Evidence map›Paper›PMID 21944279›Full record

ArticleThe American journal of pathology2011

Temporal smad7 transgene induction in mouse epidermis accelerates skin wound healing.

Gangwen Han, Fulun Li, Peter Ten Dijke, Xiao-Jing Wang

Open access · bronzeAbstract read
In one paragraph

Article in The American journal of pathology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
4.4field-weighted citation impact, top 6% 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

25 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
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  7. Article
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  10. Article
  11. Regulation of TGF-β Family Signaling by Inhibitory Smads.Cold Spring Harbor perspectives in biology · 2017
    Review
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. CtBP1 overexpression in keratinocytes perturbs skin homeostasis.The Journal of investigative dermatology · 2014
    Article
  18. Article
  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

4 authors at 3 institutions in 3 countries.

Gangwen HanDepartment of Pathology, University of Colorado Denver, Aurora, Colorado; Department of Dermatology, University of Colorado Denver, Aurora, CO 80045-0508, USA.
Fulun Li
Peter Ten Dijke
Xiao-Jing Wang
University of Colorado Denver · USLeiden University Medical Center · NLShanghai University of Traditional Chinese Medicine · CN

Funding

ROLE OF SMADS IN THE EPIDERMIS AND SKIN CARCINOGENESISR01CA087849 · NCI · UNIVERSITY OF COLORADO DENVER · PI WANG, XIAO-JING · 2000 to 2011
$2.7M
TGF BETA SIGNALING AND SKIN CARCINOGENESISR01CA079998 · NCI · UNIVERSITY OF COLORADO DENVER · PI WANG, XIAO-JING · 1999 to 2009
$2.1M
Effects of Altering TGF Beta Signaling on Wound HealingR01AR061792 · NIAMS · UNIVERSITY OF COLORADO DENVER · PI WANG, XIAO-JING · 2011 to 2015
$1.9M
Effects of altering TGF beta signaling on wound healingR01GM070966 · NIGMS · OREGON HEALTH & SCIENCE UNIVERSITY · PI WANG, XIAO-JING · 2004 to 2007
$940k
NCI NIH HHS CA79998NCI NIH HHS CA87849NCI NIH HHS R01 CA079998NCI NIH HHS R01 CA087849NIAMS NIH HHS R01 AR061792NIGMS NIH HHS GM70966NIGMS NIH HHS R01 GM070966
6 · The paper itself

Abstract

The expression of Smad7, a tumor growth factor-β (TGFβ) antagonist, is increased during cutaneous wound healing. To assess this significance, we temporally induced Smad7 transgene expression in wounded skin in gene-switch-Smad7 transgenic (Smad7 tg) mice. Smad7 induction in epidermal keratinocytes caused an increase in keratinocyte proliferation with reduced Smad2 activation, indicating that Smad7 abrogated TGFβ-mediated growth inhibition. Additionally, wounded skin from Smad7 tg mice exhibited accelerated re-epithelialization, with increased activation of extracellular signal-regulated kinase (Erk), and an in vitro migration assay revealed that Erk activation contributed to Smad7-mediated keratinocyte migration. Notably, epidermis-specific Smad7 transgene expression also has a profound effect on the wound stroma, resulting in reduced inflammation, angiogenesis, and production of type I collagen. Reduced Smad2 activation was observed in wounded stroma from Smad7 transgenic (Smad7 tg) mice, possibly owing to fewer infiltrated TGFβ-producing leukocytes compared to those in wounds from control mice. Because Smad7 is not secreted, these effects could reflect functional changes in Smad7 tg keratinocytes. Supporting this notion, the activation of NF-κB, a nonsecreted protein complex that transcriptionally activates inflammatory cytokines, was reduced in wounded epidermis from Smad7 tg mice compared to that in wounded wild-type epidermis. In sum, epidermal Smad7 overexpression accelerated wound healing through its direct effects on keratinocyte proliferation and migration, and through indirect effects on wound stroma.

Indexed as

AnimalsCell MovementCell ProliferationCollagen Type IEnzyme ActivationEpidermisExtracellular Signal-Regulated MAP KinasesInflammationKeratinocytesMiceMice, TransgenicNeovascularization, PhysiologicNF-kappa BSmad7 ProteinTime FactorsTransgenesCollagen Type IExtracellular Signal-Regulated MAP KinasesNF-kappa BSmad7 ProteinSmad7 protein, mouseVascular Endothelial Growth Factor A

Identifiers

PMID21944279
PMCPMC3181395
OpenAlexW2012206763

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.