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Genome-Wide Analysis of DNA Methylation in Gastrointestinal Cancer
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Genome-Wide DNA Methylation Protocol for Epigenetics Studies.

Annalaura Mancia1

  • 1Department of Life Science and Biotechnology, University of Ferrara, Ferrara, Italy. annalaura.mancia@unife.it.

Methods in Molecular Biology (Clifton, N.J.)
|June 21, 2022
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Summary

This study presents a new protocol for preparing DNA for next-generation sequencing (NGS) to analyze genome-wide DNA methylation patterns. This method facilitates the study of epigenetic modifications involved in biological processes and diseases.

Keywords:
Bisulfite conversionCpG islandMethylated cytosineReduced Representation Bisulfite Sequencing

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Area of Science:

  • Epigenetics and Molecular Biology
  • Genomics and Bioinformatics

Background:

  • Epigenetic modifications are heritable changes in gene expression not encoded by DNA sequence.
  • DNA methylation, forming 5-methylcytosine (5mC) via DNA methyltransferases, is a key epigenetic mechanism.
  • DNA methylation influences chromatin structure and can down-regulate gene expression, impacting biological processes and diseases.

Purpose of the Study:

  • To present a standardized protocol for DNA sample preparation.
  • To enable genome-wide DNA methylation analysis using next-generation sequencing (NGS).
  • To facilitate research into the role of DNA methylation in biological processes and diseases.

Main Methods:

  • Development of a DNA sample preparation protocol.
  • Adaptation of the protocol for compatibility with NGS workflows.
  • Validation of the protocol for genome-wide methylation analysis.

Main Results:

  • A robust method for obtaining DNA samples suitable for NGS sequencing was established.
  • The protocol enables efficient and accurate genome-wide DNA methylation profiling.
  • The method is ready for application in diverse research settings.

Conclusions:

  • The presented protocol provides a crucial tool for advancing DNA methylation research.
  • This method supports the investigation of epigenetic regulation in health and disease.
  • Genome-wide methylation analysis via NGS is made more accessible.