Evidence map›Paper›PMID 18988920›Full record

ArticleAmerican journal of respiratory cell and molecular biology2009

Hepatocyte growth factor inhibits epithelial to myofibroblast transition in lung cells via Smad7.

Manasi N Shukla, Jane L Rose, Rabindranath Ray, Kira L Lathrop, Anuradha Ray, Prabir Ray

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 69 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 9% 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

69 citing papers in PubMed, 2 syntheses or guidelines pooled it, 135 citations in OpenAlex.

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  20. The Role of Mesenchymal Stem Cells in Radiation-Induced Lung Fibrosis.International journal of molecular sciences · 2019
    Review

9 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

6 authors at 2 institutions in 1 country.

Manasi N ShuklaDepartment of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15213, USA.
Jane L Rose
Rabindranath Ray
Kira L Lathrop
Anuradha Ray
Prabir Ray
Pulmonary and Allergy Associates · USUniversity of Pittsburgh · US

Funding

Virus Production and Manipulation of Protein/Gene Expression ModuleP30EY008098 · NEI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Yuanyuan Chen · 1989 to 2026
$17.8M
Translational Training Program in Pulmonary Biology and MedicineT32HL007563 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Melanie Koenigshoff · 1985 to 2026
$12.3M
NITRIC OXIDE AND METALLOTIONEIMP01HL070807 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI RYTER, STEFAN W · 2003 to 2007
$8.1M
KGF and Protection from Hyperoxic Lung InjuryR01HL069810 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI RAY, PRABIR · 2001 to 2009
$2.7M
NEI NIH HHS EY08098NHLBI NIH HHS P50 HL 70807NHLBI NIH HHS R01 HL69810NHLBI NIH HHS TG HL007563PHS HHS P50 84932
6 · The paper itself

Abstract

Idiopathic pulmonary fibrosis is a lethal parenchymal lung disease characterized by denudation of the lung epithelium, fibroblast proliferation, and collagen deposition. Cellular changes underlying disease progression involve injury to alveolar epithelial cells, epithelial to mesenchymal transition, proliferation of alpha-smooth muscle actin (alpha-SMA)-expressing myofibroblasts and of fibroblasts resulting in enhanced deposition of extracellular matrix proteins. Hepatocyte growth factor (HGF) inhibits progression of bleomycin-induced pulmonary fibrosis in mice. The mechanism underlying the inhibitory effect of HGF was investigated in an in vitro model. We show that HGF markedly antagonizes basal and transforming growth factor (TGF)-beta-induced expression of myofibroblast markers such as alpha-SMA, collagen type 1, and fibronectin in rat alveolar epithelial cells. HGF also inhibited TGF-beta-induced alpha-SMA expression in primary murine alveolar epithelial cells. Since TGF-beta is known to regulate alpha-SMA expression, the effect of HGF on components of TGF-beta signaling was investigated. HGF induced expression of Smad7, an inhibitor of TGF-beta signaling, in a mitogen-activated protein kinase-dependent manner. HGF also induced the nuclear export of Smad7 and Smad ubiquitin regulatory factor 1 (Smurf1) to the cytoplasm. HGF-dependent decrease in alpha-SMA was abolished with specific siRNAs targeted to Smad7. Thus, induction of Smad7 by HGF serves to limit acquisition of the myofibroblast phenotype in alveolar epithelial cells.

Indexed as

ActinsAnimalsBleomycinEpitheliumFibroblastsHepatocyte Growth FactorLungMAP Kinase Signaling SystemMiceMuscle, SmoothPhenotypePulmonary FibrosisRatsSmad7 ProteinTransforming Growth Factor betaActinsBleomycinHepatocyte Growth FactorSmad7 ProteinSMAD7 protein, humanTransforming Growth Factor beta

Identifiers

PMID18988920
PMCPMC2689916
OpenAlexW1968911944

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.