Evidence map›Paper›PMID 21642621›Full record

ArticleInvestigative ophthalmology & visual science2011

Expression of PDGFRα is a determinant of the PVR potential of ARPE19 cells.

Hetian Lei, Marc-André Rhéaume, Gisela Velez, Shizuo Mukai, Andrius Kazlauskas

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

31 citing papers in PubMed, 59 citations in OpenAlex.

  1. Article
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  6. Proliferative Vitreoretinopathy: A Reappraisal.Journal of clinical medicine · 2023
    Review
  7. Article
  8. Article
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  10. Review
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  12. Article
  13. Proliferative Vitreoretinopathy: A Review.International ophthalmology clinics · 2019
    Review
  14. Article
  15. Article
  16. Review
  17. Article
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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

5 authors at 1 institution in 1 country.

Hetian LeiThe Schepens Eye Research Institute, Harvard Medical School, Boston, Massachusetts 02114, USA.
Marc-André Rhéaume
Gisela Velez
Shizuo Mukai
Andrius Kazlauskas
Singapore Eye Research Institute · SG

Funding

PDGF and PVRR01EY012509 · NEI · SCHEPENS EYE RESEARCH INSTITUTE · PI LEI, HETIAN · 2000 to 2017
$8.5M
NEI NIH HHS EY012509NEI NIH HHS R01 EY012509
6 · The paper itself

Abstract

purposePrevious studies indicate that the expression of platelet-derived growth factor (PDGF) receptor α (PDGFRα) dramatically increases the ability of fibroblasts to induce experimental proliferative vitreoretinopathy (PVR). The purpose of this study was to determine whether PDGFRα contributed to the PVR potential of retinal pigment epithelial (RPE) cells, one of the most abundant cell types in PVR membranes.

methodsPDGFRα expression in human ARPE19 cells was increased or decreased by stably expressing the PDGFRα cDNA or short hairpin (sh) RNA directed at PDGFRα, respectively. The level of PDGFRα expression in the resulting panel of cell lines was either barely detectable (KD), standard (similar to the level of primary RPE cells), or overexpressed approximately 80-fold. Western blot analysis was used to assess the level of p53 and the activation state of PDGFRα and Akt. The following cellular responses were monitored: proliferation, apoptosis, and contraction. The PVR potential of cells was tested in a rabbit model of PVR in which cells were coinjected with platelet-rich plasma into the vitreous.

resultsComparison of KD and overexpressing cells indicated that high-level expression of PDGFRα dramatically augmented signaling events, cellular responses, and the PVR potential of ARPE19 cells. However, all these outcomes were also significantly increased, albeit not as robustly, by PDGFRα expression to the level typically present in RPE cells.

conclusionsEven though RPE cells express substantially less PDGFRα than fibroblasts, it significantly boosts PVR-related signaling events, cellular responses, and the PVR potential of ARPE19 cells. These studies suggest that inhibiting activation, signaling, or both by PDGFRα has the potential to prevent the development of PVR.

Indexed as

AnimalsApoptosisCell DivisionCells, CulturedDisease Models, AnimalGene ExpressionHumansPlatelet-Rich PlasmaRabbitsReceptor, Platelet-Derived Growth Factor alphaRetinal Pigment EpitheliumSignal TransductionVitreoretinopathy, ProliferativeVitreous BodyReceptor, Platelet-Derived Growth Factor alpha

Identifiers

PMID21642621
PMCPMC3176061
OpenAlexW2094390105

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.