Evidence map›Paper›PMID 25034594›Full record

ArticleThe American journal of pathology2014

Targeting mitochondria-derived reactive oxygen species to reduce epithelial barrier dysfunction and colitis.

Arthur Wang, Åsa V Keita, Van Phan, Catherine M McKay, Ida Schoultz, Joshua Lee, Michael P Murphy, Maria Fernando, Natalie Ronaghan, Dale Balce and 6 more

Open access · hybridAbstract read
In one paragraph

Article in The American journal of pathology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 102 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
102citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 4% 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.

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

102 citing papers in PubMed, 1 synthesis or guideline pooled it, 165 citations in OpenAlex.

  1. Role of Mitochondria in Inflammatory Bowel Diseases: A Systematic Review.International journal of molecular sciences · 2023
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42 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

16 authors at 4 institutions in 3 countries.

Arthur WangGastrointestinal Research Group, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada; Inflammation Research Network, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada.
Åsa V KeitaDepartment of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden; Department of Surgery, County Council of Östergötland, Linköping, Sweden.
Van PhanGastrointestinal Research Group, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada; Inflammation Research Network, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada.
Catherine M McKayGastrointestinal Research Group, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada.
Ida SchoultzNutrition-Gut-Brain Interactions Research Centre, the Faculty of Medicine, Örebro University, Örebro, Sweden.
Joshua LeeGastrointestinal Research Group, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada.
Michael P MurphyMRC-Mitochondrial Biology Unit, Cambridge, United Kingdom.
Maria FernandoGastrointestinal Research Group, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada; Inflammation Research Network, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada.
Natalie RonaghanGastrointestinal Research Group, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada; Inflammation Research Network, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada.
Dale BalceDepartment of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada.
Robin YatesDepartment of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta, Canada.
Michael DicayGastrointestinal Research Group, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada; Inflammation Research Network, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada.
Paul L BeckGastrointestinal Research Group, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada; Department of Medicine, University of Calgary, Calgary, Alberta, Canada.
Wallace K MacNaughtonGastrointestinal Research Group, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada; Inflammation Research Network, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada.
Johan D SöderholmDepartment of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden; Department of Surgery, County Council of Östergötland, Linköping, Sweden.
Derek M McKayGastrointestinal Research Group, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada; Inflammation Research Network, Department of Physiology and Pharmacology, Calvin, Phoebe, and Joan Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada. Electronic address: dmckay@ucalgary.ca.
University of Calgary · CALinköping University · SEMRC Mitochondrial Biology Unit · GBÖrebro University · SE

Funding

CIHR MPO 126005Medical Research Council MC_U105663142
6 · The paper itself

Abstract

Epithelial permeability is often increased in inflammatory bowel diseases. We hypothesized that perturbed mitochondrial function would cause barrier dysfunction and hence epithelial mitochondria could be targeted to treat intestinal inflammation. Mitochondrial dysfunction was induced in human colon-derived epithelial cell lines or colonic biopsy specimens using dinitrophenol, and barrier function was assessed by transepithelial flux of Escherichia coli with or without mitochondria-targeted antioxidant (MTA) cotreatment. The impact of mitochondria-targeted antioxidants on gut permeability and dextran sodium sulfate (DSS)-induced colitis in mice was tested. Mitochondrial superoxide evoked by dinitrophenol elicited significant internalization and translocation of E. coli across epithelia and control colonic biopsy specimens, which was more striking in Crohn's disease biopsy specimens; the mitochondria-targeted antioxidant, MitoTEMPO, inhibited these barrier defects. Increased gut permeability and reduced epithelial mitochondrial voltage-dependent anion channel expression were observed 3 days after DSS. These changes and the severity of DSS-colitis were reduced by MitoTEMPO treatment. In vitro DSS-stimulated IL-8 production by epithelia was reduced by MitoTEMPO. Metabolic stress evokes significant penetration of commensal bacteria across the epithelium, which is mediated by mitochondria-derived superoxide acting as a signaling, not a cytotoxic, molecule. MitoTEMPO inhibited this barrier dysfunction and suppressed colitis in DSS-colitis, likely via enhancing barrier function and inhibiting proinflammatory cytokine production. These novel findings support consideration of MTAs in the maintenance of epithelial barrier function and the management of inflammatory bowel diseases.

Indexed as

AnimalsAntioxidantsColitisDisease Models, AnimalHumansIntestinal MucosaMaleMiceMice, Inbred BALB CMitochondriaPermeabilityReactive Oxygen SpeciesReverse Transcriptase Polymerase Chain ReactionAntioxidantsReactive Oxygen Species

Identifiers

PMID25034594
PMCPMC4188172
OpenAlexW2102327965

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.