Evidence map›Paper›PMID 28210097›Full record

ArticleMolecular vision2017

Epac1 agonist decreased inflammatory proteins in retinal endothelial cells, and loss of Epac1 increased inflammatory proteins in the retinal vasculature of mice.

Li Liu, Youde Jiang, Adam Chahine, Elizabeth Curtiss, Jena J Steinle

Open access · greenAbstract read
In one paragraph

Article in Molecular vision, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.3field-weighted citation impact, top 13% 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, 25 citations in OpenAlex.

  1. Review
  2. Ephrin B1 Regulates Inflammatory Pathways in Retinal Müller Cells.Journal of diabetes and clinical research · 2024
    Article
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  4. Review
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  15. Review
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  18. PKA regulates HMGB1 through activation of IGFBP-3 and SIRT1 in human retinal endothelial cells cultured in high glucose.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2018
    Article
  19. 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.

Li LiuDepartment of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI.
Youde JiangDepartment of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI.
Adam ChahineDepartment of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI.
Elizabeth CurtissDepartment of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI.
Jena J SteinleDepartment of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, MI; Department of Ophthalmology, Wayne State University School of Medicine, Detroit, MI.
Wayne State University · US

Funding

Regional Pilot And Feasibility Study Grants ProgramP30DK020572 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI DAVID P OLSON · 2013 to 2026
$24.3M
CORE--MOLECULAR BIOLOGYP30EY013080 · NEI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI JOHNSON, DIANNA AMMONS · 2000 to 2010
$3.7M
Compound 49b Prevents Retinal Endothelial Cell Death Through IGFBP-3 LevelsR01EY022045 · NEI · WAYNE STATE UNIVERSITY · PI STEINLE, JENA J · 2012 to 2016
$1.8M
NEI NIH HHS P30 EY013080NEI NIH HHS R01 EY022045NIDDK NIH HHS P30 DK020572
6 · The paper itself

Abstract

purposeIncreased inflammatory mediator levels are reported in diabetic retinopathy. We previously reported that β-adrenergic receptor agonists reduced inflammatory mediators in the diabetic retina; however, these agents cannot be given systemically. Here, we investigated whether Epac1 is key to the protective effects of β-adrenergic receptor agonists.

methodsWe cultured primary human retinal endothelial cells (RECs) in normal (5 mM) or high (25 mM) glucose and treated them with an Epac1-specific agonist. Additionally, we generated Epac1 conditional vascular endothelial cell knockout mice by breeding Epac1 floxed mice with Cdh5 Cre mice to investigate the role of Epac1 in the retinal levels of tumor necrosis factor alpha (TNF-α), interleukin-1β (IL-1β), nuclear factor kappa beta (NFκB), and inhibitor of kappa beta (IκB). Confocal microscopy was performed to localize Epac1 in the mouse retina.

resultsData showed that high glucose increased the TNF-α and IL-1β levels in the RECs, which were reduced cells treated with the Epac1 agonist. The loss of Epac1 in the retinas of the conditional knockout mice resulted in statistically significantly increased levels of TNF-α and IL-1β, as well as NFκB.

conclusionsThese data indicate that Epac1 may be protective to the retina through inhibition of key inflammatory mediators.

Indexed as

AnimalsEndothelial CellsFemaleGuanine Nucleotide Exchange FactorsHumansInflammationInterleukin-1betaMaleMice, KnockoutNF-kappa BPhosphorylationRetinaTumor Necrosis Factor-alphaEpac protein, mouseGuanine Nucleotide Exchange FactorsInterleukin-1betaNF-kappa BTumor Necrosis Factor-alpha

Identifiers

PMID28210097
PMCPMC5287445
OpenAlexW2584347113

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.