Evidence map›Paper›PMID 19767450›Full record

ArticleAmerican journal of respiratory cell and molecular biology2010

Endothelial-mesenchymal transition in bleomycin-induced pulmonary fibrosis.

Naozumi Hashimoto, Sem H Phan, Kazuyoshi Imaizumi, Masaki Matsuo, Harunori Nakashima, Tsutomu Kawabe, Kaoru Shimokata, Yoshinori Hasegawa

Open access · greenAbstract read
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 251 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
251citing papers in PubMed, 1 pooled it
11.5field-weighted citation impact, top 1% 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

251 citing papers in PubMed, 1 synthesis or guideline pooled it, 453 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. von Willebrand Factor: An Unhealthy Bond between Lung Endothelium and Pulmonary Fibrosis.American journal of respiratory cell and molecular biology · 2025
    Article
  15. Article
  16. Regulation of inflammatory lung injury and repair by transforming growth factors.American journal of physiology. Lung cellular and molecular physiology · 2025
    Review
  17. Review
  18. Article
  19. Review
  20. Review

191 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 4 institutions in 2 countries.

Naozumi HashimotoDepartment of Respiratory Medicine, Nagoya University Graduate School of Medicine, Showa-ku, Japan.
Sem H Phan
Kazuyoshi Imaizumi
Masaki Matsuo
Harunori Nakashima
Tsutomu Kawabe
Kaoru Shimokata
Yoshinori Hasegawa
Nagoya University · JPChubu University · JPNagoya City University · JPUniversity of Michigan · US

Funding

MYOFIBROBLASTS IN PULMONARY FIBROSISR01HL052285 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PHAN, SEM H · 1994 to 2017
$5.4M
Mechanisms of Pulmonary FibrosisR37HL028737 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PHAN, SEM H · 2001 to 2010
$3.0M
Novel telomerase expressing lung fibroblast phenotypeR01HL077297 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PHAN, SEM H · 2004 to 2012
$3.0M
MECHANISMS OF PULMONARY FIBROSISR01HL028737 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PHAN, SEM H · 1986 to 2000
$227k
NHLBI NIH HHS HL28737NHLBI NIH HHS HL52285NHLBI NIH HHS R01 HL077297
6 · The paper itself

Abstract

The pathological hallmark lesions in idiopathic pulmonary fibrosis are the fibroblastic foci, in which fibroblasts are thought to be involved in the tissue remodeling, matrix deposition, and cross-talk with alveolar epithelium. Recent evidence indicates that some fibroblasts in fibrosis may be derived from bone marrow progenitors as well as from epithelial cells through epithelial-mesenchymal transition. To evaluate whether endothelial cells could represent an additional source for fibroblasts, bleomycin-induced lung fibrosis was established in Tie2-Cre/CAG-CAT-LacZ double-transgenic mice, in which LacZ was stably expressed in pan-endothelial cells. Combined X-gal staining and immunocytochemical staining for type I collagen and alpha-smooth muscle actin revealed the presence of X-gal-positive cells in lung fibroblast cultures from bleomycin-treated mice. To explore the underlying mechanisms, by which loss of endothelial-specific markers and gain of mesenchymal phenotypes could be involved in microvascular endothelial cells, the effects of activated Ras and TGF-beta on the microvascular endothelial cell line MS1 were analyzed. Combined treatment with activated Ras and TGF-beta caused a significant loss of endothelial-specific markers, while inducing de novo mesenchymal phenotypes. The altered expression of these markers in MS1 cells with activated Ras persisted after withdrawal of TGF-beta in vitro and in vivo. These findings are the first to show that lung capillary endothelial cells could give rise to significant numbers of fibroblasts through an endothelial-mesenchymal transition in bleomycin-induced lung fibrosis model.

Indexed as

AnimalsAntibiotics, AntineoplasticBleomycinBone Marrow CellsEndotheliumEpitheliumFibroblastsFibrosisFlow CytometryLungMesodermMicePulmonary AlveoliPulmonary FibrosisStem CellsAntibiotics, AntineoplasticBleomycin

Identifiers

PMID19767450
PMCPMC2937229
OpenAlexW2114880343

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.