Evidence map›Paper›PMID 22878839›Full record

ArticleJournal of clinical immunology2013

Are transglutaminase 2 inhibitors able to reduce gliadin-induced toxicity related to celiac disease? A proof-of-concept study.

Tiina Rauhavirta, Mikko Oittinen, Rami Kivistö, Pekka T Männistö, J Arturo Garcia-Horsman, Zhuo Wang, Martin Griffin, Markku Mäki, Katri Kaukinen, Katri Lindfors

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of clinical immunology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.3field-weighted citation impact, top 8% 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

20 citing papers in PubMed, 50 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. MAGI2 Gene Region and Celiac Disease.Frontiers in nutrition · 2019
    Article
  12. Novel Nondietary Therapies for Celiac Disease.Cellular and molecular gastroenterology and hepatology · 2019
    Review
  13. Review
  14. Article
  15. Article
  16. Non-dietary methods in the treatment of celiac disease.Przeglad gastroenterologiczny · 2015
    Review
  17. Review
  18. Latest in vitro and in vivo models of celiac disease.Expert opinion on drug discovery · 2013
    Review
  19. Article
  20. Review
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

10 authors at 5 institutions in 2 countries.

Tiina RauhavirtaPediatric Research Center, University of Tampere and Tampere University Hospital, Tampere, 33014, Finland.
Mikko Oittinen
Rami Kivistö
Pekka T Männistö
J Arturo Garcia-Horsman
Zhuo Wang
Martin Griffin
Markku Mäki
Katri Kaukinen
Katri Lindfors
Tampere University Hospital · FIUniversity of Helsinki · FIAston University · GBTampere University · FITampere University · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeCeliac disease is an autoimmune-mediated enteropathy characterized by adaptive and innate immune responses to dietary gluten in wheat, rye and barley in genetically susceptible individuals. Gluten-derived gliadin peptides are deamidated by transglutaminase 2 (TG2), leading to an immune response in the small-intestinal mucosa. TG2 inhibitors have therefore been suggested as putative drugs for celiac disease. In this proof-of-concept study we investigated whether two TG2 inhibitors, cell-impermeable R281 and cell-permeable R283, can prevent the toxic effects of gliadin in vitro and ex vivo.

methodsIntestinal epithelial Caco-2 cells were treated with peptic-tryptic-digested gliadin (PT-gliadin) with or without TG2 inhibitors and thereafter direct toxic effects (transepithelial resistance, cytoskeletal rearrangement, junction protein expression and phoshorylation of extracellular-signal-regulated kinase 1/2) were determined. In an organ culture of celiac-patient-derived small-intestinal biopsies we measured secretion of TG2-autoantibodies into the culture medium and the densities of CD25- and interleukin (IL) 15-positive cells, forkhead box P3 (FOXP3)-positive regulatory T cells (Tregs) and Ki-67-positive proliferating crypt cells.

resultsBoth TG2 inhibitors evinced protective effects against gliadin-induced detrimental effects in Caco-2 cells but the cell-impermeable R281 seemed slightly more potent. In addition, TG2 inhibitor R281 modified the gluten-induced increase in CD25- and IL15-positive cells, Tregs and crypt cell proliferation, but had no effect on antibody secretion in celiac-patient-derived biopsies.

conclusionsOur results suggest that TG2 inhibitors are able to reduce certain gliadin-induced effects related to responses in vitro and ex vivo.

Indexed as

Caco-2 CellsCeliac DiseaseDown-RegulationGliadinGlutensGTP-Binding ProteinsHumansIntestinal MucosaOrgan Culture TechniquesPilot ProjectsProtein Glutamine gamma Glutamyltransferase 2TransglutaminasesUp-RegulationGliadinGlutensGTP-Binding ProteinsProtein Glutamine gamma Glutamyltransferase 2Transglutaminases

Identifiers

PMID22878839
OpenAlexW2007604733

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.