Identification of Novel HSP90α/β Isoform Selective Inhibitors Using Structure-Based Drug Design. Demonstration of Potential Utility in Treating CNS Disorders such as Huntington’s Disease
作者:Justin T. Ernst、Timothy Neubert、Michael Liu、Samuel Sperry、Harmon Zuccola、Amy Turnbull、Beth Fleck、William Kargo、Lisa Woody、Peggy Chiang、Dao Tran、Weichao Chen、Phillip Snyder、Timothy Alcacio、Azin Nezami、James Reynolds、Khisal Alvi、Lance Goulet、Dean Stamos
DOI:10.1021/jm500042s
日期:2014.4.24
toxicity. Improved tolerability profiles may enable the use of HSP90α/β selective inhibitors in treating chronic neurodegenerative indications such as Huntington’s disease (HD). A potent, selective, orally available HSP90α/β inhibitor was identified (compound 31) that crosses the blood–brain barrier. Compound 31 demonstrated proof of concept by successfully reducing brain Htt levels following oral dosing
基于结构的药物设计策略用于优化HSP90α/β抑制剂的新型苯并内酰胺系列,以实现相对于HSP90内质网和线粒体同工型(分别为GRP94和TRAP1)的> 1000倍的选择性。发现选择性HSP90α/β抑制剂与pan-HSP90抑制剂在促进体外突变亨廷顿蛋白(mHtt)清除方面具有同等作用,但具有较小的细胞毒性。改善的耐受性可以使HSP90α/β选择性抑制剂可用于治疗慢性神经退行性疾病,例如亨廷顿舞蹈病(HD)。鉴定出了一种有效的,选择性的,口服的HSP90α/β抑制剂(化合物31),它能穿过血脑屏障。化合物31 通过在大鼠口服后成功降低大脑Htt水平,证明了这一概念的证明。