Evidence map›Paper›PMID 18373736›Full record

ArticleJournal of cellular and molecular medicine2008

Deregulation of keratinocyte differentiation and activation: a hallmark of venous ulcers.

Olivera Stojadinovic, Irena Pastar, Sasa Vukelic, My G Mahoney, Donna Brennan, Agata Krzyzanowska, Michael Golinko, Harold Brem, Marjana Tomic-Canic

Open access · bronzeAbstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 1 pooled it
4.0field-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

76 citing papers in PubMed, 1 synthesis or guideline pooled it, 146 citations in OpenAlex.

  1. Transcriptomics in Venous Leg Ulcers (VLU): A Systematic Review.Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society
    Pooled it
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  15. Acute Inflammation in Tissue Healing.International journal of molecular sciences · 2022
    Review
  16. Review
  17. Cellular Senescence in Acute and Chronic Wound Repair.Cold Spring Harbor perspectives in biology · 2022
    Review
  18. Review
  19. Article
  20. Review

16 more citing papers are in PubMed but not listed here.

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

9 authors at 3 institutions in 1 country.

Olivera StojadinovicHospital for Special Surgery of the Weill Cornell Medical College, Tissue Repair Lab, New York, NY 10021, USA.
Irena Pastar
Sasa Vukelic
My G Mahoney
Donna Brennan
Agata Krzyzanowska
Michael Golinko
Harold Brem
Marjana Tomic-Canic
Hospital for Special Surgery · USColumbia University · USThomas Jefferson University · US

Funding

Epidermal Genes and Their Regulators in Wound HealingR01NR008029 · NINR · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI TOMIC-CANIC, MARJANA · 2003 to 2007
$1.7M
Diabetic Foot and Pressure Ulcer DatabankR01LM008443 · NLM · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI BREM, HAROLD · 2005 to 2009
$1.7M
Local Angiogenic Therapy for Diabetic UlcersK08DK059424 · NIDDK · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI BREM, HAROLD · 2002 to 2006
$644k
NIDDK NIH HHS DK59424NIDDK NIH HHS K08 DK059424NINR NIH HHS NR08029NINR NIH HHS R01 NR008029NLM NIH HHS LM008443NLM NIH HHS R01 LM008443
6 · The paper itself

Abstract

Epidermal morphology of chronic wounds differs from that of normal epidermis. Biopsies of non-healing edges obtained from patients with venous ulcers show thick and hyperproliferative epidermis with mitosis present in suprabasal layers. This epidermis is also hyper-keratotic and parakeratotic. This suggests incomplete activation and differentiation of keratinocytes. To identify molecular changes that lead to pathogenic alterations in keratinocyte activation and differentiation pathways we isolated mRNA from non-healing edges deriving from venous ulcers patients and determined transcriptional profiles using Affymetrix chips. Obtained transcriptional profiles were compared to those from healthy, unwounded skin. As previously indicated by histology, we found deregulation of differentiation and activation markers. We also found differential regulation of signalling molecules that regulate these two processes. Early differentiation markers, keratins K1/K10 and a subset of small proline-rich proteins, along with the late differentiation marker filaggrin were suppressed, whereas late differentiation markers involucrin, transgultaminase 1 and another subset of small proline-rich proteins were induced in ulcers when compared to healthy skin. Surprisingly, desomosomal and tight junction components were also deregulated. Keratinocyte activation markers keratins K6/K16/K17 were induced. We conclude that keratinocytes at the non-healing edges of venous ulcers do not execute either activation or differentiation pathway, resulting in thick callus-like formation at the edge of a venous ulcers.

Indexed as

Cell DifferentiationBiomarkersCell Adhesion MoleculesCell ProliferationDesmosomesFilaggrin ProteinsGene Expression ProfilingGene Expression RegulationHumansKeratinocytesKeratinsOligonucleotide Array Sequence AnalysisReproducibility of ResultsReverse Transcriptase Polymerase Chain ReactionVaricose UlcerBiomarkersCell Adhesion MoleculesFilaggrin ProteinsFLG protein, humanKeratins

Identifiers

PMID18373736
PMCPMC3828883
OpenAlexW1996740089

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.