Potent memapsin 2 (β-secretase) inhibitors: Design, synthesis, protein-ligand X-ray structure, and in vivo evaluation
作者:Arun K. Ghosh、Nagaswamy Kumaragurubaran、Lin Hong、Sarang Kulkarni、Xiaoming Xu、Heather B. Miller、Dandepally Srinivasa Reddy、Vajira Weerasena、Robert Turner、Wanpin Chang、Gerald Koelsch、Jordan Tang
DOI:10.1016/j.bmcl.2007.12.028
日期:2008.2
Structure-based design, synthesis, and biological evaluation of a series of peptidomimetic beta-secretase inhibitors incorporating hydroxyethylamine isosteres are described. We have identified inhibitor 24 which has shown exceedingly potent activity in memapsin 2 enzyme inhibitory (K(i) 1.8 nM) and cellular (IC(50)=1 nM in Chinese hamster ovary cells) assays. Inhibitor 24 has also shown very impressive
描述了基于结构的设计,合成和一系列掺入羟乙胺等排体的拟肽β-分泌酶抑制剂的生物学评估。我们已经确定了抑制剂24,该抑制剂在memapsin 2酶抑制(K(i)1.8 nM)和细胞(IC(50)= 1 nM在中国仓鼠卵巢细胞)测定中显示出极强的活性。抑制剂24在转基因小鼠中还显示出非常令人印象深刻的体内特性(血浆A beta降低高达65%)。Memapsin 2的蛋白质-配体复合物的X射线结构揭示了memapsin 2活性位点中的关键相互作用。