Expression of HMGCS2 in intestinal epithelial cells is downregulated in inflammatory bowel disease associated with endoplasmic reticulum stress.
ER stress
HMGCS2
inflammation
inflammatory bowel disease
unfolded protein response (UPR)
Journal
Frontiers in immunology
ISSN: 1664-3224
Titre abrégé: Front Immunol
Pays: Switzerland
ID NLM: 101560960
Informations de publication
Date de publication:
2023
2023
Historique:
received:
13
03
2023
accepted:
05
06
2023
medline:
18
7
2023
pubmed:
17
7
2023
entrez:
17
7
2023
Statut:
epublish
Résumé
The Unfolded Protein Response, a mechanism triggered by the cell in response to Endoplasmic reticulum stress, is linked to inflammatory responses. Our aim was to identify novel Unfolded Protein Response-mechanisms that might be involved in triggering or perpetuating the inflammatory response carried out by the Intestinal Epithelial Cells in the context of Inflammatory Bowel Disease. We analyzed the transcriptional profile of human Intestinal Epithelial Cell lines treated with an Endoplasmic Reticulum stress inducer (thapsigargin) and/or proinflammatory stimuli. Several genes were further analyzed in colonic biopsies from Ulcerative Colitis patients and healthy controls. Lastly, we generated Caco-2 cells lacking HMGCS2 by CRISPR Cas-9 and analyzed the functional implications of its absence in Intestinal Epithelial Cells. Exposure to a TLR ligand after thapsigargin treatment resulted in a powerful synergistic modulation of gene expression, which led us to identify new genes and pathways that could be involved in inflammatory responses linked to the Unfolded Protein Response. Key differentially expressed genes in the array also exhibited transcriptional alterations in colonic biopsies from active Ulcerative Colitis patients, including NKG2D ligands and the enzyme HMGCS2. Moreover, functional studies showed altered metabolic responses and epithelial barrier integrity in HMGCS2 deficient cell lines. We have identified new genes and pathways that are regulated by the Unfolded Protein Response in the context of Inflammatory Bowel Disease including
Identifiants
pubmed: 37457727
doi: 10.3389/fimmu.2023.1185517
pmc: PMC10348483
doi:
Substances chimiques
Thapsigargin
67526-95-8
HMGCS2 protein, human
0
Hydroxymethylglutaryl-CoA Synthase
EC 2.3.3.10
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1185517Informations de copyright
Copyright © 2023 Martín-Adrados, Wculek, Fernández-Bravo, Torres-Ruiz, Valle-Noguera, Gomez-Sánchez, Hernández-Walias, Ferreira, Corraliza, Sancho, Esteban, Rodriguez-Perales, Cruz-Adalia, Nakaya, Salas, Bernardo, Campos-Martín, Martínez-Zamorano, Muñoz-López, Gómez del Moral, Cubero, Blumberg and Martínez-Naves.
Déclaration de conflit d'intérêts
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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