Abstract:
BACKGROUND:Inflammatory bowel diseases (IBDs) are characterized by various degrees of mucosal surface damage and subsequent impairment of the intestinal barrier function. Resealing of the epithelial barrier requires intestinal cell migration and proliferation. Galectins are increasingly recognized as novel regulators of inflammation. Thus, we aimed to explore the effect of galectin-2 (Gal-2) and Gal-4 on epithelial cell function and wound healing. METHODS:Binding of Gal-2 and Gal-4 was determined by flow cytometric analysis and binding sites by SDS-PAGE electrophoresis. Cell migration by Gal-1, -2, and -4 was determined by a wound-healing assay. Cell cycle analysis and detection of apoptosis were determined by flow cytometric analysis. RESULTS:Gal-2 and Gal-4 bind to epithelial cells at the E-cadherin/beta-catenin complex. Both galectins significantly enhanced intestinal epithelial cell restitution in vitro. This enhancement of epithelial cell restitution was TGF-beta-independent. In contrast, Gal-1 decreased epithelial cell migration TGF-beta dependently. By performing cell cycle analysis, we show that Gal-2 and Gal-4 increased cyclin B1 expression and consequently cell cycle progression, while Gal-1 inhibited cell cycling. Determining the influence of Gal-2 and Gal-4 on epithelial cell apoptosis, we showed no induction of apoptosis, whereas Gal-1 significantly induced apoptosis of epithelial cells caspase-independently. CONCLUSIONS:Gal-2 and Gal-4 bind to intestinal epithelial cells and promote their restitution. Thus, our study provides for the first time evidence that these galectins play a significant role in intestinal wound-healing processes and might exert beneficial effects in diseases characterized by epithelial barrier disruption like IBDs.
journal_name
Inflamm Bowel Disjournal_title
Inflammatory bowel diseasesauthors
Paclik D,Lohse K,Wiedenmann B,Dignass AU,Sturm Adoi
10.1002/ibd.20499subject
Has Abstractpub_date
2008-10-01 00:00:00pages
1366-72issue
10eissn
1078-0998issn
1536-4844journal_volume
14pub_type
杂志文章abstract:BACKGROUND:Under experimental chronic inflammation, tumor necrosis factor (TNF)-alpha plays a role in damaging spleen marginal zone. This latter has a crucial function in mounting B cell-dependent immune responses against infections by encapsulated bacteria. In Crohn's disease (CD), a chronic inflammatory disorder wher...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
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journal_title:Inflammatory bowel diseases
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,meta分析
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更新日期:2018-04-23 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
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更新日期:2015-03-01 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
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更新日期:1998-05-01 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000926
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pub_type: 杂志文章
doi:10.1093/ibd/izz144
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/00054725-200403000-00008
更新日期:2004-03-01 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0b013e318281341b
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1097/00054725-200407000-00023
更新日期:2004-07-01 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izy234
更新日期:2018-10-12 00:00:00
abstract::Induction and maintenance of remission, mucosal healing, the avoidance of surgical intervention, and decreasing the likelihood of cancer developing are the primary therapeutic goals in ulcerative colitis (UC). For the traditional therapies, 5-aminosalicylic acid (including mesalamine), corticosteroids, and thiopurines...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1002/ibd.20797
更新日期:2009-06-01 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.23006
更新日期:2013-01-01 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20851
更新日期:2009-06-01 00:00:00
abstract:BACKGROUND:Evaluating structural damage using imaging is essential for the evaluation of small intestinal Crohn's disease (CD), but it is limited by potential interobserver variation. We compared the agreement of enterography-based bowel damage measurements collected by experienced radiologists and a semi-automated ima...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1093/ibd/izz196
更新日期:2020-04-11 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1002/ibd.20044
更新日期:2007-05-01 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/01.mib.0000165115.18310.e7
更新日期:2005-07-01 00:00:00
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pub_type: 杂志文章
doi:10.1002/ibd.21652
更新日期:2011-12-01 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000773
更新日期:2016-06-01 00:00:00
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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
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:
更新日期:1997-07-01 00:00:00
abstract:BACKGROUND:Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gastrointestinal tract, which is currently treated with injected monoclonal antibodies specific for tumor necrosis factor (TNF). We developed and characterized AVX-470, a novel polyclonal antibody specific for human TNF. We evaluated t...
journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0b013e3182a11958
更新日期:2013-10-01 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000144
更新日期:2014-09-01 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章,评审
doi:10.1097/MIB.0000000000000685
更新日期:2016-05-01 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 杂志文章
doi:10.1097/MIB.0000000000000545
更新日期:2015-12-01 00:00:00
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journal_title:Inflammatory bowel diseases
pub_type: 临床试验,杂志文章
doi:10.1097/MIB.0000000000000138
更新日期:2014-10-01 00:00:00