Evidence map›Paper›PMID 23336977›Full record

ArticleGastroenterology2013

The unfolded protein response and chemical chaperones reduce protein misfolding and colitis in mice.

Stewart Siyan Cao, Ellen M Zimmermann, Brandy-Mengchieh Chuang, Benbo Song, Anosike Nwokoye, J Erby Wilkinson, Kathryn A Eaton, Randal J Kaufman

Registry-linked trialOpen access · greenAbstract readComparative Study
In one paragraph

Article in Gastroenterology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04114292 (A Phase I Open Label Study of the Efficacy and Safety of Tudca in Ulcerative Colitis), which is not on this map. Cited by 143 papers.

0numbers the graph read from it
0cells of the map it votes in
143citing papers in PubMed
9.6field-weighted citation impact, top 1% of its field
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

The trial behind it

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.

NCT04114292 phase1completednot on this mapstarted 2019, after this paper: background citation

A Phase I Open Label Study of the Efficacy and Safety of Tudca in Ulcerative Colitis

TypeinterventionalSponsorWashington University School of MedicineRan2019 to 2022Enrolled14ConditionsUlcerative ColitisArmsTauroursoursodeoxycholic acid, brand name Tudcabil
3 · Its place in the literature

Who cites it

143 citing papers in PubMed, 231 citations in OpenAlex.

  1. Trial
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  4. Review
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  6. Article
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  8. CNPY2 drives DSS-induced colitis via the macrophage-ROS axis.Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2025
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
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  17. Unveiling the potential ofFrontiers in microbiology · 2025
    Review
  18. Review
  19. Article
  20. Review

83 more citing papers are in PubMed but not listed here.

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

8 authors at 3 institutions in 1 country.

Stewart Siyan CaoDel E. Webb Neuroscience, Aging and Stem Cell Research Center, Sanford Burnham Medical Research Institute, La Jolla, CA 92037, USA.
Ellen M Zimmermann
Brandy-Mengchieh Chuang
Benbo Song
Anosike Nwokoye
J Erby Wilkinson
Kathryn A Eaton
Randal J Kaufman
University of Michigan–Ann Arbor · USSanford Burnham Prebys Medical Discovery Institute · USNGM Biopharmaceuticals (United States) · US

Funding

TRANSGENIC MODELS FOR THE STUDY OF FACTOR V FUNCTIONP01HL057346 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KAUFMAN, RANDAL J. · 1997 to 2013
$19.9M
Regulation of Factor VIII SecretionR01HL052173 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KAUFMAN, RANDAL J. · 1995 to 2014
$6.5M
Role of the Unfolded Protein Response in Beta CellR37DK042394 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KAUFMAN, RANDAL J. · 2007 to 2016
$4.9M
Regulation of ER stress-induced cell deathR01DK088227 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KAUFMAN, RANDAL J. · 2010 to 2014
$3.1M
NHLBI NIH HHS P01 HL057346NHLBI NIH HHS R01 HL052173NIDDK NIH HHS R01 DK088227NIDDK NIH HHS R37 DK042394
6 · The paper itself

Abstract

BACKGROUND &

aimsEndoplasmic reticulum (ER) stress has been associated with development of inflammatory bowel disease. We examined the effects of ER stress-induced chaperone response and the orally active chemical chaperones tauroursodeoxycholate (TUDCA) and 4-phenylbutyrate (PBA), which facilitate protein folding and reduce ER stress, in mice with colitis.

methodsWe used dextran sulfate sodium (DSS) to induce colitis in mice that do not express the transcription factor ATF6α or the protein chaperone P58(IPK). We examined the effects of TUDCA and PBA in cultured intestinal epithelial cells (IECs); in wild-type, P58(IPK-/-), and Atf6α(-/-) mice with colitis; and in Il10(-/-) mice.

resultsP58(IPK-/-) and Atf6α(-/-) mice developed more severe colitis following administration of DSS than wild-type mice. IECs from P58(IPK-/-) mice had excessive ER stress, and apoptotic signaling was activated in IECs from Atf6α(-/-) mice. Inflammatory stimuli induced ER stress signals in cultured IECs, which were reduced by incubation with TUDCA or PBA. Oral administration of either PBA or TUDCA reduced features of DSS-induced acute and chronic colitis in wild-type mice, the colitis that develops in Il10(-/-) mice, and DSS-induced colitis in P58(IPK-/-) and Atf6α(-/-) mice. Reduced signs of colonic inflammation in these mice were associated with significantly decreased ER stress in colonic epithelial cells.

conclusionsThe unfolded protein response induces expression of genes that encode chaperones involved in ER protein folding; these factors prevent induction of colitis in mice. Chemical chaperones such as TUDCA and PBA alleviate different forms of colitis in mice and might be developed for treatment of inflammatory bowel diseases.

Indexed as

Gene Expression RegulationProtein FoldingAnimalsApoptosisCells, CulturedColitisColonDisease Models, AnimalDNAEpithelial CellsIn Situ Nick-End LabelingMiceMice, Inbred C57BLMolecular ChaperonesSignal TransductionUnfolded Protein ResponseDNAMolecular Chaperones

Identifiers

PMID23336977
PMCPMC3751190
OpenAlexW2082418684

What OpenQuestion holds

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Registered trials

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.