Evidence map›Paper›PMID 18952918›Full record

ArticleInvestigative ophthalmology & visual science2009

Suppression of retinal neovascularization by erythropoietin siRNA in a mouse model of proliferative retinopathy.

Jing Chen, Kip M Connor, Christopher M Aderman, Keirnan L Willett, Oskar P Aspegren, Lois E H Smith

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 99 papers.

0numbers the graph read from it
0cells of the map it votes in
99citing papers in PubMed
19.2field-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

99 citing papers in PubMed, 192 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Review
  6. Pathophysiology of Retinopathy of Prematurity.Annual review of vision science · 2023
    Review
  7. Article
  8. Systemic Cytokines in Retinopathy of Prematurity.Journal of personalized medicine · 2023
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Review
  16. Article
  17. Article
  18. Animal models of diabetic retinopathy.Annals of translational medicine · 2021
    Review
  19. Review
  20. Review

39 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

6 authors at 1 institution in 1 country.

Jing ChenDepartment of Ophthalmology, Children's Hospital Boston, Harvard Medical School, Boston, Massachusetts 02115, USA.
Kip M Connor
Christopher M Aderman
Keirnan L Willett
Oskar P Aspegren
Lois E H Smith
Boston Children's Hospital · US

Funding

SYNAPTIC MECHANISMS IN HIPPOCAMPAL EPILEPTOGENESISP30HD018655 · NICHD · CHILDREN'S HOSPITAL BOSTON · PI WOOLF, CLIFFORD J · 1985 to 2015
$26.2M
Dietary control of angiogenesis in retinopathy modelsR01EY017017 · NEI · BOSTON CHILDREN'S HOSPITAL · PI Zhongjie Fu, Lois Smith · 2006 to 2026
$11.8M
Training Program in the Molecular Bases of Eye DiseasesT32EY007145 · NEI · SCHEPENS EYE RESEARCH INSTITUTE · PI Patricia Ann D'Amore, MEREDITH GREGORY-KSANDER · 1997 to 2026
$4.5M
VASCULAR CELL IMMATURITY IN RETINOPATHY OF PREMATURITYR01EY008670 · NEI · CHILDREN'S HOSPITAL BOSTON · PI SMITH, LOIS · 1992 to 2007
$3.9M
Complement Mediated Neovascularization in RetinopathyR01EY022084 · NEI · MASSACHUSETTS EYE AND EAR INFIRMARY · PI CONNOR, KIP M · 2012 to 2015
$1.8M
Surrogate Markers for Early Stage Diabetic RetinopathyR21EY014811 · NEI · CHILDREN'S HOSPITAL BOSTON · PI SMITH, LOIS · 2002 to 2003
$398k
Dietary Control Angiogenesis in RetinopathyF32EY017789 · NEI · BOSTON CHILDREN'S HOSPITAL · PI CONNOR, KIP M · 2007 to 2008
$96k
NEI NIH HHS 1 F32EY017789-01NEI NIH HHS 5 T32 EY07145NEI NIH HHS EY017017NEI NIH HHS EY14811NEI NIH HHS F32 EY017789NEI NIH HHS R01 EY008670NEI NIH HHS R01 EY017017NEI NIH HHS R01 EY022084NEI NIH HHS R21 EY014811NEI NIH HHS T32 EY007145NICHD NIH HHS P01 HD18655NICHD NIH HHS P30 HD018655PHS HHS Y008670
6 · The paper itself

Abstract

purposeErythropoietin (EPO), an oxygen-regulated hormone stimulating erythrocyte production, was recently found to be critical for retinal angiogenesis. EPO mRNA expression levels in retina are highly elevated during the hypoxia-induced proliferation phase of retinopathy. The authors investigated the inhibition of retinal EPO mRNA expression with RNA interference as a potential strategy to suppress retinal neovascularization and to prevent proliferative retinopathy.

methodsThe authors used a mouse model of oxygen-induced retinopathy. Retinal EPO and Epo receptor (EpoR) expression during retinopathy development were quantified with real-time RT-PCR in whole retina and on laser-captured retinal vessels and neuronal layers. Retinal hypoxia was assessed with an oxygen-sensitive hypoxyprobe. A small interference RNA (siRNA) targeting EPO or control negative siRNA was injected intravitreally at postnatal (P) day 12, P14, and P15 during the hypoxic phase, and the effect on neovascularization was evaluated in retinal flatmounts at P17.

resultsRetinal EPO mRNA expression in total retina was suppressed during the initial phase of vessel loss in retinopathy and was significantly elevated during the hypoxia-induced proliferative phase in all three neuronal layers in the retina, corresponding to an increased level of retinal hypoxia. EpoR mRNA expression levels also increased during the second neovascular phase, specifically in hypoxia-induced neovascular vessels. Intravitreous injection of EPO siRNA effectively inhibited approximately 60% of retinal EPO mRNA expression and significantly suppressed retinal neovascularization by approximately 40%.

conclusionsInhibiting EPO mRNA expression with siRNA is effective in suppressing retinal neovascularization, suggesting EPO siRNA is a potentially useful pharmaceutical intervention for treating proliferative retinopathy.

Indexed as

AnimalsAnimals, NewbornDisease Models, AnimalErythropoietinFluorescent Antibody Technique, IndirectGene Expression RegulationHumansInfant, NewbornInjectionsMiceMicroscopy, ConfocalOxygenReceptors, ErythropoietinRetinal NeovascularizationRetinal VesselsRetinopathy of PrematurityErythropoietinOxygenReceptors, ErythropoietinRNA, MessengerRNA, Small Interfering

Identifiers

PMID18952918
PMCPMC2892257
OpenAlexW1982042273

What OpenQuestion holds

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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.