Evidence map›Paper›PMID 1862087›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1991

Transforming growth factor beta 1 is present at sites of extracellular matrix gene expression in human pulmonary fibrosis.

T J Broekelmann, A H Limper, T V Colby, J A McDonald

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1991. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 271 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
271citing papers in PubMed, 1 pooled it
11.3field-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

271 citing papers in PubMed, 1 synthesis or guideline pooled it, 798 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Murine models of pulmonary fibrosis: mechanisms, limitations and translational insights.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. The role of vascularity and the fibrovascular interface in interstitial lung diseases.European respiratory review : an official journal of the European Respiratory Society · 2025
    Review
  12. Review
  13. Review
  14. Article
  15. TGF-β signaling in health, disease, and therapeutics.Signal transduction and targeted therapy · 2024
    Review
  16. Review
  17. Anoctamin-1 is induced by TGF-β and contributes to lung myofibroblast differentiation.American journal of physiology. Lung cellular and molecular physiology · 2024
    Article
  18. Review
  19. Article
  20. The Pharmacological Efficacy of Baicalin in Inflammatory Diseases.International journal of molecular sciences · 2023
    Review

211 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.

T J BroekelmannDepartment of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110.
A H Limper
T V Colby
J A McDonald
Washington University in St. Louis · US

Funding

VASCULAR CELL DIVERSITY IN PULMONARY HYPERTENSIONP01HL029594 · NHLBI · WASHINGTON UNIVERSITY · PI HOLTZMAN, MICHAEL J · 1985 to 2012
$23.8M
PRINCIPLES IN PULMONARY RESEARCHT32HL007317 · NHLBI · WASHINGTON UNIVERSITY · PI Steven Brody, Michael J Holtzman · 1985 to 2026
$16.1M
EFFECTS OF FIXATION PRESSURE ON MORPHOLOGY OF AORTIC BIOPROSTHESISZ01HL003989 · NHLBI · HEART, LUNG, AND BLOOD INSTITUTE · PI FERRENS, V J · 1990 to 1990
–
NHLBI NIH HHS 5-T32-HL07317NHLBI NIH HHS HL-29594NHLBI NIH HHS HL-3989
6 · The paper itself

Abstract

Idiopathic pulmonary fibrosis is an inexorably fatal disorder characterized by connective tissue deposition within the terminal air spaces resulting in loss of lung function and eventual respiratory failure. Previously, we demonstrated that foci of activated fibroblasts expressing high levels of fibronectin, procollagen, and smooth muscle actin and thus resembling those found in healing wounds are responsible for the connective tissue deposition and scarring in idiopathic pulmonary fibrosis. Using in situ hybridization and immunohistochemistry, we now demonstrate the presence of transforming growth factor beta 1 (TGF-beta 1), a potent profibrotic cytokine, in the foci containing these activated fibroblasts. These results suggest that matrix-associated TGF-beta 1 may serve as a stimulus for the persistent expression of connective tissue genes. One potential source of the TGF-beta 1 is the alveolar macrophage, and we demonstrate the expression of abundant TGF-beta 1 mRNA in alveolar macrophages in lung tissue from patients with idiopathic pulmonary fibrosis.

Indexed as

FibronectinsGene ExpressionHumansHypertension, PulmonaryLungNucleic Acid HybridizationProcollagenPulmonary FibrosisReference ValuesRNA, MessengerRNA ProbesTransforming Growth Factor betaFibronectinsProcollagenRNA, MessengerRNA ProbesTransforming Growth Factor beta

Identifiers

PMID1862087
PMCPMC52144
OpenAlexW2000708019

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.