Evidence map›Paper›PMID 21037114›Full record

ArticleAmerican journal of respiratory cell and molecular biology2011

Autocrine fibroblast growth factor-2 signaling contributes to altered endothelial phenotype in pulmonary hypertension.

Ly Tu, Laurence Dewachter, Benoit Gore, Elie Fadel, Philippe Dartevelle, Gérald Simonneau, Marc Humbert, Saadia Eddahibi, Christophe Guignabert

Abstract readComparative Study
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
6.5field-weighted citation impact, top 3% 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

66 citing papers in PubMed, 148 citations in OpenAlex.

  1. Trial
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  6. Signaling pathways and targeted therapy for pulmonary hypertension.Signal transduction and targeted therapy · 2025
    Review
  7. Bone morphogenetic protein-9 controls pulmonary vascular growth and remodeling.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Review
  9. Article
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  19. AMPK and the Challenge of Treating Hypoxic Pulmonary Hypertension.International journal of molecular sciences · 2022
    Review
  20. Review

6 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

9 authors at 3 institutions in 2 countries.

Ly TuINSERM U, Le Plessis-Robinson, France.
Laurence Dewachter
Benoit Gore
Elie Fadel
Philippe Dartevelle
Gérald Simonneau
Marc Humbert
Saadia Eddahibi
Christophe Guignabert
Université Paris-Sud · FRInserm · FRUniversité Libre de Bruxelles · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pulmonary vascular remodeling is key to the pathogenesis of idiopathic pulmonary arterial hypertension (IPAH). We recently reported that fibroblast growth factor (FGF)2 is markedly overproduced by pulmonary endothelial cells (P-ECs) in IPAH and contributes significantly to smooth muscle hyperplasia and disease progression. Excessive FGF2 expression in malignancy exerts pathologic effects on tumor cells by paracrine and autocrine mechanisms.We hypothesized that FGF2 overproduction contributes in an autocrine manner to the abnormal phenotype of P-ECs, characteristic of IPAH. In distal pulmonary arteries (PAs) of patients with IPAH, we found increased numbers of proliferating ECs and decreased numbers of apoptotic ECs, accompanied with stronger immunoreactivity for the antiapoptotic molecules, B-cell lymphoma (BCL)2, and BCL extra long (BCL-xL) compared with PAs from control patients. These in situ observations were replicated in vitro, with cultured P-ECs from patients IPAH exhibiting increased proliferation and diminished sensitivity to apoptotic induction with marked increases in the antiapoptotic factors BCL2 and BCL-xL and levels of phosphorylated extracellular signal-regulated (ERK)1/2 compared with control P-ECs. IPAH P-ECs also exhibited increased FGF2 expression and an accentuated proliferative and survival response to conditioned P-EC media or exogenous FGF2 treatment. Decreasing FGF2 signaling by RNA interference normalized sensitivity to apoptosis and proliferative potential in the IPAH P-ECs. Our findings suggest that excessive autocrine release of endothelial-derived FGF2 in IPAH contributes to the acquisition and maintenance of an abnormal EC phenotype, enhancing proliferation through constitutive activation of ERK1/2 and decreasing apoptosis by increasing BCL2 and BCL-xL.

Indexed as

ApoptosisAutocrine CommunicationAdolescentAdultbcl-X ProteinBlotting, WesternCase-Control StudiesCell ProliferationCells, CulturedEndothelium, VascularFamilial Primary Pulmonary HypertensionFemaleFibroblast Growth Factor 2HumansHypertension, PulmonaryMaleBCL2L1 protein, humanbcl-X ProteinFibroblast Growth Factor 2Proto-Oncogene Proteins c-bcl-2RNA, MessengerRNA, Small Interfering

Identifiers

PMID21037114
PMCPMC4834126
OpenAlexW2084584671

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.