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Sample Preparation to Bioinformatics Analysis of DNA Methylation: Association Strategy for Obesity and Related Trait Studies
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Metabolism and epigenetics.

Ryan Janke1, Anne E Dodson1, Jasper Rine1

  • 1Department of Molecular and Cell Biology and California Institute for Quantitative Biosciences, University of California, Berkeley, California 94720.

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Summary
This summary is machine-generated.

Epigenetic marks, like DNA methylation, integrate cellular metabolism and gene expression. Key metabolites, including acetyl-CoA and S-adenosyl methionine, are crucial for these epigenetic processes and can be altered in cancer.

Keywords:
S-adenosyl methionineacetylationchromatin modificationfolatemethylationoncometabolite

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Epigenetics

Background:

  • Cellular information inheritance relies on epigenetic mechanisms, primarily DNA methylation and histone modifications.
  • These modifications influence chromatin structure and act as binding sites for specific proteins.
  • Epigenetic mark formation and removal involve enzymes that consume or produce metabolites.

Purpose of the Study:

  • To review the central roles of metabolites in epigenetic processes.
  • To explore how oncogenic mutations can disrupt epigenetic programs through altered metabolite levels.

Main Methods:

  • Literature review focusing on the interplay between metabolites and epigenetic modifications.
  • Analysis of the enzymatic reactions involved in creating and removing epigenetic marks.
  • Discussion of metabolic alterations in cancer and their epigenetic consequences.

Main Results:

  • Key metabolites such as acetyl-CoA, S-adenosyl methionine (SAM), and NAD(+) are essential for epigenetic regulation.
  • Metabolite levels directly influence the activity of enzymes responsible for DNA methylation and histone modification.
  • Accumulation of specific metabolites due to oncogenic mutations can reprogram the epigenome.

Conclusions:

  • Epigenetic marks serve as a critical interface between cellular metabolic state and chromatin regulation.
  • Metabolic pathways are integral to maintaining epigenetic fidelity, and their dysregulation can drive disease, including cancer.