Genome-wide determination of DNA methylation by Hpa II tiny fragment enrichment by ligation-mediated PCR (HELP) for the study of acute leukemias

Maria E. Figueroa, Ari Melnick, John M. Greally

Research output: Chapter in Book/Report/Conference proceedingChapter

29 Scopus citations

Abstract

Aberrant distribution of cytosine methylation in cancer has been linked to deregulation of gene expression and genomic instability. DNA methylation changes in cancer include both hyper and hypomethylation, and the precise localization of these changes is directly related to the impact they have on gene regulation. To determine both the localization and extent of DNA methylation status under different conditions, we have developed the HpaII tiny fragment enrichment by ligation-mediated PCR (HELP) assay, a microarray-based technique that allows the simultaneous interrogation of the methylation status of hundreds of thousands of CpG dinucleotides. The HELP assay allows methylation levels throughout the genome to be accurately determined so that the epigenetic state of leukemia cells can be identified, compared, and contrasted.

Original languageEnglish (US)
Title of host publicationLeukemia
Subtitle of host publicationMethods and Protocols
EditorsChi Wai Eric So
Pages395-407
Number of pages13
DOIs
StatePublished - Dec 1 2009

Publication series

NameMethods in Molecular Biology
Volume538
ISSN (Print)1064-3745

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Keywords

  • Acute leukemia
  • CpG dinucleotide
  • Cytosine methylation
  • Epigenetic
  • Epigenome
  • Microarray

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics

Cite this

Figueroa, M. E., Melnick, A., & Greally, J. M. (2009). Genome-wide determination of DNA methylation by Hpa II tiny fragment enrichment by ligation-mediated PCR (HELP) for the study of acute leukemias. In C. W. E. So (Ed.), Leukemia: Methods and Protocols (pp. 395-407). (Methods in Molecular Biology; Vol. 538). https://doi.org/10.1007/978-1-59745-418-6_20