Abstract:
BACKGROUND:Colon cancer is one of the most aggressive human malignancies, with a very poor prognosis. Although it has been suggested that different isoforms of the lymphoid enhancer factor (LEF-1) have opposing biological activities, the biological outcome of aberrant LEF-1 activation in colon cancer is still unclear. The aim of this study was to evaluate the effect of the different LEF-1 phenotypes on the growth of colon carcinoma cell lines. A deeper understanding of these processes might improve the targeted therapies for colon cancer by regulating the expression of LEF-1. METHODS:The role of different isoforms of LEF-1 on the growth of human colon carcinoma cell lines (SW480 and HT-29) was studied using various in vitro and in vivo assays. In vitro proliferation, migration, adhesion and apoptosis of the cells stably transfected of different isoforms of LEF-1 were monitored by MTT assay, carboxyfluorescein diacetate-succinimidyl ester staining, annexin V staining, ECM adhesion assay and transwell assay, respectively. In nude mice, the formation of neovasculature in the tumors formed by our constructed cells was measured by immunohistochemistry. All the data were analyzed using a t test, and data were treated as significant when p < 0.05. RESULTS:Overexpression of truncated LEF-1 (LEF-1-ΔL) in the colon cell lines, SW480 and HT29, inhibited their growth significantly in vitro and in vivo, but the full-length LEF-1 (LEF-1-FL) promoted the proliferation of HT29. Inactivation of Wnt signaling by LEF-1-ΔL reduced the expression of CXCR4 in colon cell lines, which may lead to a decrease in activities such as migration, adhesion and survival. In nude mice, the formation of neovasculature as well as an increase in tumor volume were inhibited by the short isoform of LEF-1. LEF-1-FL, however, caused an increase in all these parameters compared with controls. CONCLUSIONS:These findings suggest that LEF-1 might play an important role in colon carcinogenesis by acting as a regulator. Enhanced expression of LEF-1-FL, which occurs frequently in colon cancer, may be a new target for clinical therapy.
journal_name
BMC Gastroenteroljournal_title
BMC gastroenterologyauthors
Wang SH,Nan KJ,Wang YC,Wang WJ,Tian Tdoi
10.1186/1471-230X-12-53subject
Has Abstractpub_date
2012-05-28 00:00:00pages
53issn
1471-230Xpii
1471-230X-12-53journal_volume
12pub_type
杂志文章abstract:BACKGROUND:Bowel symptoms are considered indicators of the presence of colorectal cancer and other bowel diseases. Self administered questionnaires that elicit information about lower bowel symptoms have not been assessed for reliability, although this has been done for upper bowel symptoms. Our aim was to develop a se...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-8-8
更新日期:2008-03-01 00:00:00
abstract:BACKGROUND:In primary biliary cirrhosis (PBC) and primary sclerosing cholangitis (PSC) fatigue is a major clinical problem. Abnormal amino acid (AA) patterns have been implicated in the development of fatigue in several non-hepatological conditions but for PBC and PSC no data are available. This study aimed to identify...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-5-11
更新日期:2005-03-24 00:00:00
abstract:BACKGROUND:Enteric glia cells (EGC) play an important role in the maintenance of intestinal mucosa integrity. During the course of acute Crohn's disease (CD), mucosal EGC progressively undergo apoptosis, though the mechanisms are largely unknown. We investigated the role of Glial-derived neurotrophic factor (GDNF) in t...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-12-6
更新日期:2012-01-17 00:00:00
abstract:BACKGROUND:The assessment of residual gastric volume is common practice in critical care units. However, the effects and safety of discarding or returning gastric aspirates remain uncertain. Therefore, we aimed to evaluate the role of discarding or returning gastric aspirates on the gastric residual volumes in critical...
journal_title:BMC gastroenterology
pub_type: 杂志文章,meta分析
doi:10.1186/s12876-019-1028-7
更新日期:2019-06-28 00:00:00
abstract:BACKGROUND:There is consistent evidence that 50% of patients with acute, steroid-resistant flare of ulcerative colitis (UC) may achieve remission and avoid colectomy if treated with cyclosporin (CsA). However, follow-up of the responders has shown that most of them relapse and need surgery shortly after the response. W...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-7-13
更新日期:2007-03-27 00:00:00
abstract:BACKGROUND:Carrageenan is a traditional ingredient that has been widely used in the food industry. In the present study, we propose a hypothesis that carrageenan is a conditional inflammatory agent. When the intestinal tract is in an "unhealthy" state such as that during bacterial infection or acute inflammation, carra...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-016-0459-7
更新日期:2016-03-25 00:00:00
abstract:BACKGROUND:Compared with biofluids, target tissues and organs more directly reflect the pathophysiological state of a disease process. In this study, a D-galactosamine (GalN) / lipopolysaccharide (LPS)-induced mouse model was constructed to investigate metabonomics of liver tissue and directly characterize metabolic ch...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-13-73
更新日期:2013-04-29 00:00:00
abstract:BACKGROUND:Enhanced expression of MAdCAM-1 (mucosal addressin cell adhesion molecule-1) is associated with the onset and progression of inflammatory bowel disease. The clinical significance of elevated MAdCAM-1 expression is supported by studies showing that immunoneutralization of MAdCAM-1, or its ligands reduce infla...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230x-3-3
更新日期:2003-02-20 00:00:00
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journal_title:BMC gastroenterology
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doi:10.1186/s12876-019-1155-1
更新日期:2020-01-06 00:00:00
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journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-015-0256-8
更新日期:2015-03-10 00:00:00
abstract:BACKGROUND:Nodular lymphoid hyperplasia of gastrointestinal tract is a rare disorder, often associated with immunodeficiency syndromes. There are no published reports of its association with Helicobacter pylori infection. METHODS:From March 2005 till February 2010, we prospectively followed all patients with diffuse d...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-11-36
更新日期:2011-04-11 00:00:00
abstract:BACKGROUND:Feeding related peptides have been shown to be additionally involved in the central autonomic control of gastrointestinal functions. Recent studies have shown that ghrelin, a stomach-derived orexigenic peptide, is involved in the autonomic regulation of GI function besides feeding behavior. Pharmacological e...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-5-5
更新日期:2005-02-18 00:00:00
abstract:BACKGROUND:Allergic proctocolitis (APC) in exclusively breast-fed infants is caused by food proteins, deriving from maternal diet, transferred through lactation. In most cases a maternal cow milk-free diet leads to a prompt resolution of rectal bleeding, while in some patients a multiple food allergy can occur. The aim...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-11-82
更新日期:2011-07-16 00:00:00
abstract:BACKGROUND:Chronic diarrhea in adults is a common symptom with a wide range of underlying etiologies. Although various strategies have been proposed for evaluation, there are still cases with undetermined origins even after extensive workup. Amyloidosis with gastrointestinal (GI) involvement is one of the causes that s...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-13-71
更新日期:2013-04-24 00:00:00
abstract:BACKGROUND:Real-time tissue sonoelastography (EG) is a new non-invasive technique that visualizes differences in tissue strain. We evaluated the usefulness of EG in patients with ulcerative colitis (UC) by investigating the association between EG and colonoscopic findings and disease activity. METHODS:Thirty-seven UC ...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-11-29
更新日期:2011-03-31 00:00:00
abstract:BACKGROUND:Adult lactase non-persistence (LNP) is due to low lactase expression, resulting in lactose malabsorption (LM). LNP is a genetic trait, but is typically determined by LM markers including breath H2, blood glucose, and urinary galactose after a lactose tolerance test. Known validity of these markers using milk...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-020-01352-6
更新日期:2020-06-29 00:00:00
abstract:BACKGROUND:Acute pancreatitis is an inflammatory disease characterized by local tissue injury and systemic inflammatory response leading to massive nitric oxide (NO) production and haemodynamic disturbances. Therefore, the aim of this work was to evaluate the vascular reactivity of pulmonary and mesenteric artery rings...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-8-19
更新日期:2008-05-29 00:00:00
abstract:BACKGROUND:FibroTest (FT) is a validated biomarker of fibrosis. To assess the applicability rate and to reduce the risk of false positives/negatives (RFPN), security algorithms were developed. The aims were to estimate the prevalence of RFPN and of proven failures, and to identify factors associated with their occurren...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-11-39
更新日期:2011-04-14 00:00:00
abstract:BACKGROUND:Mini-Mental State Examination (MMSE) is one of the most commonly used methods in the assessment of cognitive mental status. MMSE has been used in hepatology but its usefulness in the evaluation of hepatic encephalopathy (HE) has never been properly assessed. The aim of the study was to investigate the value ...
journal_title:BMC gastroenterology
pub_type: 临床试验,杂志文章
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更新日期:2013-07-02 00:00:00
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journal_title:BMC gastroenterology
pub_type: 杂志文章,meta分析,评审
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pub_type: 杂志文章,随机对照试验
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更新日期:2020-04-16 00:00:00
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journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230x-2-18
更新日期:2002-08-08 00:00:00
abstract:BACKGROUND:Nonalcoholic fatty liver disease (NAFLD) is a risk factor for colorectal neoplasms. Our goal is to explore the relationship between NAFLD and colorectal cancer (CRC) and to analyze potential indicators for screening CRC in NAFLD based on clinical big data. METHODS:Demographic information and routine clinica...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-020-01327-7
更新日期:2020-06-09 00:00:00
abstract:BACKGROUND:Approximately 60% of patients presenting to dentists with erosive tooth wear have significant gastroesophageal reflux (GERD), despite minor reflux symptoms. No longitudinal studies of reflux-associated erosive tooth wear and of reflux characteristics have been reported to date. The aim of this study was to c...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-017-0670-1
更新日期:2017-10-25 00:00:00
abstract:BACKGROUND:Gastric tuberculosis mimicking submucosal tumors is extremely rare and often misdiagnosed. CASE PRESENTATION:Three cases of gastric tuberculosis mimicking submucosal tumors were identified among patients admitted to local county hospitals because of upper abdominal discomfort and pain, with gastroscopy show...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-020-1175-x
更新日期:2020-01-30 00:00:00
abstract:BACKGROUND:Portal vein thrombosis (PVT) occurs frequently in hepatocellular carcinoma (HCC) and is often diagnosed in the course of a routine patient evaluation and surveillance for liver cancer. The purpose of this study is to investigate the relationship between folate status and portal vein thrombosis. METHODS:HCC ...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-020-01525-3
更新日期:2020-11-10 00:00:00
abstract:BACKGROUND:A tenth of patients with involuntary weight loss (IWL) have gastrointestinal cancer. Ferritin is the first parameter to be modified during the process leading to iron deficiency anaemia, therefore it should be the most sensitive. The aim of this study was to assess the ability of ferritin to rule out gastroi...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-12-86
更新日期:2012-07-09 00:00:00
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journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/1471-230X-10-1
更新日期:2010-01-10 00:00:00
abstract:BACKGROUND:Irritable Bowel Syndrome (IBS) is a common chronic gastrointestinal disorder and the evidence for efficacy of most drug therapies in the treatment of IBS is weak. A popular alternative is probiotics, which have been used in several conditions. including IBS. Probiotics are live microbial food supplements.The...
journal_title:BMC gastroenterology
pub_type: 杂志文章,meta分析,评审
doi:10.1186/1471-230X-9-15
更新日期:2009-02-16 00:00:00
abstract:BACKGROUND:Hepatic artery dissection after liver transplantation is an uncommon morbidity. The onset mechanism and management for this disorder remain unclear. The present report describes the cases of two patients with hepatic artery dissection after living-donor liver transplantation (LDLT) with simultaneous splenect...
journal_title:BMC gastroenterology
pub_type: 杂志文章
doi:10.1186/s12876-020-01528-0
更新日期:2020-11-12 00:00:00