Abstract:
Background:Vitamin D3 and vitamin D receptor (VDR) are involved in the pathogenesis of inflammatory bowel disease (IBD) and bacterial infection. Claudin-2 is a junction protein that mediates paracellular water transport in epithelia. Elevation of Claudin-2 is associated with active IBD. However, VDR involved in epithelial junctions under inflammation and infection remains largely unknown. We investigated the mechanisms on how VDR and Claudin-2 are related in inflamed states. Methods:Using cultured VDR-/- enteroids, human intestinal epithelial cells, VDR-/- mice with Salmonella- or DSS-colitis, and human IBD samples, we investigated the mechanisms how VDR and Claudin-2 are related in inflamed states. Results:After Salmonella infection had taken place, we observed significantly enhanced Claudin-2 and an increased bacterial invasion and translocation. A lack of VDR regulation led to a robust increase of Claudin-2 at the mRNA and protein levels post-infection. In DSS-treated VDR-/- mice, Claudin-2 was significantly increased. Location and quantification of Claudin-2 protein in the mouse colons treated with DSS also confirmed these results. Inflammatory cytokines were significantly higher in the serum and mRNA levels in intestine, which are known to increase Claudin-2. Furthermore, in inflamed intestine of ulcerative colitis patients, VDR expression was low and Claudin-2 was enhanced. Mechanistically, we identified the enhanced Claudin-2 promoter activity through the binding sites of NF-κB and STAT in inflamed VDR-/- cells. Conclusions:Our studies have identified a new role for intestinal epithelial VDR in regulating barrier functions in the context of infection and inflammation.
journal_name
Inflamm Bowel Disjournal_title
Inflammatory bowel diseasesauthors
Zhang YG,Lu R,Xia Y,Zhou D,Petrof E,Claud EC,Sun Jdoi
10.1093/ibd/izy292subject
Has Abstractpub_date
2019-01-01 00:00:00pages
97-110issue
1eissn
1078-0998issn
1536-4844pii
5115658journal_volume
25pub_type
杂志文章abstract:SUMMARY:: In recent years, heparin has emerged as a possible therapy for inflammatory bowel disease (IBD). Several recent, strongly positive, open-labeled series of heparin in both ulcerative colitis (UC) and Crohn's disease (CD) reinforce the work of Gaffney and co-workers that suggested a benefit of heparin in UC. Al...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:
更新日期:1997-07-01 00:00:00
abstract:BACKGROUND:CALM was a randomized phase 3 trial in patients with Crohn's disease (CD) that demonstrated improved endoscopic outcomes when treatment was escalated based on cutoffs for inflammatory biomarkers, fecal calprotectin (FC), C-reactive protein (CRP), and CD Activity Index (CDAI) remission vs CDAI response alone....
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izaa025
更新日期:2020-09-18 00:00:00
abstract:BACKGROUND:Surgery is the preferred option for patients with symptomatic localized fibrostenotic ileocecal Crohn's disease (CD) but not for those with predominantly active inflammation without obstruction. The benefit of early surgery in patients with a limited nonstricturing ileocecal CD over biologic treatment is sti...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izz282
更新日期:2020-10-23 00:00:00
abstract:BACKGROUND:The clinical course of ulcerative colitis (UC) is unpredictable. During recent years, the ability of fecal biomarkers to predict relapse in inflammatory bowel disease has been evaluated. The objective of this study was to assess fecal calprotectin (FC) as a predictor of disease recurrence in patients with ne...
journal_title:Inflammatory bowel diseases
pub_type: 临床试验,杂志文章
doi:10.1097/MIB.0b013e31827e78be
更新日期:2013-03-01 00:00:00
abstract:BACKGROUND:Mucosal expression of interferon (IFN)-γ plays a pivotal role in the pathogenesis of inflammatory bowel disease (IBD) and IBD risk regions flank IFNG. The conserved IFNG rs1861494 T/C introduces a new CpG methylation site, is associated with disease severity and lack of therapeutic response in other infectio...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000172
更新日期:2014-10-01 00:00:00
abstract:BACKGROUND:The optimal management of Clostridium difficile infection (CDI) in flaring inflammatory bowel disease (IBD) patients has not been defined. Limited data suggest that coadministration of immunomodulators (IM) with antibiotics (AB) results in a worse outcome. We investigated the prevalent practice among North A...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.21514
更新日期:2011-07-01 00:00:00
abstract::Gastrointestinal disorders, although clinically heterogeneous, share pathogenic mechanisms, including genetic susceptibility, impaired gut barrier function, altered microbiota, and environmental triggers (infections, social and behavioral factors, epigenetic control, and diet). Gut microbiota has been studied for infl...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1097/MIB.0000000000000602
更新日期:2016-02-01 00:00:00
abstract::Nonalcoholic fatty liver disease (NAFLD) develops in ulcerative colitis (UC) and Crohn's disease. However, there is scarce reporting on the onset of UC in patients with NAFLD. A 44-year-old man was diagnosed with UC and referred to us in 2019. His height was 166.0 cm, and body weight was 86.3 kg. The waist circumferen...
journal_title:Inflammatory bowel diseases
pub_type: 信件
doi:10.1093/ibd/izz208
更新日期:2019-10-18 00:00:00
abstract:BACKGROUND:Noninvasive, sensitive, and specific tools for early identification of chronic inflammatory bowel disease (IBD) are needed for clinical practice. The aim was to identify new noninvasive test combinations for characterization of IBD in children and adolescents by comparing serological responses to microbial a...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20535
更新日期:2009-02-01 00:00:00
abstract:Background:Discontinuation of antitumour necrosis factor (TNF)α therapy with perianal fistulising Crohn's disease remains controversial due to the risk of severe relapse without any clear evidence. Aim:The aim of this study was to assess the rate and type of perianal and luminal relapses following anti-TNFα discontinu...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izy008
更新日期:2018-05-18 00:00:00
abstract:Background:Tumor necrosis factor alpha (TNF-α) inhibitors are linked with increased risk of reactivation of active tuberculosis. The QuantiFERON-TB Gold In-Tube test is approved for screening latent tuberculosis infection in children and adults. There are limited data on the test performance in children on long-term tr...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izx077
更新日期:2018-03-19 00:00:00
abstract::The complex and yet unknown etiology of Crohn's disease (CD) might consist of various disease endophenotypes, each of which represent their own pathogenesis. This review focuses on the disease endophenotype linked to polymorphisms in the nucleotide-binding oligomerization domain containing 2 (NOD2) protein and on the ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1002/ibd.21656
更新日期:2011-11-01 00:00:00
abstract:BACKGROUND:Mesalazine preparations are widely used to treat mild to moderately severe ulcerative colitis (UC). We compared once-daily administration of oral mesalazine in patients with quiescent UC with the established 3-times-daily prescription, assessing the efficacy and safety of each method in maintaining remission...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/MIB.0b013e318286fa3d
更新日期:2013-07-01 00:00:00
abstract:BACKGROUND:The role of antiviral therapy in patients with ulcerative colitis (UC) with cytomegalovirus (CMV) remains unclear. We therefore performed a systematic review and meta-analysis to assess the association between antiviral therapy and the risk of colectomy. METHODS:Multiple electronic databases were searched s...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,meta分析,评审
doi:10.1097/MIB.0000000000000489
更新日期:2015-11-01 00:00:00
abstract:BACKGROUND:Anxiety is linked with adverse health-related outcomes and increased health-seeking behaviors among patients with chronic illness. Yet, this relationship has received little attention in pediatric inflammatory bowel disease. The aim of this study was to examine whether anxiety symptoms predicted youth at inc...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000864
更新日期:2016-09-01 00:00:00
abstract::Inflammatory bowel disease (IBD) is now recognized as a common chronic disease affecting children and adolescents. This article will review recent advances made in the fields of genetics, epidemiology, gut ecology, and immunology regarding the etiopathogenesis of IBD, with particular emphasis on the contributions made...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1097/00054725-200203000-00008
更新日期:2002-03-01 00:00:00
abstract:BACKGROUND:Adipose tissue is recognized as a compartment secreting highly active molecules. Creeping fat represents a characteristic feature of Crohn's disease (CD). Proinflammatory or anti-inflammatory adipose-derived secretory products, now generally called adipocytokines, may play a role in the pathogenesis of CD. ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/00054725-200606000-00005
更新日期:2006-06-01 00:00:00
abstract:BACKGROUND:Inflammatory bowel disease (IBD) has a remitting and relapsing disease course; however, relatively little is understood regarding how inflammatory damage in acute colitis influences the microbiota, epithelial barrier, and immune function in subsequent colitis. METHODS:Mice were administered trinitrobenzene ...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izz011
更新日期:2019-06-18 00:00:00
abstract:BACKGROUND:Current therapy for inflammatory bowel disease (IBD) patients often involves agents that suppress the immune system, placing patients at an increased risk for developing infections, of which several are potentially vaccine preventable. Many IBD patients are not being vaccinated appropriately. The aims of thi...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,随机对照试验
doi:10.1002/ibd.21667
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:Several studies suggest an increased risk of venous and arterial thromboembolism (TE) in adults with inflammatory bowel disease (IBD) compared to the general population. We performed a systematic review of studies on incidence and characteristic of TE in children with IBD. METHODS:We searched Medline, LILAC...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1002/ibd.21563
更新日期:2011-10-01 00:00:00
abstract::Eukaryotic cells take up macromolecules and particles from the surrounding milieu and also internalize membrane proteins via a precise process of endocytosis. The role of endocytosis in diverse physiological processes such as cell adhesion, cell signaling, tissue remodeling, and healing is well recognized. The epithel...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izaa141
更新日期:2021-01-19 00:00:00
abstract:BACKGROUND:Many chronic illnesses are accompanied by impaired cognitive functioning. In people with Inflammatory Bowel Disease (IBD), there is some research to suggest a decrement in verbal IQ (VIQ), when compared to people with Irritable Bowel Syndrome (IBS) and healthy controls. Although this is an important finding,...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20837
更新日期:2009-06-01 00:00:00
abstract:BACKGROUND:We have developed a technique for measuring fecal excretion of human DNA by assuming that luminal desquamation of epithelial and inflammatory cells increases in damaged colonic mucosa. However, the clinical usefulness of this technique in the follow-up of patients with ulcerative colitis has not been establi...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20042
更新日期:2007-04-01 00:00:00
abstract:BACKGROUND:Many treatment options exist for children with inflammatory bowel disease (IBD), yet the lack of clinical guidelines for management has lead to great variation in care. The purpose of this project was to evaluate current treatment modalities in children from the Northeast US who applied to the 2010 session o...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.22837
更新日期:2012-10-01 00:00:00
abstract:BACKGROUND:A/JCr mice develop typhlitis in response to Helicobacter hepaticus infection, whereas C57BL/6 mice coexist with this bacterium in a "commensal" relationship and do not develop disease even during prolonged colonization. METHODS:To determine mechanisms that control this balance between responsiveness and non...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20138
更新日期:2007-07-01 00:00:00
abstract:Background:Social media is commonly used among the adolescent and young adult population, including those with chronic diseases. For adults, these platforms have been shown to be a major source of health information. Our aims were to explore how youth with inflammatory bowel disease (IBD) use social media for (1) disea...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izy021
更新日期:2018-05-18 00:00:00
abstract:BACKGROUND:Activation of cannabinoid (CB)(1) receptors results in attenuation of experimental colitis. Our aim was to examine the role of CB(2) receptors in experimental colitis using agonists (JWH133, AM1241) and an antagonist (AM630) in trinitrobenzene sulfonic acid (TNBS)-induced colitis in wildtype and CB(2) recept...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20960
更新日期:2009-11-01 00:00:00
abstract:BACKGROUND:Endoscopic balloon dilation (EBD) is widely used to manage Crohn's disease-associated strictures. However, most studies of the safety and efficacy are small and heterogenous. We performed a combined analysis of published studies and evaluated 676 comprehensive individual participant data sets to determine th...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,meta分析,评审
doi:10.1097/MIB.0000000000000988
更新日期:2017-01-01 00:00:00
abstract::Corticosteroids are considered a drug of choice for the treatment of patients with moderately to severely active Crohn's disease (CD), an inflammatory bowel disease characterized by chronic recurrent flares of disease activity. However, among patients receiving corticosteroid therapy for induction of remission, 20% ha...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1002/ibd.3780070506
更新日期:2001-05-01 00:00:00
abstract::Our aims were to assess the impact on health-related quality of life (HRQOL) of a controlled ileal release (CIR) formulation of budesonide in active Crohn's disease (CD) and further define the role of HRQOL, using the Inflammatory Bowel Disease Questionnaire (IBDQ), in assessing outcome in CD. A randomized trial was c...
journal_title:Inflammatory bowel diseases
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00054725-200008000-00004
更新日期:2000-08-01 00:00:00