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Cited by 294

The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.

Microarray-based DNA methylation profiling: technology and applications

Open access
Schumacher, A.·2006·Nucleic Acids Research

Abstract

This work is dedicated to the development of a technology for unbiased, high-throughput DNA methylation profiling of large genomic regions. In this method, unmethylated and methylated DNA fractions are enriched using a series of treatments with methylation sensitive restriction enzymes, and interrogated on microarrays. We have investigated various aspects of the technology including its replicability, informativeness, sensitivity and optimal PCR conditions using microarrays containing oligonucleotides representing 100 kb of genomic DNA derived from the chromosome 22 COMT region in addition to 12 192 element CpG island microarrays. Several new aspects of methylation profiling are provided, including the parallel identification of confounding effects of DNA sequence variation, the description of the principles of microarray design for epigenomic studies and the optimal choice of methylation sensitive restriction enzymes. We also demonstrate the advantages of using the unmethylated DNA fraction versus the methylated one, which substantially improve the chances of detecting DNA methylation differences. We applied this methodology for fine-mapping of methylation patterns of chromosomes 21 and 22 in eight individuals using tiling microarrays consisting of over 340 000 oligonucleotide probe pairs. The principles developed in this work will help to make epigenetic profiling of the entire human genome a routine procedure.

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Metadata

Authors
Schumacher, A.
Venue
Nucleic Acids Research
Published
2006-01-30
Volume
34
Issue
2
Pages
528-542
ISSN
  • 0305-1048 (ISSN-L)
  • 1362-4962
OpenAlex
W2104429441
Cited by
294
References
40
FWCI
14.12
Type
journal article
Language
en
Open access
gold

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Schumacher, A. (2006). Microarray-based DNA methylation profiling: technology and applications. Nucleic Acids Research. https://doi.org/10.1093/nar/gkj461

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