Evidence map›Paper›PMID 23018301›Full record

ArticleClinics (Sao Paulo, Brazil)2012

Increased fibroblast telomerase expression precedes myofibroblast α-smooth muscle actin expression in idiopathic pulmonary fibrosis.

Daniel Reis Waisberg, Edwin Roger Parra, João Valente Barbas-Filho, Sandra Fernezlian, Vera Luiza Capelozzi

Open access · goldAbstract read
In one paragraph

Article in Clinics (Sao Paulo, Brazil), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

18 citing papers in PubMed, 27 citations in OpenAlex.

  1. Telomerase and telomere length in pulmonary fibrosis.American journal of respiratory cell and molecular biology · 2013
    Trial
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  17. Actin cytoskeleton redox proteome oxidation by cadmium.American journal of physiology. Lung cellular and molecular physiology · 2013
    Article
  18. Cellular senescence in normal and premature lung aging.Zeitschrift fur Gerontologie und Geriatrie · 2013
    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

5 authors at 2 institutions in 2 countries.

Daniel Reis WaisbergDepartment of Pathology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.
Edwin Roger Parra
João Valente Barbas-Filho
Sandra Fernezlian
Vera Luiza Capelozzi
Universidade de São Paulo · BRCenter for Translational Molecular Medicine · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study sought to identify the relationship between fibroblast telomerase expression, myofibroblasts, and telomerase-mediated regulatory signals in idiopathic pulmonary fibrosis.

methodsThirty-four surgical lung biopsies, which had been obtained from patients with idiopathic pulmonary fibrosis and histologically classified as usual interstitial pneumonia, were examined. Immunohistochemistry was used to evaluate fibroblast telomerase expression, myofibroblast α-smooth muscle actin expression and the tissue expression of inter leu kin-4, transforming growth factor-β, and basic fibroblast growth factor. The point-counting technique was used to quantify the expression of these markers in unaffected, collapsed, mural fibrosis, and honeycombing areas. The results were correlated to patient survival.

resultsFibroblast telomerase expression and basic fibroblast growth factor tissue expression were higher in collapsed areas, whereas myofibroblast expression and interleukine-4 tissue expression were higher in areas of mural fibrosis. Transforming growth factor-β expression was higher in collapsed, mural fibrosis and honeycombing areas in comparison to unaffected areas. Positive correlations were found between basic fibroblast growth factor tissue expression and fibroblast telomerase expression and between interleukin-4 tissue expression and myofibroblast α-smooth muscle actin expression. Negative correlations were observed between interleukin-4 expression and basic fibroblast growth factor tissue expression in areas of mural fibrosis. Myofibroblast α-smooth muscle actin expression and interleukin-4 tissue expression in areas of mural fibrosis were negatively associated with patient survival.

conclusionFibroblast telomerase expression is higher in areas of early remodeling in lung tissues demonstrating typical interstitial pneumonia, whereas myofibroblast α-smooth muscle actin expression predominates in areas of late remodeling. These events seem to be regulated by basic fibroblast growth factor and interleukin-4 tissue expression, respectively.

Indexed as

ActinsAgedBiomarkersBiopsyCell DifferentiationFemaleFibroblast Growth FactorsHumansIdiopathic Pulmonary FibrosisInterleukin-4LungMaleMiddle AgedMyofibroblastsProportional Hazards ModelsRetrospective StudiesACTA2 protein, humanActinsBiomarkersFibroblast Growth FactorsInterleukin-4TelomeraseTransforming Growth Factor beta

Identifiers

PMID23018301
PMCPMC3438244
OpenAlexW2033405920

What OpenQuestion holds

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LicenceCC BY-NC
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.