Evidence map›Paper›PMID 19930705›Full record

ArticleRespiratory research2009

Characterisation of the proximal airway squamous metaplasia induced by chronic tobacco smoke exposure in spontaneously hypertensive rats.

Sarah J Bolton, Kate Pinnion, Victor Oreffo, Martyn Foster, Kent E Pinkerton

Open access · goldAbstract read
In one paragraph

Article in Respiratory research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

20 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Article
  3. Animal models and mechanisms of tobacco smoke-induced chronic obstructive pulmonary disease (COPD).Journal of toxicology and environmental health. Part B, Critical reviews · 2023
    Review
  4. Lung Regeneration: Cells, Models, and Mechanisms.Cold Spring Harbor perspectives in biology · 2022
    Review
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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 3 institutions in 3 countries.

Sarah J BoltonSafety Assessment UK, AstraZeneca R&D Charnwood, Bakewell Road, Loughborough, Leicestershire, LE11 5RH, UK. sarahj.bolton@astrazeneca.com
Kate Pinnion
Victor Oreffo
Martyn Foster
Kent E Pinkerton
AstraZeneca (United Kingdom) · GBAstraZeneca (Singapore) · SGUniversity of California, Davis · US

Funding

Environmental Influences on Perinatal Lung DevelopmentR01ES011634 · NIEHS · UNIVERSITY OF CALIFORNIA DAVIS · PI PINKERTON, KENT ED · 2002 to 2006
$1.5M
NIEHS NIH HHS R01 ES011634ORD VA RD83241401PHS HHS U07/CCU906162
6 · The paper itself

Abstract

backgroundContinuous exposure to tobacco smoke (TS) is a key cause of chronic obstructive pulmonary disease (COPD), a complex multifactorial disease that is difficult to model in rodents. The spontaneously hypertensive (SH) rat exhibits several COPD-associated co-morbidities such as hypertension and increased coagulation. We have investigated whether SH rats are a more appropriate animal paradigm of COPD.

methodsSH rats were exposed to TS for 6 hours/day, 3 days/week for 14 weeks, and the lung tissues examined by immunohistochemistry.

resultsTS induced a CK13-positive squamous metaplasia in proximal airways, which also stained for Ki67 and p63. We hypothesise that this lesion arises by basal cell proliferation, which differentiates to a squamous cell phenotype. Differences in staining profiles for the functional markers CC10 and surfactant D, but not phospho-p38, indicated loss of ability to function appropriately as secretory cells. Within the parenchyma, there were also differences in the staining profiles for CC10 and surfactant D, indicating a possible attempt to compensate for losses in proximal airways. In human COPD sections, areas of CK13-positive squamous metaplasia showed sporadic p63 staining, suggesting that unlike the rat, this is not a basal cell-driven lesion.

conclusionThis study demonstrates that although proximal airway metaplasia in rat and human are both CK13+ and therefore squamous, they potentially arise by different mechanisms.

Indexed as

AnimalsCell DifferentiationCell ProliferationDisease Models, AnimalEpithelial CellsHumansHypertensionImmunohistochemistryKeratin-13Ki-67 AntigenLungMetaplasiap38 Mitogen-Activated Protein KinasesPhenotypePhosphorylationPulmonary Disease, Chronic ObstructiveKeratin-13Ki-67 AntigenKRT13 protein, humanKrt13 protein, ratp38 Mitogen-Activated Protein KinasesPulmonary Surfactant-Associated Protein DSCGB1A1 protein, humanScgb1a1 protein, ratUteroglobin

Identifiers

PMID19930705
PMCPMC2789729
OpenAlexW2057083850

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.