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Enhanced Reduced Representation Bisulfite Sequencing for Assessment of DNA Methylation at Base Pair Resolution
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Unraveling the clinical impact of differential DNA methylation in PDAC: A systematic review.

Julia Adriana Kasmirski1, Raj Roy1, Christopher Wu1

  • 1Department of Surgery, University of Alabama at Birmingham, Birmingham, AL, USA.

European Journal of Cancer (Oxford, England : 1990)
|March 28, 2025
PubMed
Summary

DNA methylation in pancreatic ductal adenocarcinoma (PDAC) impacts prognosis. Hypermethylation of SFRP1 and NPTX2 genes correlates with poor outcomes, suggesting potential therapeutic targets for this aggressive cancer.

Keywords:
EpigeneticsMethylationPDACPancreatic cancer

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Area of Science:

  • Oncology
  • Epigenetics
  • Molecular Biology

Background:

  • Pancreatic ductal adenocarcinoma (PDAC) presents a significant challenge due to high mortality rates.
  • Its poor prognosis is linked to genetic variability and epigenetic modifications like DNA methylation.
  • A comprehensive understanding of DNA methylation's clinical impact in PDAC is lacking.

Purpose of the Study:

  • To systematically review the literature on the clinical impact of DNA methylation in pancreatic ductal adenocarcinoma.
  • To identify specific genes or CpG sites associated with PDAC diagnosis, prognosis, or survival.

Main Methods:

  • A systematic literature review was conducted following PRISMA guidelines.
  • Searches were performed across multiple databases including CINAHL, Cochrane, Embase, Web of Science, Ovid Medline, and Google Scholar.
  • Studies involving PDAC patients with data on gene/CpG site methylation affecting outcomes were included.

Main Results:

  • Out of 2402 initial articles, 19 studies met the inclusion criteria.
  • SFRP1 and NPTX2 were the most frequently identified genes implicated in PDAC pathogenesis.
  • Hypermethylation of SFRP1 and NPTX2 was associated with a poorer prognosis in PDAC patients.

Conclusions:

  • Epigenetic alterations, particularly DNA methylation, play a role in PDAC.
  • Methylation of specific genes like SFRP1 and NPTX2 may serve as prognostic markers and potential therapeutic targets.
  • Personalized epigenetic analysis could guide future PDAC treatment strategies.