Article ; Online: Alterations of Prostanoid Expression and Intestinal Epithelial Barrier Functions in Ileus.
The Journal of surgical research
2024 Volume 296, Page(s) 165–173
Abstract: Introduction: Intestinal manipulation (IM)-induced inflammation could contribute to postoperative ileus (POI) pathophysiology via the modulation of prostanoid pathways. To identify the prostanoids involved, we aimed to characterize the profile of ... ...
Abstract | Introduction: Intestinal manipulation (IM)-induced inflammation could contribute to postoperative ileus (POI) pathophysiology via the modulation of prostanoid pathways. To identify the prostanoids involved, we aimed to characterize the profile of prostanoids and their synthesis enzyme expression in a murine model of POI and to determine whether the altered prostanoids could contribute to POI. Methods: Four or 14 h after IM in mice, gastrointestinal (GI) motility and intestinal epithelial barrier (IEB) permeability were assessed in vivo and ex vivo in Ussing chambers. Using high sensitivity liquid chromatography-tandem mass spectrometry, we characterized the tissue profile of polyunsaturated fatty acid metabolites in our experimental model. Finally, we evaluated in vivo the effects of the prostanoids studied upon IM-induced gut dysfunctions. Results: We first showed that 14 h after IM was significantly faster than jejunal transit at 4 h post-IM, although it remained significantly increased compared to the control. In contrast, we showed that IM-induced inflammation increase in jejunum permeability was similar after four and 14 h. We next showed that expression of prostacyclin synthase and hemopoietic prostaglandin-D synthase mRNA and their products were significantly reduced 14 h after IM as compared to controls. Furthermore, 15-deoxy-delta 12,14-Prostaglandin J2 reduced the IM-induced inflammation increase in IEB permeability but had no effect on GI motility. In contrast, PGI Conclusions: Arachidonic acid derivative contributes differentially to GI dysfunction in POI. The decrease of 15-deoxy-delta 12,14-Prostaglandin J2 levels induced by IM could contribute to impaired GI dysfunctions in POI and could be considered as putative therapeutic targets to restore barrier dysfunctions associated with POI. |
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MeSH term(s) | Mice ; Animals ; Prostaglandins/pharmacology ; Ileus/etiology ; Gastrointestinal Motility ; Jejunum ; Postoperative Complications ; Inflammation/metabolism |
Chemical Substances | Prostaglandins |
Language | English |
Publishing date | 2024-01-25 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 80170-7 |
ISSN | 1095-8673 ; 0022-4804 |
ISSN (online) | 1095-8673 |
ISSN | 0022-4804 |
DOI | 10.1016/j.jss.2023.12.018 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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