Evidence map›Paper›PMID 19244201›Full record

ArticleAmerican journal of respiratory cell and molecular biology2009

Rapamycin prevents transforming growth factor-alpha-induced pulmonary fibrosis.

Thomas R Korfhagen, Timothy D Le Cras, Cynthia R Davidson, Stephanie M Schmidt, Machiko Ikegami, Jeffrey A Whitsett, William D Hardie

Open access · greenAbstract read
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
3.1field-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

63 citing papers in PubMed, 97 citations in OpenAlex.

  1. Trial
  2. Emerging Concepts in Fibroblast Biology and Progressive Pulmonary Fibrosis.Seminars in respiratory and critical care medicine · 2025
    Review
  3. Senotherapy for chronic lung disease.Pharmacological reviews · 2025
    Review
  4. Article
  5. Schisandrin B attenuates bleomycin-induced pulmonary fibrosis in mice through AKT-mTOR pathway.Sarcoidosis, vasculitis, and diffuse lung diseases : official journal of WASOG · 2024
    Article
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  8. Article
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  20. Article

3 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

7 authors at 2 institutions in 1 country.

Thomas R KorfhagenDepartment of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229, USA.
Timothy D Le Cras
Cynthia R Davidson
Stephanie M Schmidt
Machiko Ikegami
Jeffrey A Whitsett
William D Hardie
Cincinnati Children's Hospital Medical Center · USPulmonary Associates · US

Funding

SURFACTANT HOMEOSTASIS IN HEALTH AND DISEASEP01HL061646 · NHLBI · CINCINNATI CHILDRENS HOSP MED CTR · PI WEAVER, TIMOTHY EDWARD · 1999 to 2008
$14.6M
SURFACTANT PROTEIN-A AND LUNG DEFENSER01HL058795 · NHLBI · CINCINNATI CHILDRENS HOSP MED CTR · PI KORFHAGEN, THOMAS R · 1998 to 2008
$2.6M
Epidermal Growth Factor Receptor Activation in Pulmonary FibrosisR01HL086598 · NHLBI · CINCINNATI CHILDRENS HOSP MED CTR · PI HARDIE, WILLIAM DAVID · 2007 to 2011
$2.1M
Transcriptional Control of Respiratory Epithelial Progenitor CellsR01HL090156 · NHLBI · CINCINNATI CHILDRENS HOSP MED CTR · PI WHITSETT, JEFFREY A · 2007 to 2010
$2.1M
NHLBI NIH HHS HL058795NHLBI NIH HHS HL061646NHLBI NIH HHS HL086598NHLBI NIH HHS HL61646NHLBI NIH HHS HL90156
6 · The paper itself

Abstract

Transforming growth factor (TGF)-alpha is a ligand for the epidermal growth factor receptor (EGFR). EGFR activation is associated with fibroproliferative processes in human lung disease and animal models of pulmonary fibrosis. Overexpression of TGF-alpha in transgenic mice causes progressive and severe pulmonary fibrosis; however, the intracellular signaling pathways downstream of EGFR mediating this response are unknown. Using a doxycycline-regulatable transgenic mouse model of lung-specific TGF-alpha expression, we observed increased PCNA protein and phosphorylation of Akt and p70S6K in whole lung homogenates in association with induction of TGF-alpha. Induction in the lung of TGF-alpha caused progressive pulmonary fibrosis over a 7-week period. Daily administration of rapamycin prevented accumulation of total lung collagen, weight loss, and changes in pulmonary mechanics. Treatment of mice with rapamycin 4 weeks after the induction of TGF-alpha prevented additional weight loss, increases in total collagen, and changes in pulmonary mechanics. Rapamycin prevented further increases in established pulmonary fibrosis induced by EGFR activation. This study demonstrates that mammalian target of rapamycin (mTOR) is a major effector of EGFR-induced pulmonary fibrosis, providing support for further studies to determine the role of mTOR in the pathogenesis and treatment of pulmonary fibrosis.

Indexed as

AnimalsCarrier ProteinsCollagenDisease Models, AnimalDisease ProgressionDoxycyclineEnzyme InhibitorsErbB ReceptorsErlotinib HydrochlorideGene Expression RegulationHumansLungMiceMice, TransgenicPhosphatidylinositol 3-KinasesPhosphorylationCarrier ProteinsCollagenDoxycyclineEGFR protein, mouseEnzyme InhibitorsErbB ReceptorsErlotinib HydrochlorideMTOR protein, humanmTOR protein, mousePhosphatidylinositol 3-KinasesPhosphotransferases (Alcohol Group Acceptor)Proliferating Cell Nuclear AntigenProtein Kinase InhibitorsProto-Oncogene Proteins c-aktQuinazolinesRibosomal Protein S6 Kinases, 70-kDaSCGB1A1 protein, humanScgb1a1 protein, mouseSirolimusTOR Serine-Threonine KinasesTransforming Growth Factor alphaUteroglobin

Identifiers

PMID19244201
PMCPMC2778163
OpenAlexW2115127001

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.