Authors
Bjoern Chapuy, Michael R McKeown, Charles Y Lin, Stefano Monti, Margaretha GM Roemer, Jun Qi, Peter B Rahl, Heather H Sun, Kelly T Yeda, John G Doench, Elaine Reichert, Andrew L Kung, Scott J Rodig, Richard A Young, Margaret A Shipp, James E Bradner
Publication date
2013/12/9
Journal
Cancer cell
Volume
24
Issue
6
Pages
777-790
Publisher
Elsevier
Description
Diffuse large B cell lymphoma (DLBCL) is a biologically heterogeneous and clinically aggressive disease. Here, we explore the role of bromodomain and extra-terminal domain (BET) proteins in DLBCL, using integrative chemical genetics and functional epigenomics. We observe highly asymmetric loading of bromodomain 4 (BRD4) at enhancers, with approximately 33% of all BRD4 localizing to enhancers at 1.6% of occupied genes. These super-enhancers prove particularly sensitive to bromodomain inhibition, explaining the selective effect of BET inhibitors on oncogenic and lineage-specific transcriptional circuits. Functional study of genes marked by super-enhancers identifies DLBCLs dependent on OCA-B and suggests a strategy for discovering unrecognized cancer dependencies. Translational studies performed on a comprehensive panel of DLBCLs establish a therapeutic rationale for evaluating BET …
Scholar articles
B Chapuy, MR McKeown, CY Lin, S Monti… - Cancer cell, 2013