Evidence map›Paper›PMID 23423566›Full record

ArticleDiabetes2013

Regulation of matrix metalloproteinase-9 by epigenetic modifications and the development of diabetic retinopathy.

Qing Zhong, Renu A Kowluru

Open access · hybridAbstract read
In one paragraph

Article in Diabetes, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed
14.3field-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

74 citing papers in PubMed, 136 citations in OpenAlex.

  1. Bone morphogenetic protein signaling as a key regulator of retinal fibrosis.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Review
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  4. Article
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  6. Review
  7. Review
  8. Article
  9. Metabolic memory: mechanisms and diseases.Signal transduction and targeted therapy · 2024
    Review
  10. Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Review
  16. Review
  17. Review
  18. Article
  19. Review
  20. Epigenetic modifications in diabetes.Metabolism: clinical and experimental · 2022
    Review

14 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

2 authors at 2 institutions in 1 country.

Qing ZhongKresge Eye Institute, Wayne State University, Detroit, Michigan, USA.
Renu A Kowluru
Kresge Eye Institute · USWayne State University · US

Funding

Regional Pilot And Feasibility Study Grants ProgramP30DK020572 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Mehboob A Hussain · 2013 to 2026
$24.3M
Role of Ras in Retinal Cell Death in DiabetesR01EY014370 · NEI · WAYNE STATE UNIVERSITY · PI KOWLURU, RENU A. · 2004 to 2023
$4.8M
Glycemic Control and Progression of Diabetic RetinopathyR01EY017313 · NEI · WAYNE STATE UNIVERSITY · PI KOWLURU, RENU A. · 2007 to 2022
$4.2M
NADPH Oxidase, Mitochondrial Dysfunction and Diabetic RetinopathyR01EY022230 · NEI · WAYNE STATE UNIVERSITY · PI KOWLURU, ANJANEYULU, KOWLURU, RENU A. · 2012 to 2022
$3.4M
NEI NIH HHS R01 EY014370NEI NIH HHS R01 EY017313NEI NIH HHS R01 EY022230NIDDK NIH HHS P30 DK020572
6 · The paper itself

Abstract

Diabetes activates retinal matrix metalloproteinase-9 (MMP-9), and MMP-9 damages the mitochondria and augments capillary cell apoptosis. Our aim is to elucidate the mechanism responsible for MMP-9 activation. Histone modifications and recruitment of the nuclear transcriptional factor-κB (p65 subunit) at the MMP-9 promoter and the activity of lysine-specific demethylase 1 (LSD1) were measured in the retina from streptozotocin-induced diabetic rats. The role of LSD1 in MMP-9 activation was investigated in isolated retinal endothelial cells transfected with LSD1 small interfering RNA (siRNA). The results were confirmed in the retina from human donors with diabetic retinopathy. Diabetes decreased histone H3 dimethyl lysine 9 (H3K9me2) and increased acetyl H3K9 (Ac-H3K9) and p65 at the retinal MMP-9 promoter. LSD1 enzyme activity and its transcripts were elevated. LSD1 siRNA ameliorated the glucose-induced decrease in H3K9me2 and increase in p65 at the MMP-9 promoter, and prevented MMP-9 activation, mitochondrial damage, and cell apoptosis. Human donors with diabetic retinopathy had similar epigenetic changes at the MMP-9 promoter. Thus, activated LSD1 hypomethylates H3K9 at the MMP-9 promoter and this frees up that lysine 9 for acetylation. Increased Ac-H3K9 facilitates the recruitment of p65, resulting in MMP-9 activation and mitochondrial damage. Thus, the regulation of LSD1 by molecular or pharmacological means has the potential to retard the development of diabetic retinopathy.

Indexed as

Epigenesis, GeneticAdultAgedAnimalsApoptosisDiabetes Mellitus, ExperimentalDiabetic RetinopathyEndothelial CellsGlucoseHistone DemethylasesHistonesHumansMaleMatrix Metalloproteinase 9Middle AgedPromoter Regions, GeneticGlucoseHistone DemethylasesHistonesKDM1A protein, ratMatrix Metalloproteinase 9Reactive Oxygen Species

Identifiers

PMID23423566
PMCPMC3712057
OpenAlexW2143067028

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.