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Epigenetic Regulation01:46

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Peptides as epigenetic modulators: therapeutic implications.

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  • 1Drug Quality and Registration (DruQuaR) group, Faculty of Pharmaceutical Sciences, Ghent University, Ottergemsesteenweg 460, 9000, Ghent, Belgium.

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Peptides from various sources impact epigenetic regulation by modifying DNA methylation and histone acetylation. Further research into peptide therapeutics is crucial for treating epigenetic diseases like cancer.

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Area of Science:

  • Epigenetics and Molecular Biology
  • Peptide Science
  • Drug Discovery

Background:

  • Peptides, derived from endogenous, dietary, environmental, or synthetic sources, play a role in epigenetic regulation.
  • Existing epigenetic drugs are limited, with only two approved peptide-based drugs (romidepsin, nesiritide) by the FDA.
  • A significant knowledge gap exists regarding the epigenetic effects of peptides.

Purpose of the Study:

  • To explore the diverse mechanisms by which peptides influence epigenetic modifications.
  • To highlight the therapeutic potential of peptides in treating epigenetic-based diseases.
  • To emphasize the need for increased attention on peptides as epigenetic modulators.

Main Methods:

  • Review of scientific literature on peptide sources and their epigenetic effects.
  • Analysis of peptide interactions with DNA methylation, histone acetylation, and non-coding RNA expression.
  • Examination of current peptide therapeutics and their potential for epigenetic drug repositioning.

Main Results:

  • Endogenous peptides can block DNA methylation, regulating gene expression.
  • Dietary peptides modulate DNA methylation and histone acetylation; environmental peptides inhibit histone deacetylation.
  • Synthetic peptides can be designed to reverse or inhibit epigenetic modifications; peptides also influence non-coding RNAs.

Conclusions:

  • Peptides offer advantages over small molecules for therapeutic development, particularly for epigenetic diseases like cancer and Alzheimer's.
  • Further investigation into the epigenetic roles of peptides is warranted.
  • Repositioning existing peptide drugs for epigenetic indications is hindered by a lack of investigation into their epigenetic effects.