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Chapuy, Bjoern; McKeown, Michael R.; Lin, Charles Y.; Monti, Stefano; Roemer, Margaretha G.M.; Qi, Jun; Rahl, Peter B.; Sun, Heather H.; Yeda, Kelly T.; Doench, John G.; Reichert, Elaine; Kung, Andrew L.; Rodig, Scott J.; Young, Richard A.; Shipp, Margaret A.; Bradner, James E.
Cancer cell, 12/2013, Letnik: 24, Številka: 6Journal Article
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 inhibitors in this disease. •BET inhibition exhibits antitumor efficacy in vitro and in vivo•BRD4 localizes in an asymmetric manner to massively overloaded enhancer regions•Genes with adjacent BRD4-loaded super-enhancers are sensitive to BET inhibition•Cancer dependencies are found among super-enhancer-marked genes
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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