Please use this identifier to cite or link to this item:
http://hdl.handle.net/1942/26421
Title: | Biopsy-derived Intestinal Epithelial Cell Cultures for Pathway-based Stratification of Patients With Inflammatory Bowel Disease | Authors: | Vanhove, Wiebe Nys, Kris ARIJS, Ingrid Cleynen, Isabelle Noben, Manuel De Schepper, Sebastiaan Van Assche, Gert Ferrante, Marc Vermeire, Severine |
Issue Date: | 2018 | Source: | JOURNAL OF CROHNS & COLITIS, 12(2), p. 178-187 | Abstract: | Background: Endoplasmic reticulum [ER] stress was shown to be pivotal in the pathogenesis of inflammatory bowel disease. Despite progress in inflammatory bowel disease [IBD] drug development, not more than one-third of patients achieve steroid-free remission and mucosal healing with current therapies. Furthermore, patient stratification tools for therapy selection are lacking. We aimed to identify and quantify epithelial ER stress in a patient-specific manner in an attempt towards personalised therapy. Methods: A biopsy-derived intestinal epithelial cell culture system was developed and characterised. ER stress was induced by thapsigargin and quantified with a BiP enzyme-linked immunosorbent assay [ELISA] of cell lysates from 35 patients with known genotypes, who were grouped based on the number of IBD-associated ER stress and autophagy risk alleles. Results: The epithelial character of the cells was confirmed by E-cadherin, ZO-1, and MUC2 staining and CK-18, CK-20, and LGR5 gene expression. Patients with three risk alleles had higher median epithelial BiP-induction [vs untreated] levels compared with patients with one or two risk alleles [p = 0.026 and 0.043, respectively]. When autophagy risk alleles were included and patients were stratified in genetic risk quartiles, patients in Q2, Q3, and Q4 had significantly higher ER stress [BiP] when compared with Q1 [p = 0.034, 0.040, and 0.034, respectively]. Conclusions: We developed and validated an ex vivo intestinal epithelial cell culture system and showed that patients with more ER stress and autophagy risk alleles have augmented epithelial ER stress responses. We thus presented a personalised approach whereby patient-specific defects can be identified, which in turn could help in selecting tailored therapies. | Notes: | Vermeire, S (reprint author), Univ Hosp Leuven, Dept Gastroenterol & Hepatol, Herestr 49-701, B-3000 Leuven, Belgium. Severine.Vermeire@uzleuven.be | Keywords: | IBD; ER stress; epithelial cell culture | Document URI: | http://hdl.handle.net/1942/26421 | ISSN: | 1873-9946 | e-ISSN: | 1876-4479 | DOI: | 10.1093/ecco-jcc/jjx122 | ISI #: | 000423703000006 | Rights: | Copyright © 2017 European Crohn’s and Colitis Organisation (ECCO). | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2019 |
Appears in Collections: | Research publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
vanhove2017.pdf Restricted Access | Published version | 3.76 MB | Adobe PDF | View/Open Request a copy |
SCOPUSTM
Citations
4
checked on Sep 2, 2020
WEB OF SCIENCETM
Citations
14
checked on Oct 13, 2024
Page view(s)
94
checked on Sep 7, 2022
Download(s)
78
checked on Sep 7, 2022
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.