DNA methylation cooperates with genomic alterations during non-small cell lung cancer evolution

Aberrant DNA methylation has been described in nearly all human cancers, yet its interplay with genomic alterations during tumor evolution is poorly understood. To explore this, we performed reduced representation bisulfite sequencing on 217 tumor and matched normal regions from 59 patients with non-small cell lung cancer from the TRACERx study to deconvolve tumor methylation. We developed two metrics for integrative evolutionary analysis with DNA and RNA sequencing data. Intratumoral methylation distance quantifies intratumor DNA methylation heterogeneity. M<sub>R</sub>/M<sub>N</sub> classifies genes based on the rate of hypermethylation at regulatory (M<sub>R</sub>) versus nonregulatory (M<sub>N</sub>) CpGs to identify driver genes exhibiting recurrent functional hypermethylation. We identified DNA methylation-linked dosage compensation of essential genes co-amplified with neighboring oncogenes. We propose two complementary mechanisms that converge for copy number alteration-affected chromatin to undergo the epigenetic equivalent of an allosteric activity transition. Hypermethylated driver genes under positive selection may open avenues for therapeutic stratification of patients.

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Nature Genetics
Published
2025-09-01
DOI
https://doi.org/10.1038/s41588-025-02307-x
Citations
4
Primary Topic
Epigenetics and DNA Methylation
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article
Field-Weighted Citation Impact
3.22
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article

DNA methylation cooperates with genomic alterations during non-small cell lung cancer evolution

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4 citations
Nature Genetics
Epigenetics and DNA Methylation
3.22
article

DNA methylation cooperates with genomic alterations during non-small cell lung cancer evolution

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article en
4 citations

Abstract

Aberrant DNA methylation has been described in nearly all human cancers, yet its interplay with genomic alterations during tumor evolution is poorly understood. To explore this, we performed reduced representation bisulfite sequencing on 217 tumor and matched normal regions from 59 patients with non-small cell lung cancer from the TRACERx study to deconvolve tumor methylation. We developed two metrics for integrative evolutionary analysis with DNA and RNA sequencing data. Intratumoral methylation distance quantifies intratumor DNA methylation heterogeneity. M<sub>R</sub>/M<sub>N</sub> classifies genes based on the rate of hypermethylation at regulatory (M<sub>R</sub>) versus nonregulatory (M<sub>N</sub>) CpGs to identify driver genes exhibiting recurrent functional hypermethylation. We identified DNA methylation-linked dosage compensation of essential genes co-amplified with neighboring oncogenes. We propose two complementary mechanisms that converge for copy number alteration-affected chromatin to undergo the epigenetic equivalent of an allosteric activity transition. Hypermethylated driver genes under positive selection may open avenues for therapeutic stratification of patients.

Nature GeneticsVol. 57(9)
Semmelweis University (HU), Eötvös Loránd University (HU), Medigene (Germany) (DE), Brigham and Women's Hospital (US), Boston Children's Hospital (US), University College Hospital (GB), Swansea Bay University Health Board (GB), University Hospitals Birmingham NHS Foundation Trust (GB), The University of Texas MD Anderson Cancer Center (US), Harvard University (US), Garvan Institute of Medical Research (AU), University of British Columbia (CA), Institute of Cancer Research (GB), University of Liverpool (GB), University of Leicester (GB), Queen Mary University of London (GB), Royal Free London NHS Foundation Trust (GB), University of Cologne (DE), University of Aberdeen (GB), Guy's and St Thomas' NHS Foundation Trust (GB), Peking University (CN), Aarhus University (DK), Max Delbrück Center (DE), NHS Greater Glasgow and Clyde (GB), Singleton Hospital (GB), Peter MacCallum Cancer Centre (AU), Aberdeen Royal Infirmary (GB), Princess Alexandra Hospital NHS Trust (GB), The Francis Crick Institute (GB), Royal London Hospital (GB), Cancer Research UK (GB), Buda Health Center (HU), Golden Jubilee National Hospital (GB), Aarhus University Hospital (DK), University Hospitals of Leicester NHS Trust (GB), Whittington Hospital (GB), Harefield Hospital (GB), University Hospital Southampton NHS Foundation Trust (GB), University of Surrey (GB), University of Manchester (GB), Maastricht University (NL), Liverpool Heart and Chest Hospital (GB), London Cancer (GB), VIB-KU Leuven Center for Cancer Biology (BE), Manchester University NHS Foundation Trust (GB), NHS Grampian (GB), Sheffield Teaching Hospitals NHS Foundation Trust (GB), Oncology Institute of Vojvodina (RS), Dana-Farber Cancer Institute (US), NIHR Southampton Biomedical Research Centre (GB), Royal Marsden Hospital (GB), Peking University People's Hospital (CN), Cancer Research UK Manchester Institute (GB), Canada's Michael Smith Genome Sciences Centre (CA), The Christie NHS Foundation Trust (GB), National Cancer Centre Singapore (SG), Cancer Research UK Scotland Institute (GB), Genomics England (GB), Immune Regulation (United Kingdom) (GB), Royal Surrey NHS Foundation Trust (GB), CRUK Lung Cancer Centre of Excellence (GB), Danish Cancer Society (DK), Wythenshawe Hospital (GB), National Hospital for Neurology and Neurosurgery (GB), Genomics (United Kingdom) (GB), University Hospital Cologne (DE), Institute of Structural and Molecular Biology (GB), Queen Elizabeth University Hospital (GB), Dana-Farber Brigham Cancer Center (US), The Patients Association (GB), Cancer Research UK Manchester Centre, Berlin Institute for the Foundations of Learning and Data (DE), University College London (GB), Imperial College London (GB), Mass General Brigham (US), University of Glasgow (GB), University of Birmingham (GB), Sapienza University of Rome (IT), Epigenomics (Germany) (DE), University of Sheffield (GB)
Openalex Percentile: Top 8%
Epigenetics and DNA Methylation
3.22
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