneously injected recombinant interferon alpha-2...
journal_title:Journal of hepatology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0168-8278(94)80246-7
更新日期:1994-11-01 00:00:00
abstract::To study experimentally the protective effect of post-exposure prophylaxis against hepatitis B (HB), a special preparation of hepatitis B immune globulin (HBIG) was injected intravenously (i.v.) into three chimpanzees simultaneously with, or at different time intervals after, intravenous injection of a titred inoculum...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/0168-8278(89)90051-2
更新日期:1989-09-01 00:00:00
abstract:BACKGROUND & AIMS:Patients listed with exception points for hepatocellular carcinoma (HCC) have been more likely to be transplanted than those listed for chronic liver failure (LF) based on the model for end-stage liver disease (MELD) score. The aim of this study was to determine outcomes in the 5-year experience of a ...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2016.10.008
更新日期:2017-02-01 00:00:00
abstract:BACKGROUND/AIMS:In these studies, we tested the hypothesis that increased lipid intake would exacerbate the severity of nutritional steatohepatitis. METHODS:C57Bl/6J mice were fed methionine-and-choline deficient (MCD) diets containing 20% (high) or 5% (low) fat by weight for 3 weeks and compared to lipid-matched cont...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2008.03.026
更新日期:2008-09-01 00:00:00
abstract:BACKGROUND & AIM:Hydrogen peroxide-inducible clone-5 (Hic-5), also named as transforming growth factor beta-1-induced transcript 1 protein (Tgfb1i1), was found to be induced by TGF-β. Previous studies have shown that TGF-β is a principal mediator of hepatic stellate cell (HSC) activation in liver fibrosis. However, thi...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2015.08.026
更新日期:2016-01-01 00:00:00
abstract::Thirty-two patients with chronic hepatitis B were randomly assigned to two groups. Sixteen patients received 10 million units of alpha-interferon per square meter of body surface (MU/m2), three times weekly for 4 months. Sixteen patients were treated simultaneously with gamma-interferon at a dose of 2 MU/m2, and 10 MU...
journal_title:Journal of hepatology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0168-8278(05)80212-0
更新日期:1993-03-01 00:00:00
abstract:BACKGROUND/AIMS:To compare carotid intima-media thickness (IMT) - an index of early atherosclerosis - among patients with non-alcoholic steatohepatitis (NASH), patients with chronic hepatitis B (HBV) or C (HCV) and control subjects. METHODS:We studied 60 consecutive patients with biopsy-proven NASH, 60 patients with H...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2007.01.021
更新日期:2007-06-01 00:00:00
abstract:BACKGROUND & AIMS:Sustained viral response (SVR) after therapy with interferon-ribavirin (IF-RB) reduces liver-related (LR) complications and mortality in HIV/HCV-co-infected patients. Here, we assess the impact of end-of-treatment response with subsequent relapse (REL) on LR events (LR death, liver decompensation, hep...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/j.jhep.2013.01.042
更新日期:2013-06-01 00:00:00
abstract::Acute-on-chronic liver failure (ACLF) is an increasingly recognised entity encompassing an acute deterioration of liver function in patients with cirrhosis, which is usually associated with a precipitating event and results in the failure of one or more organs and high short term mortality. Prospective data to define ...
journal_title:Journal of hepatology
pub_type: 杂志文章,评审
doi:10.1016/j.jhep.2012.06.026
更新日期:2012-12-01 00:00:00
abstract:BACKGROUND/AIMS:Suspensions of isolated hepatocytes are a valuable tool to study liver functions. For optimal use of the isolated hepatocytes, methods are needed to preserve the hepatocytes while maintaining their viability, metabolic and transport functions. Until now, little has been known about the maintenance of th...
journal_title:Journal of hepatology
pub_type: 杂志文章
doi:10.1016/s0168-8278(97)80091-8
更新日期:1997-10-01 00:00:00