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Epigenetics in ocular diseases.

Melissa M Liu1, Chi-Chao Chan, Jingsheng Tuo

  • 1Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD ; Johns Hopkins University School of Medicine, Baltimore, MD, USA.

Current Genomics
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Summary
This summary is machine-generated.

Epigenetics, including DNA methylation and microRNAs, influences gene expression and is linked to eye diseases. Dysregulation of these epigenetic factors contributes to various common ocular conditions.

Keywords:
Age-related macular generationCataractDNA methylationDiabetic retinopathyEpigeneticsmicroRNA.

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Area of Science:

  • Ocular epigenetics
  • Molecular ophthalmology

Background:

  • Epigenetics involves heritable gene expression changes without altering DNA sequence.
  • Key epigenetic mechanisms include DNA methylation, histone modifications, and microRNAs.
  • Environmental factors can modify epigenetic patterns, linking them to disease development.

Purpose of the Study:

  • To review the role of epigenetics in common ocular diseases.
  • To focus on DNA methylation and microRNAs in eye conditions.

Main Methods:

  • Review of existing literature on epigenetics in ocular diseases.
  • Focus on DNA methylation, histone modifications, and microRNAs.
  • Analysis of associations between epigenetic dysregulation and specific eye conditions.

Main Results:

  • Aberrant DNA methylation is linked to age-related macular degeneration, oxidative stress, cataract, pterygium, and retinoblastoma.
  • Histone modification changes are observed in diabetic retinopathy and glaucoma models.
  • Altered microRNA expression is associated with ocular inflammation, retinal degeneration, angiogenesis, diabetic retinopathy, and neoplasms.

Conclusions:

  • Epigenetic dysregulation is a significant factor in common ocular diseases.
  • DNA methylation and microRNAs are critical epigenetic regulators in the eye.
  • Epigenetic mechanisms represent potential therapeutic targets for eye diseases.