Minfi: a flexible and comprehensive Bioconductor package for the analysis of Infinium DNA methylation microarrays
Tóm tắt
Motivation: The recently released Infinium HumanMethylation450 array (the ‘450k’ array) provides a high-throughput assay to quantify DNA methylation (DNAm) at ∼450 000 loci across a range of genomic features. Although less comprehensive than high-throughput sequencing-based techniques, this product is more cost-effective and promises to be the most widely used DNAm high-throughput measurement technology over the next several years.
Results: Here we describe a suite of computational tools that incorporate state-of-the-art statistical techniques for the analysis of DNAm data. The software is structured to easily adapt to future versions of the technology. We include methods for preprocessing, quality assessment and detection of differentially methylated regions from the kilobase to the megabase scale. We show how our software provides a powerful and flexible development platform for future methods. We also illustrate how our methods empower the technology to make discoveries previously thought to be possible only with sequencing-based methods.
Availability and implementation: http://bioconductor.org/packages/release/bioc/html/minfi.html.
Contact: [email protected]; [email protected]
Supplementary information: Supplementary data are available at Bioinformatics online.
Từ khóa
Tài liệu tham khảo
Aryee, 2011, Accurate genome-scale percentage DNA methylation estimates from microarray data, Biostatistics, 12, 197, 10.1093/biostatistics/kxq055
Berman, 2012, Regions of focal DNA hypermethylation and long-range hypomethylation in colorectal cancer coincide with nuclear lamina-associated domains, Nat. Genet., 44, 40, 10.1038/ng.969
Bibikova, 2011, High density DNA methylation array with single CpG site resolution, Genomics, 98, 288, 10.1016/j.ygeno.2011.07.007
Bolstad, 2003, A comparison of normalization methods for high density oligonucleotide array data based on variance and bias, Bioinformatics, 19, 185, 10.1093/bioinformatics/19.2.185
Dawson, 2012, Cancer epigenetics: from mechanism to therapy, Cell, 150, 12, 10.1016/j.cell.2012.06.013
Dedeurwaerder, 2013, A comprehensive overview of Infinium HumanMethylation450 data processing
Doi, 2009, Differential methylation of tissue- and cancer-specific CpG island shores distinguishes human induced pluripotent stem cells, embryonic stem cells and fibroblasts, Nat. Genet., 41, 1350, 10.1038/ng.471
Feinberg, 2007, Phenotypic plasticity and the epigenetics of human disease, Nature, 447, 433, 10.1038/nature05919
Gardiner-Garden, 1987, CpG islands in vertebrate genomes, J. Mol. Biol., 196, 261, 10.1016/0022-2836(87)90689-9
Hannum, 2012, Genome-wide methylation profiles reveal quantitative views of human aging rates, Mol. Cell, 49, 359, 10.1016/j.molcel.2012.10.016
Hansen, 2011, Increased methylation variation in epigenetic domains across cancer types, Nat. Genet., 43, 768, 10.1038/ng.865
Irizarry, 2008, Comprehensive high-throughput arrays for relative methylation (CHARM), Genome Res., 18, 780, 10.1101/gr.7301508
Jaffe, 2012, Bump hunting to identify differentially methylated regions in epigenetic epidemiology studies, Int. J. Epidemiol., 41, 200, 10.1093/ije/dyr238
Krueger, 2012, DNA methylome analysis using short bisulfite sequencing data, Nat. Methods, 9, 145, 10.1038/nmeth.1828
Leek, 2010, Tackling the widespread and critical impact of batch effects in high-throughput data, Nat. Rev. Genet., 11, 733, 10.1038/nrg2825
Lin, 2006, Reproducibility Probability Score–incorporating measurement variability across laboratories for gene selection, Nat. Biotechnol., 24, 1476, 10.1038/nbt1206-1476
Maksimovic, 2012, SWAN: Subset-quantile within array normalization for illumina infinium HumanMethylation450 BeadChips, Genome Biol., 13, R44, 10.1186/gb-2012-13-6-r44
Marabita, 2013, An evaluation of analysis pipelines for DNA methylation profiling using the Illumina HumanMethylation450 BeadChip platform, Epigenetics, 8, 333, 10.4161/epi.24008
McCall, 2010, Frozen robust multiarray analysis (fRMA), Biostatistics, 11, 242, 10.1093/biostatistics/kxp059
McCall, 2011, Assessing affymetrix GeneChip microarray quality, BMC Bioinformatics, 12, 137, 10.1186/1471-2105-12-137
Okayama, 2012, Identification of genes upregulated in ALK-positive and EGFR/KRAS/ALK-negative lung adenocarcinomas, Cancer Res., 72, 100, 10.1158/0008-5472.CAN-11-1403
Pidsley, 2013, A data-driven approach to preprocessing Illumina 450K methylation array data, BMC Genomics, 14, 293, 10.1186/1471-2164-14-293
Price, 2013, Additional annotation enhances potential for biologically-relevant analysis of the Illumina Infinium HumanMethylation450 BeadChip array, Epigenetics Chromatin, 6, 4, 10.1186/1756-8935-6-4
Rakyan, 2011, Epigenome-wide association studies for common human diseases, Nat. Rev. Genet., 12, 529, 10.1038/nrg3000
Skrzypczak, 2010, Modeling oncogenic signaling in colon tumors by multidirectional analyses of microarray data directed for maximization of analytical reliability, PLoS One, 5, e13091, 10.1371/journal.pone.0013091
Teschendorff, 2013, A beta-mixture quantile normalization method for correcting probe design bias in Illumina Infinium 450 k DNA methylation data, Bioinformatics, 29, 189, 10.1093/bioinformatics/bts680
Touleimat, 2012, Complete pipeline for Infinium((R)) Human Methylation 450K BeadChip data processing using subset quantile normalization for accurate DNA methylation estimation, Epigenomics, 4, 325, 10.2217/epi.12.21
Triche, 2013, Low-level processing of Illumina Infinium DNA Methylation BeadArrays, Nucleic Acids Res., 41, e90, 10.1093/nar/gkt090
Wang, 2012, IMA: an R package for high-throughput analysis of Illumina's 450K Infinium methylation data, Bioinformatics, 28, 729, 10.1093/bioinformatics/bts013
Wessely, 2012, Identification of DNA methylation biomarkers from Infinium arrays, Front. Genet., 3, 161, 10.3389/fgene.2012.00161
Wu, 2010, Subset quantile normalization using negative control features, J. Comput. Biol., 17, 1385, 10.1089/cmb.2010.0049
Yousefi, 2013, Considerations for normalization of DNA methylation data by Illumina 450K BeadChip assay in population studies, Epigenetics, 8, 1141, 10.4161/epi.26037