Generation of ‘Unnatural Natural Product’ library and identification of a small molecule inhibitor of XIAP
摘要:
Natural products have been utilized for drug discovery. To increase the source diversity, we generated a new chemical library consisting of chemically modified microbial metabolites termed 'Unnatural Natural Products' by chemical conversion of microbial metabolites in crude broth extracts followed by purification of reaction products with the LC-photo diode array-MS system. Using this library, we discovered an XIAP inhibitor, C38OX6, which restored XIAP-suppressed enzymatic activity of caspase-3 in vitro. Furthermore, C38OX6 sensitized cancer cells to anticancer drugs, whereas the unconverted natural product did not. These findings suggest that our library could be a useful source for drug seeds. (C) 2011 Elsevier Ltd. All rights reserved.
Generation of ‘Unnatural Natural Product’ library and identification of a small molecule inhibitor of XIAP
作者:Tatsuro Kawamura、Kohei Matsubara、Hitomi Otaka、Etsu Tashiro、Kazutoshi Shindo、Ryo C. Yanagita、Kazuhiro Irie、Masaya Imoto
DOI:10.1016/j.bmc.2011.05.009
日期:2011.7
Natural products have been utilized for drug discovery. To increase the source diversity, we generated a new chemical library consisting of chemically modified microbial metabolites termed 'Unnatural Natural Products' by chemical conversion of microbial metabolites in crude broth extracts followed by purification of reaction products with the LC-photo diode array-MS system. Using this library, we discovered an XIAP inhibitor, C38OX6, which restored XIAP-suppressed enzymatic activity of caspase-3 in vitro. Furthermore, C38OX6 sensitized cancer cells to anticancer drugs, whereas the unconverted natural product did not. These findings suggest that our library could be a useful source for drug seeds. (C) 2011 Elsevier Ltd. All rights reserved.