RVX-208, an inhibitor of BET transcriptional regulators with selectivity for the second bromodomain. Picaud, S., Wells, C., Felletar, I., Brotherton, D., Martin, S., Savitsky, P., Diez-Dacal, B., Philpott, M., Bountra, C., Lingard, H., Fedorov, O., Muller, S., Brennan, P., E., Knapp, S., & Filippakopoulos, P. Proceedings of the National Academy of Sciences, 110(49):19754-19759, 2013.
Paper
Website doi abstract bibtex Bromodomains have emerged as attractive candidates for the development of inhibitors targeting gene transcription. Inhibitors of the bromo and extraterminal (BET) family recently showed promising activity in diverse disease models. However, the pleiotropic nature of BET proteins regulating tissue-specific transcription has raised safety concerns and suggested that attempts should be made for domain-specific targeting. Here, we report that RVX-208, a compound currently in phase II clinical trials, is a BET bromodomain inhibitor specific for second bromodomains (BD2s). Cocrystal structures revealed binding modes of RVX-208 and its synthetic precursor, and fluorescent recovery after photobleaching demonstrated that RVX-208 displaces BET proteins from chromatin. However, gene-expression data showed that BD2 inhibition only modestly affects BET-dependent gene transcription. Our data demonstrate the feasibility of specific targeting within the BET family resulting in different transcriptional outcomes and highlight the importance of BD1 in transcriptional regulation.
@article{
title = {RVX-208, an inhibitor of BET transcriptional regulators with selectivity for the second bromodomain},
type = {article},
year = {2013},
pages = {19754-19759},
volume = {110},
websites = {http://www.pnas.org/cgi/doi/10.1073/pnas.1310658110},
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last_modified = {2018-07-09T12:39:49.776Z},
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citation_key = {Picaud2013c},
source_type = {Journal Article},
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abstract = {Bromodomains have emerged as attractive candidates for the development of inhibitors targeting gene transcription. Inhibitors of the bromo and extraterminal (BET) family recently showed promising activity in diverse disease models. However, the pleiotropic nature of BET proteins regulating tissue-specific transcription has raised safety concerns and suggested that attempts should be made for domain-specific targeting. Here, we report that RVX-208, a compound currently in phase II clinical trials, is a BET bromodomain inhibitor specific for second bromodomains (BD2s). Cocrystal structures revealed binding modes of RVX-208 and its synthetic precursor, and fluorescent recovery after photobleaching demonstrated that RVX-208 displaces BET proteins from chromatin. However, gene-expression data showed that BD2 inhibition only modestly affects BET-dependent gene transcription. Our data demonstrate the feasibility of specific targeting within the BET family resulting in different transcriptional outcomes and highlight the importance of BD1 in transcriptional regulation.},
bibtype = {article},
author = {Picaud, S. and Wells, C. and Felletar, I. and Brotherton, D. and Martin, S. and Savitsky, P. and Diez-Dacal, B. and Philpott, M. and Bountra, C. and Lingard, H. and Fedorov, O. and Muller, S. and Brennan, P. E. and Knapp, S. and Filippakopoulos, P.},
doi = {10.1073/pnas.1310658110},
journal = {Proceedings of the National Academy of Sciences},
number = {49}
}
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