Evidence map›Paper›PMID 7518191›Full record

ArticleThe American journal of pathology1994

Myofibroblasts and their role in lung collagen gene expression during pulmonary fibrosis. A combined immunohistochemical and in situ hybridization study.

K Zhang, M D Rekhter, D Gordon, S H Phan

Open access · greenAbstract read
In one paragraph

Article in The American journal of pathology, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 192 papers.

0numbers the graph read from it
0cells of the map it votes in
192citing papers in PubMed
10.4field-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

192 citing papers in PubMed, 480 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Targeting Fibrosis: From Molecular Mechanisms to Advanced Therapies.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Understanding myofibroblast origin in the fibrotic lung.Chinese medical journal pulmonary and critical care medicine · 2024
    Review
  16. Review
  17. Review
  18. Review
  19. Article
  20. Article

132 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

4 authors at 1 institution in 1 country.

K ZhangDepartment of Pathology, University of Michigan, Ann Arbor 48109-060.
M D Rekhter
D Gordon
S H Phan
University of Michigan · US

Funding

MONONUCLEAR LEUKOCYTE ADHESION AND RECRUITMENT IN CHRONIC INFLAMMATORY DISEASEP01HL031963 · NHLBI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI LUKACS, NICHOLAS W · 1985 to 2009
$14.1M
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
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 HL31963NHLBI NIH HHS HL52285
6 · The paper itself

Abstract

Appearance of contractile filament-laden stromal cells or myofibroblasts is a characteristic of lung fibrotic lesions. The role of these cells in fibrosis and their cytoskeletal phenotype are not fully delineated. This study was undertaken to further investigate these issues using a model of lung fibrosis. Rats were treated endotracheally with bleomycin on day 0, and their lungs examined at various time points by in situ hybridization for alpha 1(I) procollagen mRNA expression and by immunohistochemistry for desmin and alpha-smooth muscle actin expression. The results show an increase in the number of cells resembling fibroblasts and strongly positive for alpha-smooth muscle actin, desmin and procollagen mRNA expression in lungs of animals treated with bleomycin, with the increase being maximal between days 7 and 14 after bleomycin treatment. Two types of newly positive cells could be discerned. The first expressing alpha-smooth muscle actin, desmin, and procollagen mRNA was localized in active fibrotic lesions. The second expressing only alpha-smooth muscle actin and procollagen mRNA was localized in fibrotic submesothelial areas. Almost all of the newly reactive alpha-smooth muscle actin-positive cells strongly express procollagen mRNA, and they constituted most of the cells actively expressing procollagen. These findings suggest that the newly appearing myofibroblast characterized by alpha-smooth muscle actin and/or desmin expression may be responsible for most if not all of the increased lung collagen gene expression in pulmonary fibrosis.

Indexed as

ActinsAnimalsBase SequenceBleomycinDesminDisease Models, AnimalFibroblastsGene Expression RegulationImmunohistochemistryIn Situ HybridizationLungMaleMolecular Sequence DataProcollagenPulmonary FibrosisRatsActinsBleomycinDesminProcollagenRNA, Messenger

Identifiers

PMID7518191
PMCPMC1887314
OpenAlexW1594157448

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.