Evidence map›Paper›PMID 40247380›Full record

ArticleBiology direct2025

Gliadin-dependent UPR induction directly triggers the expression of TG2 and pro-inflammatory cytokines, dysregulates intestinal permeability, and reduces CFTR expression in intestinal epithelial cells of celiac disease patients.

Romina Monzani, Mara Gagliardi, Valentina Saverio, Nausicaa Clemente, Alice Monzani, Ivana Rabbone, Francesca Nigrelli, Samuele Pellizzaro, Emanuele Ferrario, Silvia Saettone and 5 more

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Article in Biology direct, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors.

Romina MonzaniDepartment of Health Sciences, School of Medicine, Center for Translational Research on Autoimmune and Allergic Disease (CAAD), University of Piemonte Orientale, Novara, Italy.
Mara GagliardiDepartment of Health Sciences, School of Medicine, Center for Translational Research on Autoimmune and Allergic Disease (CAAD), University of Piemonte Orientale, Novara, Italy.
Valentina SaverioDepartment of Health Sciences, School of Medicine, Center for Translational Research on Autoimmune and Allergic Disease (CAAD), University of Piemonte Orientale, Novara, Italy.
Nausicaa ClementeInterdisciplinary Research Center of Autoimmune Diseases (IRCAD), University of Piemonte Orientale, Novara, Italy.
Alice MonzaniDivision of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy.
Ivana RabboneDivision of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy.
Francesca NigrelliDepartment of Health Sciences, School of Medicine, Center for Translational Research on Autoimmune and Allergic Disease (CAAD), University of Piemonte Orientale, Novara, Italy.
Samuele PellizzaroDepartment of Life Sciences, University of Trieste, Trieste, 34127, Italy.
Emanuele FerrarioDepartment of Health Sciences, School of Medicine, Center for Translational Research on Autoimmune and Allergic Disease (CAAD), University of Piemonte Orientale, Novara, Italy.
Silvia SaettoneGastroenterology Unit, Department of Oncological and Specialty Medicine, University Hospital Maggiore della Carità, Novara, Italy.
Nico PaganoGastroenterology Unit, Department of Oncological and Specialty Medicine, University Hospital Maggiore della Carità, Novara, Italy.
Luigina De LeoInstitute for Maternal and Child Health, I.R.C.C.S. Burlo Garofolo, Trieste, Italy.
Dmitry LimDepartment of Pharmaceutical Sciences, University of Piemonte Orientale, Novara, Italy.
Daniele SblatteroDepartment of Life Sciences, University of Trieste, Trieste, 34127, Italy.
Marco CorazzariDepartment of Health Sciences, School of Medicine, Center for Translational Research on Autoimmune and Allergic Disease (CAAD), University of Piemonte Orientale, Novara, Italy. marco.corazzari@uniupo.it.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCeliac disease (CD) is an autoimmune disorder that primarily affects the gut of genetically predisposed individuals and is triggered by gliadin peptides (PT) produced by the digestion of gluten. Although inappropriate activation of the immune system is thought to be the main trigger of CD, the interaction between PT and intestinal epithelial cells (IECs) remains a key step. Recently, the possible involvement of ER stress in the pathogenesis of CD has been pointed out, although its role is still largely unclear. Therefore, discovering the molecular mechanism(s) activated in IECs exposed to PT represents a unique opportunity to better understand the disease and define new potential therapeutic targets.

methodsIn this study we used three different experimental set-ups: intestinal biopsies from CD patients and non-CD control subjects, an in vitro model, based on human CaCo-2 cells, and an ex vivo model, based on our recently described mouse gut-ex-vivo system (GEVS), with the latter two systems were studied after stimulation with gliadin peptides (PT). To understand the signaling pathways involved we monitor the expression of a number of proteins by qPCR, Western blotting, IF, ELISA or a combination of tests. Specifically, we have analyzed the level of CD, ER stress, tissue permeability, and inflammation markers.

resultsIndeed, our study demonstrated a prompt induction of the transcription factors ATF4, ATF6 and XBP1 in IECs upon PT exposure. Thus, the upregulation of TG2 and downregulation of CFTR were prevented by ER stress inhibition/buffering by a pharmacological chaperone, also leading to restored physiological expression of OCL, CLD-2 and CLD-15, while preventing the expression of IFNγ, IL-15 and IL-17 A.

conclusionOverall, our analysis has highlighted the key role of ER stress in the pathogenesis of CD and identified the chemical chaperones as a new potential valuable therapeutic treatment for CD patients.

Indexed as

Celiac DiseaseCystic Fibrosis Transmembrane Conductance RegulatorCytokinesGliadinGTP-Binding ProteinsIntestinal MucosaTransglutaminasesUnfolded Protein ResponseAnimalsCaco-2 CellsEndoplasmic Reticulum StressEpithelial CellsHumansIntestinal Barrier FunctionMaleMiceCFTR protein, humanCystic Fibrosis Transmembrane Conductance RegulatorCytokinesGliadinGTP-Binding ProteinsProtein Glutamine gamma Glutamyltransferase 2TransglutaminasesCDChemical chaperoneEndoplasmic reticulum stressIECUPR

Identifiers

PMID40247380
PMCPMC12007252

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.