Mapping the chemical chromatin reactivation landscape identifies BRD4-TAF1 cross-talk

Bromodomain-containing proteins of the BET family recognize histone lysine acetylation and mediate transcriptional activation of target genes such as the MYC oncogene. Pharmacological inhibitors of BET domains promise therapeutic benefits in a variety of cancers. We performed a high-diversity chemic...

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Main Authors: Huber, K, Knapp, S, Fedorov, O
Format: Journal article
Published: Nature Publishing Group 2016
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author Huber, K
Knapp, S
Fedorov, O
author_facet Huber, K
Knapp, S
Fedorov, O
author_sort Huber, K
collection OXFORD
description Bromodomain-containing proteins of the BET family recognize histone lysine acetylation and mediate transcriptional activation of target genes such as the MYC oncogene. Pharmacological inhibitors of BET domains promise therapeutic benefits in a variety of cancers. We performed a high-diversity chemical compound screen for agents capable of modulating BRD4-dependent heterochromatization of a generic reporter in human cells. In addition to known and new compounds targeting BRD4, we identified small molecules that mimic BRD4 inhibition without direct engagement. One such compound was a potent inhibitor of the second bromodomain of TAF1. Using this inhibitor, we discovered that TAF1 synergizes with BRD4 to control proliferation of cancer cells, making TAF1 an attractive epigenetic target in cancers driven by MYC.
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spelling oxford-uuid:0a004f44-4a54-4260-ae0b-98bef7c97cd92022-03-26T09:21:26ZMapping the chemical chromatin reactivation landscape identifies BRD4-TAF1 cross-talkJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0a004f44-4a54-4260-ae0b-98bef7c97cd9Symplectic Elements at OxfordNature Publishing Group2016Huber, KKnapp, SFedorov, OBromodomain-containing proteins of the BET family recognize histone lysine acetylation and mediate transcriptional activation of target genes such as the MYC oncogene. Pharmacological inhibitors of BET domains promise therapeutic benefits in a variety of cancers. We performed a high-diversity chemical compound screen for agents capable of modulating BRD4-dependent heterochromatization of a generic reporter in human cells. In addition to known and new compounds targeting BRD4, we identified small molecules that mimic BRD4 inhibition without direct engagement. One such compound was a potent inhibitor of the second bromodomain of TAF1. Using this inhibitor, we discovered that TAF1 synergizes with BRD4 to control proliferation of cancer cells, making TAF1 an attractive epigenetic target in cancers driven by MYC.
spellingShingle Huber, K
Knapp, S
Fedorov, O
Mapping the chemical chromatin reactivation landscape identifies BRD4-TAF1 cross-talk
title Mapping the chemical chromatin reactivation landscape identifies BRD4-TAF1 cross-talk
title_full Mapping the chemical chromatin reactivation landscape identifies BRD4-TAF1 cross-talk
title_fullStr Mapping the chemical chromatin reactivation landscape identifies BRD4-TAF1 cross-talk
title_full_unstemmed Mapping the chemical chromatin reactivation landscape identifies BRD4-TAF1 cross-talk
title_short Mapping the chemical chromatin reactivation landscape identifies BRD4-TAF1 cross-talk
title_sort mapping the chemical chromatin reactivation landscape identifies brd4 taf1 cross talk
work_keys_str_mv AT huberk mappingthechemicalchromatinreactivationlandscapeidentifiesbrd4taf1crosstalk
AT knapps mappingthechemicalchromatinreactivationlandscapeidentifiesbrd4taf1crosstalk
AT fedorovo mappingthechemicalchromatinreactivationlandscapeidentifiesbrd4taf1crosstalk