Abstract:
AIM:To investigate whether hepatitis B virus (HBV) infection activates DNA damage response and DNA repair cofactors inhibit HBV infection and replication. METHODS:Human hepatocyte cell line HL7702 was studied. Immunoblotting was performed to test the expression of ataxia telangiectasia-mutated (ATM)-Rad3-related protein (ATR), p21 and the level of phosphorylation of Chk1, p53, H2AX, ATM in HBV-infected or non-infected-cells. Special short RNAi oligos was transfected to induce transient ATR knockdown in HL7702. ATR-ATM chemical inhibitors caffeine (CF) and theophylline (TP), or Chk1 inhibitor 7-hydroxystaurosporine (UCN01) was studied to determine whether they suppress cellular DNA damage response and MG132 inhibits proteasome. RESULTS:The ATR checkpoint pathway, responding to single-strand breaks in DNA, was activated in response to HBV infection. ATR knockdown cells decreased the HBV DNA yields, implying that HBV infection and replication could activate and exploit the activated DNA damage response. CF/TP or UCN01 reduced the HBV DNA yield by 70% and 80%, respectively. HBV abrogated the ATR-dependent DNA damage signaling pathway by degrading p21, and introduction of the p21 protein before HBV infection reduced the HBV DNA yield. Consistent with this result, p21 accumulation after MG132 treatment also sharply decreased the HBV DNA yield. CONCLUSION:HBV infection can be treated with therapeutic approaches targeting host cell proteins by inhibiting a cellular gene required for HBV replication or by restoring a response abrogated by HBV, thus providing a potential approach to the prevention and treatment of HBV infection.
journal_name
World J Gastroenteroljournal_title
World journal of gastroenterologyauthors
Zhao F,Hou NB,Song T,He X,Zheng ZR,Ma QJ,Li L,Zhang YH,Zhong Hdoi
10.3748/wjg.14.5059subject
Has Abstractpub_date
2008-08-28 00:00:00pages
5059-65issue
32eissn
1007-9327issn
2219-2840journal_volume
14pub_type
杂志文章abstract::The paper provides a basic review of intestinal microflora and its importance in liver diseases. The intestinal microflora has many important functions, above all to maintain the microbial barrier against established as well as potential pathogens. Furthermore, it influences the motility and perfusion of the intestina...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v17.i24.2890
更新日期:2011-06-28 00:00:00
abstract::Surgical resection offers the best opportunity for survival in patients with colorectal cancer metastatic to the liver, with five-year survival rates up to 58% in selected cases. However, only a minority are resectable at the time of diagnosis. Continuous research in this field aims at increasing the percentage of pat...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v17.i36.4067
更新日期:2011-09-28 00:00:00
abstract::Single-port laparoscopic surgery (SPLS) is proposed to be a step towards minimizing the invasiveness of surgery, and has since gained popularity in several surgical sub-specialties including hepatopancreatobiliary surgery. SPLS has since been applied to cholecystectomy, liver resection as well as pancreatectomy for a ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v20.i39.14329
更新日期:2014-10-21 00:00:00
abstract::The liver is one of the most important organs in the body, performing a fundamental role in the regulation of diverse processes, among which the metabolism, secretion, storage, and detoxification of endogenous and exogenous substances are prominent. Due to these functions, hepatic diseases continue to be among the mai...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v20.i40.14787
更新日期:2014-10-28 00:00:00
abstract:BACKGROUND:Computed tomography (CT), liver stiffness measurement (LSM), and magnetic resonance imaging (MRI) are non-invasive diagnostic methods for esophageal varices (EV) and for the prediction of high-bleeding-risk EV (HREV) in cirrhotic patients. However, the clinical use of these methods is controversial. AIM:To ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v26.i18.2247
更新日期:2020-05-14 00:00:00
abstract::Mother-to-child transmission of hepatitis B virus (HBV) is among the most important causes of chronic HBV infection and is the commonest mode of transmission worldwide. Currently, the presence of HBsAg, HBeAg and HBV DNA in breast milk is confirmed. Several studies have reported that breastfeeding carries no additiona...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v16.i40.5042
更新日期:2010-10-28 00:00:00
abstract:AIM:To evaluate the protective activity of allylpyrocatechol (APC), the major antioxidant constituent of Piper betel, against the indomethacin-induced stomach ulceration in the rat model and correlates with its antioxidative and mucin protecting properties. METHODS:Male Sprague-Dawley rats were divided into five group...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v13.i27.3705
更新日期:2007-07-21 00:00:00
abstract:AIM:To establish a multiple detection method based on comparative polymerase chain reaction (cPCR) and ligase detection reaction (LDR)/ligase chain reaction (LCR) to quantify the intestinal bacterial components. METHODS:Comparative quantification of 16S rDNAs from different intestinal bacterial components was used to ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v18.i3.268
更新日期:2012-01-21 00:00:00
abstract::Pelvic radiation is a commonly utilized treatment for malignancy of the genitourinary and lower gastrointestinal tract. Radiation proctitis and the resultant clinical picture varies from asymptomatic to potentially life threatening. Similarly, treatment options also vary greatly, from medical therapy to surgical inter...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v22.i31.6972
更新日期:2016-08-21 00:00:00
abstract::A cerebral lipiodol embolism is an extremely rare complication of transcatheter arterial chemoembolization for hepatocellular carcinoma. We present a case of cerebral lipiodol embolism that occurred after the third arterial chemoembolization, report the clinical and radiological findings, and review the medical litera...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.14.4834
更新日期:2008-08-14 00:00:00
abstract:AIM:To evaluate the effects of extrahepatic collaterals to the liver on liver damage and patient outcome after embolotherapy for the ruptured hepatic artery pseudoaneurysm following hepatobiliary pancreatic surgery. METHODS:We reviewed 9 patients who underwent transcatheter arterial embolization (TAE) for the ruptured...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v13.i3.408
更新日期:2007-01-21 00:00:00
abstract::The Authors summarize problems, criticisms but also advantages and indications regarding the recent surgical proposal of associating liver partition and portal vein ligation (PVL) for staged hepatectomy (ALPPS) for the surgical management of colorectal liver metastases. Looking at published data, the technique, when c...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v19.i39.6548
更新日期:2013-10-21 00:00:00
abstract:AIM:To investigate the role of peritoneal macrophage (PM) polarization in the therapeutic effect of abdominal paracentesis drainage (APD) on severe acute pancreatitis (SAP). METHODS:SAP was induced by 5% Na-taurocholate retrograde injection in Sprague-Dawley rats. APD was performed by inserting a drainage tube with a ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v24.i45.5131
更新日期:2018-12-07 00:00:00
abstract:AIM:To investigate the effects of herbal compound 861 (Cpd 861) on cell proliferation in human hepatic stellate cells (LX-2) and human hepatocellular liver carcinoma cells (HepG2), and expression of alpha-smooth muscle actin (alpha-SMA) in LX-2 cells. METHODS:LX-2 and HepG2 cells were incubated with various concentrat...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v10.i19.2831
更新日期:2004-10-01 00:00:00
abstract::AIM:To establish an experimental model of stress ulcer produced by explosive noise, and to probe into its mechanism and protection.METHODS:The country standard Wistar white rats were randomly divided into control group(n =8), which were neither stimulated nor protected, and stimulating group (divided into subgroups A,...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v4.i6.519
更新日期:1998-12-01 00:00:00
abstract:AIM:Oxygen free radical mediated tissue damage is well established in pathogenesis of acute pancreatitis (AP). Whether nitric oxide (NO) plays a deleterious or a protective role is unknown. In alcohol-induced AP, we studied NO, lipooxidative damage and glutathione in pancreas, lung and circulation. METHODS:AP was indu...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i15.2340
更新日期:2005-04-21 00:00:00
abstract:AIM:To investigate the antioxidant effect of caffeic acid phenethyl ester (CAPE) in hepatic stellate cell-T6 (HSC-T6) cells cultured in vitro and the potential mechanisms. METHODS:HSC-T6 cells were cultured in vitro and treated with various concentrations of CAPE for 24, 48 and 72 h, respectively. Cell proliferation w...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v23.i7.1203
更新日期:2017-02-21 00:00:00
abstract:AIM:To compare the therapeutic effects of proton pump inhibitors vs H₂ receptor antagonists for upper gastrointestinal bleeding in patients after successful endoscopy. METHODS:We searched the Cochrane library, MEDLINE, EMBASE and PubMed for randomized controlled trials until July 2014 for this study. The risk of bias ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,meta分析,评审
doi:10.3748/wjg.v21.i20.6341
更新日期:2015-05-28 00:00:00
abstract::High-risk human papillomavirus has been suggested as a risk factor for esophageal adenocarcinoma. Tumor human papillomavirus status has been reported to confer a favorable prognosis in esophageal adenocarcinoma. The size of the primary tumor and degree of lymphatic spread determines the prognosis of esophageal carcino...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v26.i21.2729
更新日期:2020-06-07 00:00:00
abstract:AIM:To assess the diagnostic accuracy of endoscopic ultrasound (EUS), fluid tumor markers and cytology in distinguishing benign from (pre)malignant pancreatic cystic lesions. METHODS:46 consecutive patients, referred to a gastroenterologist and surgeon for a symptomatic or incidental pancreatic cyst, were reviewed. EU...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v13.i29.3962
更新日期:2007-08-07 00:00:00
abstract::Retroperitoneal fibrosis is a rare disease characterized by the development of inflammation and fibrosis in the soft tissues of the retroperitoneum and other abdominal organs. Retroperitoneal fibrosis can be of 2 types: idiopathic and secondary. The recently advocated concept and diagnostic criteria of immunoglobulin ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v19.i1.35
更新日期:2013-01-07 00:00:00
abstract:AIM:To evaluate the efficacy and safety of endoscopic submucosal dissection (ESD) for early gastric cancer (EGC) with undifferentiated-type histology. METHODS:A systematic literature review was conducted using the core databases. Complete resection, curative resection, en bloc resection, recurrence and adverse event r...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,meta分析,评审
doi:10.3748/wjg.v21.i19.6032
更新日期:2015-05-21 00:00:00
abstract::Constitutive activation of the insulin-like growth factor (IGF)-signaling axis is frequently observed in human hepatocellular carcinoma (HCC). Especially the overexpression of the fetal growth factor IGF-II, IGF-I receptor (IGF-IR), and cytoplasmic downstream effectors such as insulin-receptor substrates (IRS) contrib...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.14.1690
更新日期:2008-03-21 00:00:00
abstract:AIM:To evaluate the utility of local tumor therapy combined with percutaneous transhepatic biliary drainage (PTBD) for malignant obstructive biliary disease. METHODS:A total of 233 patients with malignant biliary obstruction were treated in our hospital with PTBD by placement of metallic stents and/or plastic tubes. A...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v12.i2.331
更新日期:2006-01-14 00:00:00
abstract::The expression of phosphatase and tensin homolog (PTEN), a tumor suppressor gene, is frequently down-regulated in gastric carcinomas due to mutation, loss of heterozygosity, and promoter hypermethylation. However, it is unknown if additional mechanisms may account for the down-regulation of PTEN expression. While neur...
journal_title:World journal of gastroenterology
pub_type: 信件
doi:10.3748/wjg.v18.i43.6345
更新日期:2012-11-21 00:00:00
abstract:AIM:To explore the effects of the nucleoside analogues beta-L-D4A and beta-LPA on hepatitis B virus (HBV) promoters. METHODS:Four HBV promoters were amplified by polymerase chain reaction (PCR) and subcloned into the expression vector pEGFP-1. The four recombinants controlled by HBV promoters were confirmed by restric...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.14.1836
更新日期:2008-03-28 00:00:00
abstract:AIM:To evaluate the value of ABC (D) stratification [combination of serum pepsinogen and Helicobacter pylori (H. pylori) antibody] of patients with gastric cancer. METHODS:Ninety-five consecutive patients with gastric cancer were enrolled into the study. The serum pepsinogen I (PG I)/pepsinogen II (PG II) and H. pylor...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v17.i43.4793
更新日期:2011-11-21 00:00:00
abstract::Although the lung is the major site for Mycobacterium tuberculosis infection, gastrointestinal involvement can be present as part of multiorgan disease process or, less commonly, can be seen as primary gastrointestinal tuberculosis. In the cases where the culture is negative, it can be difficult to differentiate tuber...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v9.i10.2382
更新日期:2003-10-01 00:00:00
abstract:AIM:To identify the prognostic value of hepatitis B virus (HBV) and hepatitis C virus (HCV) infections in patients with intrahepatic cholangiocarcinoma. METHODS:A search was performed for relevant publications in PubMed, EMBASE and Web of Science databases. The pooled effects were calculated from the available informa...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,meta分析,评审
doi:10.3748/wjg.v22.i10.3038
更新日期:2016-03-14 00:00:00
abstract:AIM:To investigate the effects of KAI1/CD82 on biological behavior of colorectal carcinoma cells. METHODS:KAI1 cDNA was transfected into highly malignant colorectal carcinoma cell line, LoVo, which had low level of endogenous KAI1 expression, and established stable transfectant clones with high KAI1/CD82 expression. T...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v9.i6.1231
更新日期:2003-06-01 00:00:00