Evidence map›Paper›PMID 21049284›Full record

Trial reportAngiogenesis2011

Treprostinil increases the number and angiogenic potential of endothelial progenitor cells in children with pulmonary hypertension.

David M Smadja, Laetitia Mauge, Pascale Gaussem, Clément d'Audigier, Dominique Israel-Biet, David S Celermajer, Damien Bonnet, Marilyne Lévy

Open access · hybridAbstract readClinical Trial
In one paragraph

Trial report in Angiogenesis, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
4.6field-weighted citation impact, top 5% 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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it, 59 citations in OpenAlex.

  1. Parenteral treprostinil in paediatric pulmonary arterial hypertension: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2026
    Pooled it
  2. Guideline
  3. Article
  4. Review
  5. Review
  6. Article
  7. Pathological Roles for Endothelial Colony-Forming Cells in Neonatal and Adult Lung Disease.American journal of respiratory cell and molecular biology · 2023
    Review
  8. Article
  9. Gastrointestinal Kohlmeier-Degos disease: a narrative review.Orphanet journal of rare diseases · 2022
    Review
  10. Article
  11. Article
  12. Microvascular thrombosis: experimental and clinical implications.Translational research : the journal of laboratory and clinical medicine · 2020
    Review
  13. Article
  14. Observational
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
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

8 authors at 7 institutions in 2 countries.

David M SmadjaUniversité Paris Descartes, Paris, France. david.smadja@egp.aphp.fr
Laetitia Mauge
Pascale Gaussem
Clément d'Audigier
Dominique Israel-Biet
David S Celermajer
Damien Bonnet
Marilyne Lévy
Université Paris Cité · FRAssistance Publique – Hôpitaux de Paris · FRDélégation Paris 5 · FRHôpital Européen · FRHôpital Necker-Enfants Malades · FRHôpital Sainte-Périne · FRUniversity of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPulmonary vasodilators in general and prostacyclin therapy in particular, have markedly improved the outcome of patients with pulmonary arterial hypertension (PAH). As endothelial dysfunction is a key feature of PAH, and as endothelial progenitor cells (EPC) may contribute to vascular repair in PAH, we suspected that prostacyclin therapy might enhance EPC numbers and functions. In the present study, objectives were to determine whether EPC may contribute to vasodilator treatment efficacy in PAH.

methodsWe quantified CD34+ cells, CFU-Hill and ECFC (endothelial colony forming cells) in peripheral blood from children with idiopathic PAH (n = 27) or PAH secondary to congenital heart disease (n = 52). CD34+ were enumerated by flow cytometry, CFU-Hill and ECFC by a culture assay. ECFC grown ex vivo were tested for their angiogenic capacities before and after prostacyclin analog therapy (subcutaneous treprostinil).

resultsECFC counts were significantly enhanced in the 8 children treated with treprostinil, while no change was observed in children receiving oral therapy with endothelin antagonists and/or PDE5 inhibitors. CD34+ cell and CFU-Hill counts were unaffected. ECFC from patients treated with treprostinil had a hyperproliferative phenotype and showed enhanced angiogenic potential in a nude mouse preclinical model of limb ischemia.

conclusionsECFC may partly mediate the clinical benefits of prostanoids in pulmonary arterial hypertension.

Indexed as

AnimalsAntihypertensive AgentsCell CountCell SeparationChildColony-Forming Units AssayEndothelial CellsEpoprostenolFamilial Primary Pulmonary HypertensionHematopoietic Stem CellsHumansHypertension, PulmonaryMiceNeovascularization, PhysiologicStem CellsAntihypertensive AgentsEpoprostenoltreprostinil

Identifiers

PMID21049284
PMCPMC3040815
OpenAlexW2126496560

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.