Evidence map›Paper›PMID 19197140›Full record

ArticleThe Journal of clinical investigation2009

Endothelial-derived FGF2 contributes to the progression of pulmonary hypertension in humans and rodents.

Mohamed Izikki, Christophe Guignabert, Elie Fadel, Marc Humbert, Ly Tu, Patricia Zadigue, Philippe Dartevelle, Gerald Simonneau, Serge Adnot, Bernard Maitre and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 100 papers.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed
14.1field-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

100 citing papers in PubMed, 209 citations in OpenAlex.

  1. Trial
  2. FGF family in health and disease.Molecular biomedicine · 2026
    Review
  3. Article
  4. Review
  5. Signaling pathways and targeted therapy for pulmonary hypertension.Signal transduction and targeted therapy · 2025
    Review
  6. Review
  7. Review
  8. FGF2 is secreted in extracellular vesicles from lung cells.American journal of physiology. Lung cellular and molecular physiology · 2024
    Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. An emerging class of new therapeutics targeting TGF, Activin, and BMP ligands in pulmonary arterial hypertension.Developmental dynamics : an official publication of the American Association of Anatomists · 2023
    Review
  14. Review
  15. Lymphoedema conditions disrupt endothelial barrier functionJournal of the Royal Society, Interface · 2022
    Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

40 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

12 authors at 2 institutions in 1 country.

Mohamed IzikkiINSERM U841, Faculté de Médecine, 8 avenue du Général Sarrail, 94010 Créteil, France.
Christophe Guignabert
Elie Fadel
Marc Humbert
Ly Tu
Patricia Zadigue
Philippe Dartevelle
Gerald Simonneau
Serge Adnot
Bernard Maitre
Bernadette Raffestin
Saadia Eddahibi
Institut Mondor de Recherche Biomédicale · FRInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pulmonary hypertension (PH) is a progressive, lethal lung disease characterized by pulmonary artery SMC (PA-SMC) hyperplasia leading to right-sided heart failure. Molecular events originating in pulmonary ECs (P-ECs) may contribute to the PA-SMC hyperplasia in PH. Thus, we exposed cultured human PA-SMC to medium conditioned by P-EC from patients with idiopathic PH (IPH) or controls and found that IPH P-EC-conditioned medium increased PA-SMC proliferation more than control P-EC medium. Levels of FGF2 were increased in the medium of IPH P-ECs over controls, while there was no detectable difference in TGF-beta1, PDGF-BB, or EGF levels. No difference in FGF2-induced proliferation or FGF receptor type 1 (FGFR1) mRNA levels was detected between IPH and control PA-SMCs. Knockdown of FGF2 in P-EC using siRNA reduced the PA-SMC growth-stimulating effects of IPH P-EC medium by 60% and control P-EC medium by 10%. In situ hybridization showed FGF2 overproduction predominantly in the remodeled vascular endothelium of lungs from patients with IPH. Repeated intravenous FGF2-siRNA administration abolished lung FGF2 production, both preventing and nearly reversing a rat model of PH. Similarly, pharmacological FGFR1 inhibition with SU5402 reversed established PH in the same model. Thus, endothelial FGF2 is overproduced in IPH and contributes to SMC hyperplasia in IPH, identifying FGF2 as a promising target for new treatments against PH.

Indexed as

AnimalsCell DivisionCells, CulturedDisease Models, AnimalDisease ProgressionEndothelium, VascularFibroblast Growth Factor 1Fibroblast Growth Factor 2Gene Expression RegulationHumansHypertension, PulmonaryIn Situ HybridizationLungMuscle, Smooth, VascularPulmonary ArteryRatsFibroblast Growth Factor 1Fibroblast Growth Factor 2Receptor, Fibroblast Growth Factor, Type 1RNA, MessengerRNA, Small Interfering

Identifiers

PMID19197140
PMCPMC2648677
OpenAlexW2058923462

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.