Evidence map›Paper›PMID 34436724›Full record

ArticleMolecular biology reports2021

Genes coding for transcription factors involved in stem cell maintenance are repressed by TGF-β and downstream of Slug/Snail2 in COPD bronchial epithelial progenitors.

Pierre de la Grange, Ariane Jolly, Charlotte Courageux, Chamseddine Ben Brahim, Pascale Leroy

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Article in Molecular biology reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.7field-weighted citation impact, top 27% 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

4 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Basic Science Perspective on Engineering and Modeling the Large Airways.Advances in experimental medicine and biology · 2023
    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

5 authors at 1 institution in 1 country.

Pierre de la GrangeGenoSplice, Paris, France.
Ariane JollyGenoSplice, Paris, France.
Charlotte CourageuxInserm UMR1152, Physiopathology and Epidemiology of Respiratory Diseases, Paris, France.
Chamseddine Ben BrahimInserm UMR1152, Physiopathology and Epidemiology of Respiratory Diseases, Paris, France.
Pascale LeroyInserm UMR1152, Physiopathology and Epidemiology of Respiratory Diseases, Paris, France. pascale.leroy@inserm.fr.ORCID http://orcid.org/0000-0001-7635-1358
Inserm · FR

Funding

Association Science et Technologie (Groupe Servier) 140065/ZA
6 · The paper itself

Abstract

backgroundBasal stem/progenitor cells of airway epithelium from chronic obstructive pulmonary disease (COPD) patients have a decrease in differentiation and self-renewal potential. Our study aimed at identifying deregulations in the genetic program of these cells that could account for their exhaustion, focusing on genes downstream of the epithelial-mesenchymal transition-inducing transcription factor Slug/Snail2 and responding to transforming growth factor (TGF)-β. TGF-β is at higher levels in COPD patient lungs, plays a role in stem/progenitor cell fate and regulates the expression of Slug/Snail2 that is highly expressed in airway basal stem/progenitors. METHODS AND

resultsWe reanalyzed a gene expression dataset that we generated from COPD and normal primary bronchial basal progenitor cells knocked down for Slug/Snail2 gene. Among the genes that we identified to be repressed downstream of Slug/Snail2 in COPD, we selected those responding to differentiation and TGF-β. The large majority of these genes are upregulated with differentiation but repressed by TGF-β. Pathway and ontology enrichment analysis revealed a set of genes coding for transcription factors involved in stem cell maintenance that are repressed downstream of Slug/Snail2 and by TGF-β in COPD but not normal basal progenitor cells. We also reveal a link between Slug/Snail2 expression and the repressive effect of TGF-β on these stem cell maintenance genes.

conclusionOur work brings a new insight and molecular perspective to the exhaustion of basal stem/progenitor cells observed in the airway epithelium of COPD patients, revealing that stem cell maintenance genes are repressed in these cells, with TGF-β and Slug/Snail2 being involved in this deregulation.

Indexed as

BronchiEpitheliumFemaleHumansMaleMiddle AgedPulmonary Disease, Chronic ObstructiveRNA, MessengerSnail Family Transcription FactorsStem CellsTranscription FactorsTransforming Growth Factor betaRNA, MessengerSnail Family Transcription FactorsTranscription FactorsTransforming Growth Factor betaAdult stem/progenitor cellsChronic obstructive pulmonary disease (COPD)Human primary bronchial basal stem/progenitor cellsSlug/Snail2 transcription factorSomatic stem cell maintenance genesTransforming growth factor (TGF)-β

Identifiers

PMID34436724
OpenAlexW3194146264

What OpenQuestion holds

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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.