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Structure-Based Design of an in Vivo Active Selective BRD9 Inhibitor

Structure-Based Design of an in Vivo Active Selective BRD9 Inhibitor

Laetitia J Martin, Manfred Koegl, Gerd Bader, Xiao-Ling Cockcroft, Oleg Fedorov, Dennis Fiegen, Thomas Gerstberger, Marco H Hofmann, Anja F Hohmann, Dirk Kessler, Stefan Knapp, Petr Knesl, Stefan Kornigg, etc.

J Med Chem. 2016 May 26;59(10):4462-75.

PMID: 26914985

Abstract:

Components of the chromatin remodelling switch/sucrose nonfermentable (SWI/SNF) complex are recurrently mutated in tumors, suggesting that altering the activity of the complex plays a role in oncogenesis. However, the role that the individual subunits play in this process is not clear. We set out to develop an inhibitor compound targeting the bromodomain of BRD9 in order to evaluate its function within the SWI/SNF complex. Here, we present the discovery and development of a potent and selective BRD9 bromodomain inhibitor series based on a new pyridinone-like scaffold. Crystallographic information on the inhibitors bound to BRD9 guided their development with respect to potency for BRD9 and selectivity against BRD4. These compounds modulate BRD9 bromodomain cellular function and display antitumor activity in an AML xenograft model. Two chemical probes, BI-7273 (1) and BI-9564 (2), were identified that should prove to be useful in further exploring BRD9 bromodomain biology in both in vitro and in vivo settings.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1883429228	BI-9564		1883429-22-8	Price

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