Evidence map›Paper›PMID 34716325›Full record

ArticleNature communications2021

The serine proteases dipeptidyl-peptidase 4 and urokinase are key molecules in human and mouse scar formation.

Vera Vorstandlechner, Maria Laggner, Dragan Copic, Katharina Klas, Martin Direder, Yiyan Chen, Bahar Golabi, Werner Haslik, Christine Radtke, Erwin Tschachler and 3 more

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 1 pooled it
11.3field-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.

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

50 citing papers in PubMed, 1 synthesis or guideline pooled it, 80 citations in OpenAlex.

  1. Fibroblasts in Scar Formation: Biology and Clinical Translation.Oxidative medicine and cellular longevity · 2022
    Pooled it
  2. [Effect of different degrees of wound eversion sutures on scar formation at donor site of anterolateral thigh flaps: A prospective randomized controlled study].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2024
    Trial
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  12. Burn Selection: How Fire Injury Shaped Human Evolution.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026
    Review
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  19. RestoringFrontiers in cell and developmental biology · 2026
    Article
  20. Article
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

13 authors at 3 institutions in 1 country.

Vera VorstandlechnerLaboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.
Maria LaggnerLaboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.
Dragan CopicLaboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.
Katharina KlasLaboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.
Martin DirederLaboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.
Yiyan ChenDepartment of Dermatology, Medical University of Vienna, Vienna, Austria.
Bahar GolabiDepartment of Dermatology, Medical University of Vienna, Vienna, Austria.
Werner HaslikDepartment of Plastic and Reconstructive Surgery, Medical University of Vienna, Vienna, Austria.
Christine RadtkeDepartment of Plastic and Reconstructive Surgery, Medical University of Vienna, Vienna, Austria.
Erwin TschachlerDepartment of Dermatology, Medical University of Vienna, Vienna, Austria.
Konrad HötzeneckerDepartment of Thoracic Surgery, Medical University of Vienna, Vienna, Austria.
Hendrik Jan Ankersmit *Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, Vienna, Austria. hendrik.ankersmit@meduniwien.ac.at.
Michael Mildner *Department of Dermatology, Medical University of Vienna, Vienna, Austria. michael.mildner@meduniwien.ac.at.ORCID http://orcid.org/0000-0002-6892-925X
Medical University of Vienna · ATHochschule Campus Wien · ATTU Wien · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite recent advances in understanding skin scarring, mechanisms triggering hypertrophic scar formation are still poorly understood. In the present study, we investigate mature human hypertrophic scars and developing scars in mice at single cell resolution. Compared to normal skin, we find significant differences in gene expression in most cell types present in scar tissue. Fibroblasts show the most prominent alterations in gene expression, displaying a distinct fibrotic signature. By comparing genes upregulated in murine fibroblasts during scar development with genes highly expressed in mature human hypertrophic scars, we identify a group of serine proteases, tentatively involved in scar formation. Two of them, dipeptidyl-peptidase 4 (DPP4) and urokinase (PLAU), are further analyzed in functional assays, revealing a role in TGFβ1-mediated myofibroblast differentiation and over-production of components of the extracellular matrix in vitro. Topical treatment with inhibitors of DPP4 and PLAU during scar formation in vivo shows anti-fibrotic activity and improvement of scar quality, most prominently after application of the PLAU inhibitor BC-11. In this study, we delineate the genetic landscape of hypertrophic scars and present insights into mechanisms involved in hypertrophic scar formation. Our data suggest the use of serine protease inhibitors for the treatment of skin fibrosis.

Indexed as

AnimalsCell DifferentiationCicatrixDipeptidyl Peptidase 4Dipeptidyl-Peptidase IV InhibitorsFemaleGene ExpressionHumansMembrane ProteinsMiceMice, Inbred BALB CMyofibroblastsSingle-Cell AnalysisSitagliptin PhosphateTransforming Growth Factor beta1Dipeptidyl Peptidase 4Dipeptidyl-Peptidase IV InhibitorsDPP4 protein, humanDpp4 protein, mouseMembrane ProteinsPLAU protein, humanSitagliptin PhosphateTransforming Growth Factor beta1

Identifiers

PMID34716325
PMCPMC8556235
OpenAlexW3208790822

What Socratic holds

Textmetadata
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 Socratic graph.