Evidence map›Paper›PMID 20064200›Full record

ArticleArthritis research & therapy2010

The effect of the pro-inflammatory cytokine tumor necrosis factor-alpha on human joint capsule myofibroblasts.

Stefan G Mattyasovszky, Alexander Hofmann, Christoph Brochhausen, Ulrike Ritz, Sebastian Kuhn, Jochen Wollstädter, Hendrik Schulze-Koops, Lars P Müller, Bernhard Watzer, Pol M Rommens

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.9field-weighted citation impact, top 7% 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

18 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
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  4. Review
  5. Article
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  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Post-traumatic stiff elbow.EFORT open reviews · 2018
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Fibrotic and sclerotic manifestations of chronic graft-versus-host disease.Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation · 2012
    Review
  18. Posttraumatic stiff elbow.Indian journal of orthopaedics
    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 2 institutions in 1 country.

Stefan G MattyasovszkyDepartment of Trauma and Orthopaedic Surgery, Johannes Gutenberg University School of Medicine, Langenbeckstr, 1, 55101 Mainz, Germany. Stefan.Mattyasovszky@gmx.de
Alexander Hofmann
Christoph Brochhausen
Ulrike Ritz
Sebastian Kuhn
Jochen Wollstädter
Hendrik Schulze-Koops
Lars P Müller
Bernhard Watzer
Pol M Rommens
Johannes Gutenberg University Mainz · DELudwig-Maximilians-Universität München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPrevious studies have shown that the number of myoblastically differentiated fibroblasts known as myofibroblasts (MFs) is significantly increased in stiff joint capsules, indicating their crucial role in the pathogenesis of post-traumatic joint stiffness. Although the mode of MFs' function has been well defined for different diseases associated with tissue fibrosis, the underlying mechanisms of their regulation in the pathogenesis of post-traumatic joint capsule contracture are largely unknown.

methodsIn this study, we examined the impact of the pro-inflammatory cytokine tumor necrosis factor-alpha (TNF-alpha) on cellular functions of human joint capsule MFs. MFs were challenged with different concentrations of TNF-alpha with or without both its specifically inactivating antibody infliximab (IFX) and cyclooxygenase-2 (COX2) inhibitor diclofenac. Cell proliferation, gene expression of both alpha-smooth muscle actin (alpha-SMA) and collagen type I, the synthesis of prostaglandin derivates E2, F1A, and F2A, as well as the ability to contract the extracellular matrix were assayed in monolayers and in a three-dimensional collagen gel contraction model. The alpha-SMA and COX2 protein expressions were evaluated by immunofluorescence staining and Western blot analysis.

resultsThe results indicate that TNF-alpha promotes cell viability and proliferation of MFs, but significantly inhibits the contraction of the extracellular matrix in a dose-dependent manner. This effect was associated with downregulation of alpha-SMA and collagen type I by TNF-alpha application. Furthermore, we found a significant time-dependent upregulation of prostaglandin E2 synthesis upon TNF-alpha treatment. The effect of TNF-alpha on COX2-positive MFs could be specifically prevented by IFX and partially reduced by the COX2 inhibitor diclofenac.

conclusionsOur results provide evidence that TNF-alpha specifically modulates the function of MFs through regulation of prostaglandin E2 synthesis and therefore may play a crucial role in the pathogenesis of joint capsule contractures.

Indexed as

ActinsAgedAntibodies, MonoclonalAntirheumatic AgentsBlotting, WesternCell ProliferationCells, CulturedCollagen Type IContractureCyclooxygenase 2Cyclooxygenase 2 InhibitorsCytokinesDiclofenacDinoprostDinoprostoneElbow JointActinsAntibodies, MonoclonalAntirheumatic AgentsCollagen Type ICyclooxygenase 2Cyclooxygenase 2 InhibitorsCytokinesDiclofenacDinoprostDinoprostoneInflammation MediatorsInfliximabprostaglandin F1Prostaglandins FTumor Necrosis Factor-alpha

Identifiers

PMID20064200
PMCPMC2875629
OpenAlexW2153459673

What OpenQuestion holds

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LicenceCC BY
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.