Discovery of potent and selective PARP-1 and PARP-2 inhibitors: SBDD analysis via a combination of X-ray structural study and homology modeling
作者:Junya Ishida、Hirofumi Yamamoto、Yoshiyuki Kido、Kazunori Kamijo、Kenji Murano、Hiroshi Miyake、Mitsuru Ohkubo、Takayoshi Kinoshita、Masaichi Warizaya、Akinori Iwashita、Kayoko Mihara、Nobuya Matsuoka、Kouji Hattori
DOI:10.1016/j.bmc.2005.09.061
日期:2006.3
We disclose herein our efforts aimed at discovery of selective PARP-1 and PARP-2 inhibitors. We have recently discovered several novel classes of quinazolinones, quinazolidinones, and quinoxalines as potent PARP-1 inhibitors, which may represent attractive therapeutic candidates. In PARP enzyme assays using recombinant PARP-1 and PARP-2, the quinazolinone derivatives displayed relatively high selectivity for PARP-1 and quinoxaline derivatives showed superior selectivity for PARP-2, and the quinazolidinone derivatives did not have selectivity for PARP-1/2. Structure-based drug design analysis via a combination of X-ray structural study utilizing the complexes of inhibitors and human PARP-1 catalytic domain, and homology modeling using murine PARP-2 suggested distinct interactions of inhibitors with PARP-1 and PARP-2. These findings provide a new structural framework for the design of selective inhibitors for PARP-1 and PARP-2. (c) 2005 Elsevier Ltd. All rights reserved.