A team of investigators from Dana-Farber Cancer Institute, The Broad Institute of MIT and Harvard, Google, and Columbia University have created an artificial intelligence model that can predict which genes are expressed in any type of human cell.
Dana-Farber Cancer InstituteJan 31 2025 Summary: The model, called EpiBERT, was inspired by BERT, a deep learning model designed to understand and generate human-like language.
EpiBERT was trained on data from hundreds of human cell types in multiple phases. It was fed the genomic sequence, which is 3 billion base pairs long, along with maps of chromatin accessibility that inform which of these sequences are unwound from the chromosome and read by the cell. The model was first trained to learn the relationship between DNA sequence and chromatin accessibility across large chunks of the genome in a specific cell type.
Significance: Every cell in the body has the same genome sequence, so the difference between two types of cells is not the genes in the genome, but which genes are turned on, when, and how much. Approximately 20% of the genome codes for regulatory elements determine which genes are turned on, but very little is known about where those codes are in the genome, what their instructions look like, or how mutations affect function in a cell.
Funding: The Broad Institute, the Novo Nordisk Foundation, the National Genome Research Institute, the Sharf Green Cancer Research Fund, the Richard and Nancy Lubin Family, and the American Cancer Society. Tensor Processing Unit access and support provided by Google.Journal reference:Javed, N., et al. . A multi-modal transformer for cell type-agnostic regulatory predictions. Cell Genomics. doi.org/10.1016/j.xgen.2025.100762.
Language Cancer Cell Chromatin Genes Genome Research
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