Abstract:
AIM:To investigate the mechanism of chaperone-mediated autophagy (CMA)-induced resistance to irradiation-triggered apoptosis through regulation of the p53 protein in hepatocellular carcinoma (HCC). METHODS:Firstly, we detected expression of lysosome-associated membrane protein 2a (Lamp-2a), which is the key protein of CMA, by western blot in HepG2 and SMMC7721 cells after irradiation. We further used shRNA Lamp-2a HCC cells to verify the radioresistance induced by CMA. Next, we detected the HMGB1 and p53 expression after irradiation by western blot, and we further used RNA interference and ethyl pyruvate (EP), as a HMGB1 inhibitor, to observe changes of p53 expression. Finally, an immunoprecipitation assay was conducted to explore the interaction between Lamp-2a and HMGB1, and the data were analyzed. RESULTS:We found the expression of Lamp-2a was increased on irradiation while apoptosis decreased in HepG2 and SMMC7721 cells. The apoptosis was increased markedly in the shRNA Lamp-2a HepG2 and SMMC7721 cells as detected by western blot and colony formation assay. Next, we found p53 expression was gradually reduced on irradiation but obviously increased in shRNA Lamp-2a cells. Furthermore, p53 increased the cell apoptosis on irradiation in Hep3B (p53-/-) cells. Finally, p53 levels were regulated by HMGB1 as measured through RNA interference and the EP treatment. HMGB1 was able to combine with Lamp-2a as seen by immunoprecipitation assay and was degraded via the CMA pathway. The decreased HMGB1 inhibited p53 expression induced by irradiation and further reduced the apoptosis in HCC cells. CONCLUSION:CMA pathway activation appears to down-regulate the susceptibility of HCC to irradiation by degrading HMGB1 with further impact on p53 expression. These findings have clinical relevance for radiotherapy of HCC.
journal_name
World J Gastroenteroljournal_title
World journal of gastroenterologyauthors
Wu JH,Guo JP,Shi J,Wang H,Li LL,Guo B,Liu DX,Cao Q,Yuan ZYdoi
10.3748/wjg.v23.i13.2308subject
Has Abstractpub_date
2017-04-07 00:00:00pages
2308-2317issue
13eissn
1007-9327issn
2219-2840journal_volume
23pub_type
杂志文章abstract:AIM:To define probiotic monotherapy effect on Helicobacter pylori (H. pylori) status by performing a systematic review. METHODS:Methods of analysis and inclusion criteria were based on PRISMA recommendations. Relevant publications were identified by searching PubMed, MEDLINE, Science Direct, and EMBASE. The end-point ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,meta分析,评审
doi:10.3748/wjg.v24.i1.139
更新日期:2018-01-07 00:00:00
abstract:AIM:To investigate microRNA-133a (miR-133a) expression in colorectal cancer (CRC) and its relationship with tumorigenesis and disease prognosis. METHODS:Quantitative real-time polymerase chain reaction was used to measure levels of miR-133a in tumor samples and adjacent non-cancerous tissues from 169 patients undergoi...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v20.i32.11340
更新日期:2014-08-28 00:00:00
abstract:AIM:To assess the role of three-dimensional endoanal ultrasound (3D-EAUS) for morphological assessment of the anal sphincter of female patients with chronic proctalgia (CP). METHODS:In this unmatched case control study, 30 consecutive female patients with CP and 25 normal women (control group) were enrolled. 3D-EAUS w...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v23.i21.3900
更新日期:2017-06-07 00:00:00
abstract:BACKGROUND:Non-invasive evaluation for liver fibrosis is clinically important, especially in patients with undetectable hepatitis B virus (HBV) DNA treated with nucleoside analogs. AIM:To clarify the monitoring power of hepatitis B core-related antigen (HBcrAg) for hepatic histologic changes in patients with chronic h...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.3748/wjg.v25.i32.4764
更新日期:2019-08-28 00:00:00
abstract::Recent research has shown that microRNA (miRNA), which is involved in almost every step of gastric carcinogenesis, has broad prospective application in diagnosis and therapy of gastric carcinoma. Eastern Asia (South Korea, Japan and China) has the highest incidence of gastric cancer in the world. There were 988,000 ne...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v19.i13.2019
更新日期:2013-04-07 00:00:00
abstract:AIM:To assess the diagnostic value of a laparoscopic finding of a hepatic subcapsular spider-like telangiectasis (HSST) sign in biliary atresia. METHODS:A retrospective study was conducted first and then a validation set was used to investigate the value of an HSST sign in predicting biliary atresia (BA). In the retro...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v23.i39.7119
更新日期:2017-10-21 00:00:00
abstract:BACKGROUND:Systemic inflammation and nutrition status play an important role in cancer metastasis. The combined index of hemoglobin, albumin, lymphocyte, and platelet (HALP), consisting of haemoglobin, albumin, lymphocytes, and platelets, is considered as a novel marker to reflect both systemic inflammation and nutriti...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v26.i8.828
更新日期:2020-02-28 00:00:00
abstract:AIM:To evaluate the potential role of Nimesulide, a selective COX-2 inhibitor, in proliferation and apoptosis of gastric adenocarcinoma cells SGC7901. METHODS:Cell counts and MTT assay were used to quantify the influence of Nimesulide in the proliferation of SGC7901 cells. Transmission electron microscopy and flow cyt...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v9.i5.915
更新日期:2003-05-01 00:00:00
abstract::AIM:To compare the features of gastroesophageal reflux disease between elderly and younger patients.METHODS:Twenty-four hour pH-monitoring and endoscopy were performed for the 66 elderly patients with typical gastroesophageal reflux symptoms, and the results were compared with 112 symptomatic younger patients.RESULTS:...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v5.i5.421
更新日期:1999-10-01 00:00:00
abstract:AIM:To evaluate the efficacy and the safety of combined 5-Fluorouracil, irinotecan, bevacizumab and sirolimus in refractory advanced colorectal carcinoma. METHODS:We initiated a regimen with at day 1 an injection (iv) of bevacizumab at 5 mg/kg, followed by 180 mg/m(2) irinotecan, followed by Leucovorin 400 mg/m(2), fo...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.15.4278
更新日期:2009-09-14 00:00:00
abstract::Nonalcoholic fatty liver disease (NAFLD) is the commonest chronic liver disease in high-income countries and is associated with increased morbidity and mortality. Macrophages appear to play an important role in the development and progression of hepatic fibrosis in patients with NAFLD. Accordingly, modulation of macro...
journal_title:World journal of gastroenterology
pub_type: 社论
doi:10.3748/wjg.v24.i48.5415
更新日期:2018-12-28 00:00:00
abstract:AIM:To determine the incidence of brain metastasis in a contemporary group of patients with carcinoma of the esophagus. METHODS:Retrospective analysis of 53 patients with esophageal carcinoma who received radiotherapy as a component of treatment between 1998 and 2007, including patient and tumor characteristics, and s...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v17.i19.2407
更新日期:2011-05-21 00:00:00
abstract:AIM:To investigate the individual and combined effects of allopurinol and hyperbaric oxygen (HBO) therapy on biochemical and histopathological changes, oxidative stress, and bacterial translocation (BT) in the experimental rat acute pancreatitis (AP). METHODS:Eighty-five Sprague-Dawley rats were included in the study....
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v13.i46.6203
更新日期:2007-12-14 00:00:00
abstract::Primary sclerosing cholangitis (PSC) is a disease of the biliary tract, which has been documented in the literature since 1867. This disease has a strong predilection for affecting men and can be seen in individuals as young as 2 years of age. PSC has a strong associated with inflammatory bowel disease, more commonly ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v23.i14.2459
更新日期:2017-04-14 00:00:00
abstract::Colorectal cancer (CRC) is fourth most common cancer in men and third in women worldwide. Developing a diagnostic panel of sensitive and specific biomarkers for the early detection of CRC is recognised as to be crucial for early initial diagnosis, which in turn leads to better long term survival. Most of the research ...
journal_title:World journal of gastroenterology
pub_type: 社论,评审
doi:10.3748/wjg.v21.i35.10057
更新日期:2015-09-21 00:00:00
abstract::Ulcerative colitis (UC) is an inflammatory destructive disease of the large intestine occurred usually in the rectum and lower part of the colon as well as the entire colon. Drug therapy is not the only choice for UC treatment and medical management should be as a comprehensive whole. Azulfidine, Asacol, Pentasa, Dipe...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v10.i16.2311
更新日期:2004-08-15 00:00:00
abstract:AIM:To observe the therapeutic effects of dexamethasone on rats with severe acute pancreatitis (SAP) and investigate the influences of dexamethasone on the inflammatory mediators and NF-kappaB expression in multiple organs of SAP rats as well as the mechanisms involved. METHODS:Ninety Sprague-Dawley (SD) rats with SAP...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v13.i4.548
更新日期:2007-01-28 00:00:00
abstract:AIM:To investigate the effect of activation of canonical Wnt signaling pathway on the proliferation and differentiation of hepatic oval cells in vitro. METHODS:WB-F344 cells were treated with recombinant Wnt3a (20, 40, 80, 160, 200 ng/mL) in serum-free medium for 24 h. Cell proliferation was measured by Brdu incorpora...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.14.6673
更新日期:2008-11-21 00:00:00
abstract:AIM:To describe the imaging features of solitary fibrous tumors (SFTs) in the abdomen and pelvis, and the clinical and pathologic correlations. METHODS:Fifteen patients with pathologically confirmed SFTs in the abdomen and pelvis were retrospectively studied with imaging techniques by two radiologists in consensus. Pa...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v20.i17.5066
更新日期:2014-05-07 00:00:00
abstract:AIM:To investigate the relationship and molecular features of CD74/macrophage migration inhibitory factor (MIF)/Toll-like receptor 4 (TLR4) in gastric cancer. METHODS:CD74, MIF and TLR4 expression in the paraffin-embedded sections of gastric cancer from 120 patients were detected by immunohistochemical staining. Knock...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v18.i18.2253
更新日期:2012-05-14 00:00:00
abstract:AIM:To report a case of severe idiopathic gastroparesis in complete absence of Kit-positive gastric interstitial cells of Cajal (ICC). METHODS:Gastric tissue from a patient with severe idiopathic gastroparesis unresponsive to medical treatment and requiring surgery was analyzed by conventional histology and immunohist...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v12.i38.6172
更新日期:2006-10-14 00:00:00
abstract:BACKGROUND:The etiology of inflammatory bowel disease (IBD) is unknown, but it is believed to be multifactorial. The hygiene hypothesis proposes that better hygiene conditions would lead to less infectious disease during childhood and favor the development of immune-mediated diseases. AIM:To test the hygiene hypothesi...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v26.i25.3611
更新日期:2020-07-07 00:00:00
abstract::One potential option for the management of refractory gastro-esophageal reflux disease (GERD) is the delivery of radiofrequency energy to the gastro-esophageal junction (Stretta). This endoscopic therapy is safe, effective, durable, and repeatable if necessary and serves an unmet need for many GERD sufferers. Stretta ...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v20.i24.7730
更新日期:2014-06-28 00:00:00
abstract::Laparoscopic gastrectomy has been widely accepted as a standard alternative for the treatment of early-stage gastric adenocarcinoma because of its favorable short-term outcomes. Although controversies exist, such as establishing clear indications, proper preoperative staging, and oncologic safety, experienced surgeons...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v22.i2.727
更新日期:2016-01-14 00:00:00
abstract:AIM:To investigate the clinicopathologic features of patients with extra-gastrointestinal stromal tumors (EGISTs) in South Korea. METHODS:A total of 51 patients with an EGIST were identified. The clinicopathologic features, including sex, age, location, tumor size, histology, mitotic rate, immunohistochemical features...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v21.i6.1845
更新日期:2015-02-14 00:00:00
abstract::Deficiencies in vitamins or other factors (B6, B12, folic acid, betaine) and genetic disorders for the metabolism of the non-protein amino acid-homocysteine (Hcy) lead to hyperhomocysteinemia (HHcy). HHcy is an integral component of several disorders including cardiovascular disease, neurodegeneration, diabetes and al...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3748/wjg.v10.i12.1699
更新日期:2004-06-15 00:00:00
abstract:AIM:Intrabiliary rupture (IBR) is a common and serious complication of hepatic hydatid cyst. The incidence varies from 1% to 25%. The treatment of IBR is still controversial. We aimed to design an algorithm for the treatment of hepatic hydatidosis with IBR by reviewing our cases. METHODS:Eight cases of IBR were analyz...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v11.i16.2472
更新日期:2005-04-28 00:00:00
abstract:AIM:To evaluate the feasibility of quantifying liver choline concentrations in both normal and apoptotic rabbit livers in vivo, using 1H magnetic resonance spectroscopy (1H-MRS). METHODS:1H-MRS was performed in 18 rabbits using a 1.5T GE MR system with an eight-channel head/neck receiving coil. Fifteen rabbits were in...
journal_title:World journal of gastroenterology
pub_type: 杂志文章
doi:10.3748/wjg.v18.i10.1130
更新日期:2012-03-14 00:00:00
abstract:BACKGROUND:To date, the histopathological parameters predicting the risk of lymph node (LN) metastases and local recurrence, associated mortality and appropriateness of endoscopic or surgical resection in patients with gastric neuroendocrine neoplasms type 1 (GNENs1) have not been fully elucidated. AIM:To determine th...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,meta分析
doi:10.3748/wjg.v25.i35.5376
更新日期:2019-09-21 00:00:00
abstract::Irritable bowel syndrome (IBS) is a chronic condition affecting 3%-25% of the general population. As no curative treatment is available, therapy is aimed at reducing symptoms, often with little success. Because alteration of the normal intestinal microflora has been observed in IBS, probiotics (beneficial microbes tak...
journal_title:World journal of gastroenterology
pub_type: 杂志文章,meta分析,评审
doi:10.3748/wjg.14.2650
更新日期:2008-05-07 00:00:00