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Explainable artificial intelligence of DNA methylation-based brain tumor diagnostics
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Journal Article
Explainable artificial intelligence of DNA methylation-based brain tumor diagnostics
2025
Overview
We have recently developed a machine learning classifier that enables fast, accurate, and affordable classification of brain tumors based on genome-wide DNA methylation profiles that is widely employed in the clinic. Neuro-oncology research would benefit greatly from understanding the underlying artificial intelligence decision process, which currently remains unclear. Here, we describe an interpretable framework to explain the classifier’s decisions. We show that functional genomic regions of various sizes are predominantly employed to distinguish between different tumor classes, ranging from enhancers and CpG islands to large-scale heterochromatic domains. We detect a high degree of genomic redundancy, with many genes distinguishing individual tumor classes, explaining the robustness of the classifier and revealing potential targets for further therapeutic investigation. We anticipate that our resource will build up trust in machine learning in clinical settings, foster biomarker discovery and development of compact point-of-care assays, and enable further epigenome research of brain tumors. Our interpretable framework is accessible to the research community via an interactive web application (
https://hovestadtlab.shinyapps.io/shinyMNP/
).
AI-guided epigenetic classification is integral for accurate brain tumour diagnosis. Here, the authors introduce an interpretable framework to explain the AI process, revealing biological insights and potential therapeutic targets.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
