Evidence map›Paper›PMID 21492463›Full record

ArticleArthritis research & therapy2011

Platelet-derived growth factor receptor-β and epidermal growth factor receptor in pulmonary vasculature of systemic sclerosis-associated pulmonary arterial hypertension versus idiopathic pulmonary arterial hypertension and pulmonary veno-occlusive disease: a case-control study.

Maria J Overbeek, Anco Boonstra, Alexandre E Voskuyl, Madelon C Vonk, Anton Vonk-Noordegraaf, Maria P A van Berkel, Wolter J Mooi, Ben A C Dijkmans, Laurens S Hondema, Egbert F Smit and 1 more

Open access · goldAbstract read
In one paragraph

Article in Arthritis research & therapy, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Genome-wide meta-analysis reveals shared newAnnals of the rheumatic diseases · 2019
    Pooled it
  2. Pulmonary arterial hypertension with signs of venous/capillary involvement in connective tissue diseases: paradigms and paradoxes.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
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  13. Pulmonary capillary haemangiomatosis: a distinct entity?European respiratory review : an official journal of the European Respiratory Society · 2020
    Article
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  19. Animal models of systemic sclerosis: their utility and limitations.Open access rheumatology : research and reviews · 2014
    Review
  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

11 authors at 2 institutions in 1 country.

Maria J OverbeekDepartment of Pulmonary Diseases, VU University Medical Center, De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands. mj.overbeek@vumc.nl
Anco Boonstra
Alexandre E Voskuyl
Madelon C Vonk
Anton Vonk-Noordegraaf
Maria P A van Berkel
Wolter J Mooi
Ben A C Dijkmans
Laurens S Hondema
Egbert F Smit
Katrien Grünberg
Amsterdam UMC Location VUmc · NLRadboud University Nijmegen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionSystemic sclerosis (SSc) complicated by pulmonary arterial hypertension (PAH) carries a poor prognosis, despite pulmonary vascular dilating therapy. Platelet-derived growth factor receptor-β (PDGFR-β) and epidermal growth factor receptor (EGFR) are potential therapeutic targets for PAH because of their proliferative effects on vessel remodelling. To explore their role in SScPAH, we compared PDGFR- and EGFR-mmunoreactivity in lung tissue specimens from SScPAH. We compared staining patterns with idiopathic PAH (IPAH) and pulmonary veno-occlusive disease (PVOD), as SScPAH vasculopathy differs from IPAH and sometimes displays features of PVOD. Immunoreactivity patterns of phosphorylated PDGFR-β (pPDGFR-β) and the ligand PDGF-B were evaluated to provide more insight into the patterns of PDGFR-b activation.

methodsLung tissue specimens from five SScPAH, nine IPAH, six PVOD patients and five controls were examined. Immunoreactivity was scored for presence, distribution and intensity.

resultsAll SScPAH and three of nine IPAH cases (P = 0.03) showed PDGFR-β-immunoreactivity in small vessels (arterioles/venules); of five SScPAH vs. two of nine IPAH cases (P = 0.02) showed venous immunoreactivity. In small vessels, intensity was stronger in SScPAH vs. IPAH. No differences were found between SScPAH and PVOD. One of five normal controls demonstrated focally mild immunoreactivity. There were no differences in PDGF-ligand and pPDGFR-b-immunoreactivity between patient groups; however, pPDGFR-b-immunoreactivity tended to be more prevalent in SScPAH small vasculature compared to IPAH. Vascular EGFR-immunoreactivity was limited to arterial and arteriolar walls, without differences between groups. No immunoreactivity was observed in vasculature of normals.

conclusionsPDGFR-β-immunoreactivity in SScPAH is more common and intense in small- and post-capillary vessels than in IPAH and does not differ from PVOD, fitting in with histomorphological distribution of vasculopathy. PDGFR-β immunoreactivity pattern is not paralleled by pPDGFR-β or PDGF-B patterns. PDGFR-β- and EGFR-immunoreactivity of pulmonary vessels distinguishes PAH patients from controls.

Indexed as

AdultAgedBiomarkersCase-Control StudiesErbB ReceptorsFamilial Primary Pulmonary HypertensionFemaleHumansHypertension, PulmonaryImmunohistochemistryLungMaleMiddle AgedPulmonary ArteryPulmonary VeinsPulmonary Veno-Occlusive DiseaseBiomarkersEGFR protein, humanErbB ReceptorsReceptor, Platelet-Derived Growth Factor beta

Identifiers

PMID21492463
PMCPMC3132056
OpenAlexW2134844588

What OpenQuestion holds

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LicenceCC BY
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.