[EN] BENZOTHIAZOLE COMPOUNDS<br/>[FR] COMPOSÉS DE BENZOTHIAZOLE
申请人:INST MEDICAL W & E HALL
公开号:WO2009039553A1
公开(公告)日:2009-04-02
The present invention relates to benzothiazole compounds that mimic the activity of BH3 only proteins and are capable of binding to and neutralizing pro survival Bcl 2 proteins. The invention also relates to the use of such compounds in the regulation of cell death or cell survival and the treatment and/or prophylaxis of diseases or conditions associated with the deregulation of cell death or cell survival.
Discovery of Potent and Selective Benzothiazole Hydrazone Inhibitors of Bcl-X<sub>L</sub>
作者:Brad E. Sleebs、Wilhemus J. A. Kersten、Sanji Kulasegaram、George Nikolakopoulos、Effie Hatzis、Rebecca M. Moss、John P. Parisot、Hong Yang、Peter E. Czabotar、W. Douglas Fairlie、Erinna F. Lee、Jerry M. Adams、Lin Chen、Mark F. van Delft、Kym N. Lowes、Andrew Wei、David C.S. Huang、Peter M. Colman、Ian P. Street、Jonathan B. Baell、Keith Watson、Guillaume Lessene
DOI:10.1021/jm400556w
日期:2013.7.11
Developing potent molecules that inhibit Bcl-2 family mediated apoptosis affords opportunities to treat cancers via reactivation of the cell death machinery. We describe the hit-to-lead development of selective Bcl-X-L inhibitors originating from a high-throughput screening campaign. Small structural changes to the hit compound increased binding affinity more than 300-fold (to IC50 < 20 nM). This molecular series exhibits drug-like characteristics, low molecular weights (M-w < 450) and unprecedented selectivity for Bcl-X-L. Surface plasmon resonance experiments afford strong evidence of binding affinity within the hydrophobic groove of Bcl-X-L. Biological experiments using engineered Mcl-1 deficient mouse embryonic fibroblasts (MEFs, reliant only on Bcl-X-L, for survival) and Bax/Bak deficient MEFs (insensitive to selective activation of Bcl-2-driven apoptosis) support a mechanism-based induction of apoptosis. This manuscript describes the first series of selective small-molecule inhibitors of Bcl-X-L and provides promising leads for the development of efficacious therapeutics against solid tumors and chemoresistant cancer cell lines.