Intestinal Mucosal Barrier Is Injured by BMP24 via Activation of NF- κ B Signals after Ischemic Reperfusion
Joint Authors
Chen, Kang
Xie, Wei
Luo, Binyu
Xiao, Weidong
Teitelbaum, Daniel H.
Yang, Hua
Zhang, Kebin
Zhang, Chaojun
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-16
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Intestinal ischemic reperfusion (I/R) can cause dysfunction of the intestinal mucosal barrier; however, the mechanism of the intestinal mucosal barrier dysfunction caused by I/R remains unclear.
In this study, using intestinal epithelial cells under anaerobic cultivation and an in vivo rat intestinal I/R model, we found that hypoxia and I/R increased the expression of BMP2/4 and upregulated BMP type Ia receptor and BMP type II receptor expression.
We also found that exogenous BMP2/4 can activate the ERK and AKT signaling pathways in rat small intestine (IEC-6) cells, thereby activating NF- κ B signaling, which leads to increased levels of inflammatory factors, such as TNF- α and IL-6.
Furthermore, recombinant BMP2/4 decreased the expression of the tight junction protein occludin via the activation of the NF- κ B pathway; these effects were abolished by treatment with the BMP-specific antagonist noggin or the NF- κ B inhibitor pyrrolidine dithiocarbamate (PDTC).
All these factors can destroy the intestinal mucosal barrier, thereby leading to weaker barrier function.
On the basis of these data, we conclude that BMP2/4 may act as the pathogenic basis for intestinal mucosal barrier dysfunction when the intestines suffer an I/R injury.
Our results provide background for the development pharmacologic interventions in the management of I/R injury.
American Psychological Association (APA)
Chen, Kang& Xie, Wei& Luo, Binyu& Xiao, Weidong& Teitelbaum, Daniel H.& Yang, Hua…[et al.]. 2014. Intestinal Mucosal Barrier Is Injured by BMP24 via Activation of NF- κ B Signals after Ischemic Reperfusion. Mediators of Inflammation،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1043872
Modern Language Association (MLA)
Chen, Kang…[et al.]. Intestinal Mucosal Barrier Is Injured by BMP24 via Activation of NF- κ B Signals after Ischemic Reperfusion. Mediators of Inflammation No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-1043872
American Medical Association (AMA)
Chen, Kang& Xie, Wei& Luo, Binyu& Xiao, Weidong& Teitelbaum, Daniel H.& Yang, Hua…[et al.]. Intestinal Mucosal Barrier Is Injured by BMP24 via Activation of NF- κ B Signals after Ischemic Reperfusion. Mediators of Inflammation. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1043872
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1043872