Cited by 296Epigenetics and DNA MethylationAcute Myeloid Leukemia ResearchChromatin Remodeling and Cancer

Base-Pair Resolution DNA Methylation Sequencing Reveals Profoundly Divergent Epigenetic Landscapes in Acute Myeloid Leukemia

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Akalin, Altuna, Garrett-Bakelman, Francine E., Kormaksson, Matthias, Busuttil, Jennifer, Zhang, Lu, Khrebtukova, Irina, Milne, Thomas A., Huang, Yongsheng +14 more·2012·PLoS Genetics

Abstract

We have developed an enhanced form of reduced representation bisulfite sequencing with extended genomic coverage, which resulted in greater capture of DNA methylation information of regions lying outside of traditional CpG islands. Applying this method to primary human bone marrow specimens from patients with Acute Myelogeneous Leukemia (AML), we demonstrated that genetically distinct AML subtypes display diametrically opposed DNA methylation patterns. As compared to normal controls, we observed widespread hypermethylation in IDH mutant AMLs, preferentially targeting promoter regions and CpG islands neighboring the transcription start sites of genes. In contrast, AMLs harboring translocations affecting the MLL gene displayed extensive loss of methylation of an almost mutually exclusive set of CpGs, which instead affected introns and distal intergenic CpG islands and shores. When analyzed in conjunction with gene expression profiles, it became apparent that these specific patterns of DNA methylation result in differing roles in gene expression regulation. However, despite this subtype-specific DNA methylation patterning, a much smaller set of CpG sites are consistently affected in both AML subtypes. Most CpG sites in this common core of aberrantly methylated CpGs were hypermethylated in both AML subtypes. Therefore, aberrant DNA methylation patterns in AML do not occur in a stereotypical manner but rather are highly specific and associated with specific driving genetic lesions.

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  • Variable methylation levels were observed globally in AML samples, and methylation at CpG islands was significantly higher in AML compared with normal PBMC and HSPC.

    “We observed variable methylation levels globally in AML samples (Extended Data Fig. 11a) and significantly higher methylation at CpG islands in AML compared with normal PBMC and HSPC (Fig. 6a), consistent with previous findings46.”

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  1. [51]McLean CY Bristor D Hiller M Clarke SL Schaar BT 2010 GREAT improves functional interpretation of cis-regulatory regions. Nature biotechnology 28 495 501 PMC4840234 20436461

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Authors
Akalin, A., Garrett-Bakelman, F. E., Kormaksson, M., Busuttil, J., Zhang, L., Khrebtukova, I., Milne, T. A., Huang, Y., Biswas, D., Hess, J. L., Allis, C. D., Roeder, R. G., Valk, P. J. M., Löwenberg, B., Delwel, R., Fernandez, H. F., Paietta, E., Tallman, M. S., Schroth, G. P., Mason, C. E., Melnick, A., & Figueroa, M. E.
Affiliations
  • Cornell University (US)
  • Weill Cornell Medicine (US)
  • Illumina (United States) (US)
  • University of Oxford (GB)
  • University of Michigan (US)
  • Rockefeller University (US)
  • Erasmus MC (NL)
  • Moffitt Cancer Center (US)
  • Montefiore Medical Center (US)
  • Memorial Sloan Kettering Cancer Center (US)
Corresponding author
  • Mason, Christopher E.
  • Melnick, Ari
Venue
PLoS Genetics
Published
2012-06-21
Volume
8
Issue
6
Pages
e1002781
ISSN
  • 1553-7390 (ISSN-L)
  • 1553-7404
OpenAlex
W2008420899
Cited by
296
References
53
Citations by year
2026: 3 · 2025: 7 · 2024: 10 · 2023: 7 · 2022: 13 · 2021: 21 · 2020: 24 · 2019: 15 · 2018: 21 · 2017: 26 · 2016: 27 · 2015: 31 · 2014: 41 · 2013: 39 · 2012: 11
FWCI
15.70
Type
journal article
Language
en
Open access
Locations
  • PLoS Genetics (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (publishedVersion, other-oa)
  • MDC Repository (Max-Delbrueck-Center for Molecular Medicine) (acceptedVersion)
  • EUR Research Repository (Erasmus University Rotterdam) (submittedVersion, other-oa)
  • RePub (Erasmus University Rotterdam) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
  • EUR Research Repository (Erasmus University Rotterdam) (submittedVersion)
  • RePub (Erasmus University Rotterdam) (submittedVersion)
Funders
  • Leukemia and Lymphoma Society (7132-08)
  • National Institutes of Health
  • National Institute on Aging (P30AG013283)
  • National Cancer Institute (R01CA151425, U24CA114737)
  • National Institute of Neurological Disorders and Stroke (R01NS076465)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Health Sciences › Medicine › Hematology › Acute Myeloid Leukemia Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chromatin Remodeling and Cancer
Keywords
DNA methylation, acute myeloid leukemia, reduced representation bisulfite sequencing, IDH mutation, MLL translocation, promoter hypermethylation, gene expression regulation, epigenetic heterogeneity, AML subtypes, bone marrow, CpG islands
MeSH terms
Base Sequence, Humans, Isocitrate Dehydrogenase, Molecular Sequence Data, Promoter Regions, Genetic, Histone-Lysine N-Methyltransferase, Leukemia, Myeloid, Acute, Genome, Human, Gene Expression Regulation, Neoplastic, Sequence Analysis, DNA, CpG Islands, DNA Methylation, Epigenesis, Genetic, HCT116 Cells, Myeloid-Lymphoid Leukemia Protein

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