Evidence map›Paper›PMID 20870756›Full record

ArticleAmerican journal of respiratory and critical care medicine2011

Conditional depletion of airway progenitor cells induces peribronchiolar fibrosis.

Anne-Karina T Perl, Dieter Riethmacher, Jeffrey A Whitsett

Abstract read
In one paragraph

Article in American journal of respiratory and critical care medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
5.8field-weighted citation impact, top 4% 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

36 citing papers in PubMed, 76 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. An update in club cell biology and its potential relevance to chronic obstructive pulmonary disease.American journal of physiology. Lung cellular and molecular physiology · 2023
    Review
  5. Diacetyl inhalation impairs airway epithelial repair in mice infected with influenza A virus.American journal of physiology. Lung cellular and molecular physiology · 2022
    Article
  6. Antioxidants (Basel, Switzerland) · 2022
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Efficiency and Specificity of Gene Deletion in Lung Epithelial Doxycycline-Inducible Cre Mice.American journal of respiratory cell and molecular biology · 2017
    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

3 authors at 2 institutions in 2 countries.

Anne-Karina T PerlDivision of Pulmonary Biology, Perinatal Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA. Anne.Perl@cchmc.org
Dieter Riethmacher
Jeffrey A Whitsett
Cincinnati Children's Hospital Medical Center · USUniversity of Southampton · GB

Funding

Transcriptional Programming of Asthma Related Pathology in Respiratory EpitheliaR01HL095580 · NHLBI · CINCINNATI CHILDRENS HOSP MED CTR · PI WHITSETT, JEFFREY A · 2009 to 2017
$4.7M
Transcriptional Control of Respiratory Epithelial Progenitor CellsR01HL090156 · NHLBI · CINCINNATI CHILDRENS HOSP MED CTR · PI WHITSETT, JEFFREY A · 2007 to 2010
$2.1M
FGF and PDGF regulate myofibroblast differentiation in alveolar regenerationR01HL104003 · NHLBI · CINCINNATI CHILDRENS HOSP MED CTR · PI PERL, ANNE-KARINA THERESIA · 2010 to 2013
$1.5M
NHLBI NIH HHS HL 090156NHLBI NIH HHS R01 HL095580NHLBI NIH HHS R01 HL104003
6 · The paper itself

Abstract

rationaleThe respiratory epithelium has a remarkable capacity to respond to acute injury. In contrast, repeated epithelial injury is often associated with abnormal repair, inflammation, and fibrosis. There is increasing evidence that nonciliated epithelial cells play important roles in the repair of the bronchiolar epithelium after acute injury. Cellular processes underlying the repair and remodeling of the lung after chronic epithelial injury are poorly understood.

objectivesTo identify cell processes mediating epithelial regeneration and remodeling after acute and chronic Clara cell depletion.

methodsA transgenic mouse model was generated to conditionally express diphtheria toxin A to ablate Clara cells in the adult lung. Epithelial regeneration and peribronchiolar fibrosis were assessed after acute and chronic Clara cell depletion. MEASUREMENTS AND MAIN

resultsAcute Clara cell ablation caused squamous metaplasia of ciliated cells and induced proliferation of residual progenitor cells. Ciliated cells in the bronchioles and pro-surfactant protein C-expressing cells in the bronchiolar alveolar duct junctions did not proliferate. Epithelial cell proliferation occurred at multiple sites along the airways and was not selectively associated with regions around neuroepithelial bodies. Chronic Clara cell depletion resulted in ineffective repair and caused peribronchiolar fibrosis.

conclusionsColocalization of proliferation and cell type-specific markers demonstrate that Clara cells are critical airway progenitor cells. Continuous depletion of Clara cells resulted in persistent squamous metaplasia, lack of normal reepithelialization, and peribronchiolar fibrosis. Induction of proliferation in subepithelial fibroblasts supports the concept that chronic epithelial depletion caused peribronchiolar fibrosis.

Indexed as

AnimalsBronchiCells, CulturedDiphtheria ToxinDisease Models, AnimalFibrosisLungMiceMice, TransgenicRespiratory MucosaStem CellsDiphtheria Toxin

Identifiers

PMID20870756
PMCPMC3056226
OpenAlexW1990573387

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.