6eg2

Publication Abstract from PubMed

SMARCA2 (SWI/SNF Related Matrix Associated Actin Dependent Regulator Of Chromatin Subfamily A Member 2), also known as BRM (Brahma homolog) is a Snf2-family DNA-dependent ATPase. BRM, and its close homolog Brahma related gene 1 (BRG1), also known as SMARCA4, are mutually exclusive ATPase members of the large ATP-dependent SWI/SNF chromatin remodeling complexes involved in transcriptional regulation of gene expression. No small molecules modulating SWI/SNF chromatin remodeling activity via inhibition of its ATPase activity have been reported, an important goal given the well-established dependence of BRG1-deficient cancers on BRM. Here, we describe allosteric dual BRM and BRG1 inhibitors that downregulate BRM-dependent gene expression and show anti-proliferative activity in a BRG1-mutant lung tumor xenograft model upon oral administration. These compounds represent useful tools for understanding the functions of BRM in BRG1 loss-of-function settings, and should enable probing the role of SWI/SNF function more broadly in different cancer contexts and other diseases.

Discovery of Orally Active Inhibitors of Brahma Homolog (BRM)/ SWI/SNF Related Matrix Associated Actin Dependent Regulator Of Chromatin Subfamily A Member 2 (SMARCA2) ATPase Activity for the Treatment of Brahma Related Gene 1 (BRG1)/ SMARCA4-Mutant Cancers.,Papillon JPN, Nakajima K, Adair CD, Hempel J, Jouk AO, Karki R, Mathieu S, Moebitz H, Ntaganda R, Smith T, Visser M, Hill SE, Kellermann Hurtado F, Chenail G, Bhang HC, Bric A, Xiang K, Bushold G, Gilbert T, Vattay A, Dooley J, Costa EA, Park I, Li A, Farley D, Lounkine E, Yue QK, Xie X, Zhu X, Kulathila R, King D, Hu T, Vulic K, Cantwell J, Luu C, Jagani Z J Med Chem. 2018 Oct 19. doi: 10.1021/acs.jmedchem.8b01318. PMID:30339381^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.