Review of processing and analysis methods for DNA methylation array data

被引:137
作者
Wilhelm-Benartzi, C. S. [1 ]
Koestler, D. C. [2 ]
Karagas, M. R. [2 ]
Flanagan, J. M. [1 ]
Christensen, B. C. [2 ,3 ]
Kelsey, K. T. [4 ,5 ]
Marsit, C. J. [2 ,3 ]
Houseman, E. A. [6 ]
Brown, R. [1 ,7 ]
机构
[1] Univ London Imperial Coll Sci Technol & Med, Epigenet Unit, Div Canc, Dept Surg & Canc,Fac Med,Ovarian Canc Act Res Ctr, London W12 0NN, England
[2] Dartmouth Coll, Geisel Sch Med, Sect Biostat & Epidemiol, Hanover, NH 03755 USA
[3] Dartmouth Coll, Geisel Sch Med, Dept Pharmacol & Toxicol, Hanover, NH 03755 USA
[4] Brown Univ, Dept Pathol & Lab Med, Providence, RI 02912 USA
[5] Brown Univ, Dept Epidemiol, Providence, RI 02912 USA
[6] Oregon State Univ, Dept Publ Hlth, Corvallis, OR 97331 USA
[7] Inst Canc Res, Sect Mol Pathol, Sutton, Surrey, England
关键词
DNA methylation; microarray; processing; analysis; bioconductor and R packages; GENOME-WIDE METHYLATION; SURROGATE VARIABLE ANALYSIS; ILLUMINA INFINIUM PLATFORM; GRAPHICAL USER-INTERFACE; MICROARRAY DATA; DIFFERENTIAL METHYLATION; GENE-EXPRESSION; QUANTILE NORMALIZATION; SUBSET-QUANTILE; R PACKAGE;
D O I
10.1038/bjc.2013.496
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
The promise of epigenome-wide association studies and cancer-specific somatic DNA methylation changes in improving our understanding of cancer, coupled with the decreasing cost and increasing coverage of DNA methylation microarrays, has brought about a surge in the use of these technologies. Here, we aim to provide both a review of issues encountered in the processing and analysis of array-based DNA methylation data and a summary of the advantages of recent approaches proposed for handling those issues, focusing on approaches publicly available in open-source environments such as R and Bioconductor. We hope that the processing tools and analysis flowchart described herein will facilitate researchers to effectively use these powerful DNA methylation array-based platforms, thereby advancing our understanding of human health and disease.
引用
收藏
页码:1394 / 1402
页数:9
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