Abstract
DNA methylation is essential for normal development1,2,3 and has been implicated in many pathologies including cancer4,5. Our knowledge about the genome-wide distribution of DNA methylation, how it changes during cellular differentiation and how it relates to histone methylation and other chromatin modifications in mammals remains limited. Here we report the generation and analysis of genome-scale DNA methylation profiles at nucleotide resolution in mammalian cells. Using high-throughput reduced representation bisulphite sequencing6 and single-molecule-based sequencing, we generated DNA methylation maps covering most CpG islands, and a representative sampling of conserved non-coding elements, transposons and other genomic features, for mouse embryonic stem cells, embryonic-stem-cell-derived and primary neural cells, and eight other primary tissues. Several key findings emerge from the data. First, DNA methylation patterns are better correlated with histone methylation patterns than with the underlying genome sequence context. Second, methylation of CpGs are dynamic epigenetic marks that undergo extensive changes during cellular differentiation, particularly in regulatory regions outside of core promoters. Third, analysis of embryonic-stem-cell-derived and primary cells reveals that ‘weak’ CpG islands associated with a specific set of developmentally regulated genes undergo aberrant hypermethylation during extended proliferation in vitro, in a pattern reminiscent of that reported in some primary tumours. More generally, the results establish reduced representation bisulphite sequencing as a powerful technology for epigenetic profiling of cell populations relevant to developmental biology, cancer and regenerative medicine.
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References
Bestor, T. H. The DNA methyltransferases of mammals. Hum. Mol. Genet. 9, 2395–2402 (2000)
Bird, A. DNA methylation patterns and epigenetic memory. Genes Dev. 16, 6–21 (2002)
Reik, W. Stability and flexibility of epigenetic gene regulation in mammalian development. Nature 447, 425–432 (2007)
Feinberg, A. P. The epigenetics of cancer etiology. Semin. Cancer Biol. 14, 427–432 (2004)
Jones, P. A. & Baylin, S. B. The epigenomics of cancer. Cell 128, 683–692 (2007)
Meissner, A. et al. Reduced representation bisulfite sequencing for comparative high-resolution DNA methylation analysis. Nucleic Acids Res. 33, 5868–5877 (2005)
Frommer, M. et al. A genomic sequencing protocol that yields a positive display of 5-methylcytosine residues in individual DNA strands. Proc. Natl Acad. Sci. USA 89, 1827–1831 (1992)
Eckhardt, F. et al. DNA methylation profiling of human chromosomes 6, 20 and 22. Nature Genet. 38, 1378–1385 (2006)
Cokus, S. J. et al. Shotgun bisulphite sequencing of the Arabidopsis genome reveals DNA methylation patterning. Nature 452, 215–219 (2008)
Altshuler, D. et al. An SNP map of the human genome generated by reduced representation shotgun sequencing. Nature 407, 513–516 (2000)
Mikkelsen, T. S. et al. Genome-wide maps of chromatin state in pluripotent and lineage-committed cells. Nature 448, 553–560 (2007)
Weber, M. et al. Distribution, silencing potential and evolutionary impact of promoter DNA methylation in the human genome. Nature Genet. 39, 457–466 (2007)
Saxonov, S., Berg, P. & Brutlag, D. L. A genome-wide analysis of CpG dinucleotides in the human genome distinguishes two distinct classes of promoters. Proc. Natl Acad. Sci. USA 103, 1412–1417 (2006)
Bernstein, B. et al. A bivalent chromatin structure marks key Developmental genes in embryonic stem cells. Cell 125, 315–326 (2006)
Illingworth, R. et al. A novel CpG island set identifies tissue-specific methylation at developmental gene loci. PLoS Biol. 6, e22 (2008)
West, A. G. & Fraser, P. Remote control of gene transcription. Hum. Mol. Genet. 14 (Spec No 1) R101–R111 (2005)
Heintzman, N. D. et al. Distinct and predictive chromatin signatures of transcriptional promoters and enhancers in the human genome. Nature Genet. 39, 311–318 (2007)
Bernstein, B. E. et al. Genomic maps and comparative analysis of histone modifications in human and mouse. Cell 120, 169–181 (2005)
Edwards, C. A. & Ferguson-Smith, A. C. Mechanisms regulating imprinted genes in clusters. Curr. Opin. Cell Biol. 19, 281–289 (2007)
Ooi, S. K. et al. DNMT3L connects unmethylated lysine 4 of histone H3 to de novo methylation of DNA. Nature 448, 714–717 (2007)
Esteve, P. O. et al. Direct interaction between DNMT1 and G9a coordinates DNA and histone methylation during replication. Genes Dev. 20, 3089–3103 (2006)
Conti, L. et al. Niche-independent symmetrical self-renewal of a mammalian tissue stem cell. PLoS Biol. 3, e283 (2005)
Voo, K. S., Carlone, D. L., Jacobsen, B. M., Flodin, A. & Skalnik, D. G. Cloning of a mammalian transcriptional activator that binds unmethylated CpG motifs and shares a CXXC domain with DNA methyltransferase, human trithorax, and methyl-CpG binding domain protein 1. Mol. Cell. Biol. 20, 2108–2121 (2000)
Sharma, M. K. et al. Distinct genetic signatures among pilocytic astrocytomas relate to their brain region origin. Cancer Res. 67, 890–900 (2007)
Aubert, J. et al. Screening for mammalian neural genes via fluorescence-activated cell sorter purification of neural precursors from Sox1–gfp knock-in mice. Proc. Natl Acad. Sci. USA 100 (Suppl 1). 11836–11841 (2003)
Jones, P. A., Wolkowicz, M. J., Harrington, M. A. & Gonzales, F. Methylation and expression of the Myo D1 determination gene. Phil. Trans. R. Soc. Lond. B 326, 277–284 (1990)
Smiraglia, D. J. et al. Excessive CpG island hypermethylation in cancer cell lines versus primary human malignancies. Hum. Mol. Genet. 10, 1413–1419 (2001)
Shen, Y., Chow, J., Wang, Z. & Fan, G. Abnormal CpG island methylation occurs during in vitro differentiation of human embryonic stem cells. Hum. Mol. Genet. 15, 2623–2635 (2006)
Bouhon, I. A., Joannides, A., Kato, H., Chandran, S. & Allen, N. D. Embryonic stem cell-derived neural progenitors display temporal restriction to neural patterning. Stem Cells 24, 1908–1913 (2006)
Ohm, J. E. & Baylin, S. B. Stem cell chromatin patterns: an instructive mechanism for DNA hypermethylation? Cell Cycle 6, 1040–1043 (2007)
Acknowledgements
We thank the staff of the Broad Institute Genome Sequencing Platform for assistance with data generation and B. Ramsahoye for the nearest neighbour analysis. This research was supported by funds from the National Human Genome Research Institute, the National Cancer Institute, and the Broad Institute of MIT and Harvard.
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Supplementary Information 1
This file contains Supplementary Tables S1-S7 and Supplementary Figures S1-S9 with Legends. (PDF 11442 kb)
Supplementary Information 2
The file contains Supplementary Data S1. DNA and histone methylation states, and associated expression levels, for all analyzed high-CpG density promoters. (XLS 5606 kb)
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Meissner, A., Mikkelsen, T., Gu, H. et al. Genome-scale DNA methylation maps of pluripotent and differentiated cells. Nature 454, 766–770 (2008). https://doi.org/10.1038/nature07107
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DOI: https://doi.org/10.1038/nature07107