Evidence map›Paper›PMID 26018562›Full record

ArticleArthritis research & therapy2015

Laminin-rich blood vessels display activated growth factor signaling and act as the proliferation centers in Dupuytren's contracture.

Janeli Viil, Katre Maasalu, Kristina Mäemets-Allas, Liis Tamming, Kadi Lõhmussaar, Mikk Tooming, Sulev Ingerpuu, Aare Märtson, Viljar Jaks

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.4field-weighted citation impact, top 13% 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

12 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Embryonic Stem Cell-like Population in Dupuytren's Disease.Plastic and reconstructive surgery. Global open · 2016
    Article
  11. Article
  12. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 2 countries.

Janeli ViilInstitute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010, Tartu, Estonia. janeli.viil@ut.ee.
Katre MaasaluDepartment of Traumatology and Orthopedics, Tartu University Hospital, Puusepa 8, 51014, Tartu, Estonia. katre.maasalu@kliinikum.ee.
Kristina Mäemets-AllasInstitute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010, Tartu, Estonia. kristina902@gmail.com.
Liis TammingInstitute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010, Tartu, Estonia. liis.tamming@gmail.com.
Kadi LõhmussaarInstitute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010, Tartu, Estonia. kadil6hmussaar@gmail.com.
Mikk ToomingInstitute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010, Tartu, Estonia. mikktooming@gmail.com.
Sulev IngerpuuInstitute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010, Tartu, Estonia. suling@ebc.ee.
Aare MärtsonDepartment of Traumatology and Orthopedics, Tartu University Hospital, Puusepa 8, 51014, Tartu, Estonia. aare.martson@kliinikum.ee.
Viljar JaksInstitute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010, Tartu, Estonia. viljar.jaks@ut.ee.
University of Tartu · EETartu University Hospital · EEKarolinska Institutet · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDupuytren's contracture (DC) is a chronic fibroproliferative disease of the hand, which is characterized by uncontrolled proliferation of atypical myofibroblasts at the cellular level. We hypothesized that specific areas of the DC tissue are sustaining the cell proliferation and studied the potential molecular determinants that might contribute to the formation of such niches.

methodsWe studied the expression pattern of cell proliferation marker Ki67, phosphorylated AKT (Ak mouse strain thymoma) kinase, DC-associated growth factors (connective tissue growth factor (CTGF), basic fibroblast growth factor (bFGF), insulin-like growth factor 2 (IGF-2)) and extracellular matrix components (laminins, fibronectin, collagen IV) in DC tissue and normal palmar fascia using immunofluorescence microscopy and quantitative real-time polymerase chain reaction (qPCR).

resultsWe found that proliferative cells in the DC nodules were concentrated in the immediate vicinity of small blood vessels and localized predominantly in the myofibroblast layer. Correspondingly, the DC-associated blood vessels contained increased levels of phosphorylated AKT, a hallmark of activated growth factor signaling. When studying the expression of potential activators of AKT signaling we found that the expression of bFGF was confined to the endothelium of the small blood vessels, IGF-2 was present uniformly in the DC tissue and CTGF was expressed in the DC-associated sweat gland acini. In addition, the blood vessels in DC nodules contained increased amounts of laminins 511 and 521, which have been previously shown to promote the proliferation and stem cell properties of different cell types.

conclusionsBased on our findings, we propose that in the DC-associated small blood vessels the presence of growth factors in combination with favorable extracellular matrix composition provide a supportive environment for sustained proliferation of myofibroblasts and thus the blood vessels play an important role in DC pathogenesis.

Indexed as

Blood VesselsCell ProliferationDupuytren ContractureFasciaHumansIntercellular Signaling Peptides and ProteinsLamininMicroscopy, FluorescenceReal-Time Polymerase Chain ReactionSignal TransductionIntercellular Signaling Peptides and ProteinsLaminin

Identifiers

PMID26018562
PMCPMC4475288
OpenAlexW1526912966

What OpenQuestion holds

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LicenceCC BY
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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.