Abstract
Epigenetic landscapes can shape physiologic and disease phenotypes. We used integrative, high resolution multi-omics methods to delineate the methylome landscape and characterize the oncogenic drivers of esophageal squamous cell carcinoma (ESCC). We found 98% of CpGs are hypomethylated across the ESCC genome. Hypo-methylated regions are enriched in areas with heterochromatin binding markers (H3K9me3, H3K27me3), while hyper-methylated regions are enriched in polycomb repressive complex (EZH2/SUZ12) recognizing regions. Altered methylation in promoters, enhancers, and gene bodies, as well as in polycomb repressive complex occupancy and CTCF binding sites are associated with cancer-specific gene dysregulation. Epigenetic-mediated activation of non-canonical WNT/β-catenin/MMP signaling and a YY1/lncRNA ESCCAL-1/ribosomal protein network are uncovered and validated as potential novel ESCC driver alterations. This study advances our understanding of how epigenetic landscapes shape cancer pathogenesis and provides a resource for biomarker and target discovery.
Original language | English |
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Article number | 3675 |
Pages (from-to) | 3675 |
Journal | Nature Communications |
Volume | 11 |
Issue number | 1 |
DOIs | |
State | Published - Jul 22 2020 |
Keywords
- Aged
- Biomarkers, Tumor/genetics
- Cell Line, Tumor
- Chromatin Immunoprecipitation Sequencing
- Cohort Studies
- CpG Islands
- DNA Methylation
- Datasets as Topic
- Epigenesis, Genetic
- Esophageal Neoplasms/genetics
- Esophageal Squamous Cell Carcinoma/genetics
- Esophagectomy
- Esophagus/pathology
- Female
- Gene Expression Regulation, Neoplastic
- Genomics
- Heterochromatin/metabolism
- Histones/genetics
- Humans
- Male
- Middle Aged
- Promoter Regions, Genetic/genetics
- Proteomics
- RNA-Seq
- Whole Genome Sequencing