Semisynthetic neoboutomellerone derivatives as ubiquitin-proteasome pathway inhibitors
作者:Joséphine Beck、Yves Guminski、Christophe Long、Laurence Marcourt、Fadila Derguini、Fabien Plisson、Antonio Grondin、Isabelle Vandenberghe、Stéphane Vispé、Viviane Brel、Yannick Aussagues、Frédéric Ausseil、Paola B. Arimondo、Georges Massiot、François Sautel、Frédéric Cantagrel
DOI:10.1016/j.bmc.2011.11.066
日期:2012.1
The interesting pharmacological properties of neoboutomellerones 1 and 2 were the basis for the assembly of a small library of analogues consisting of natural products isolated from the plant Neoboutonia melleri and of semisynthetic derivatives. As the two enone systems (C23-C24a and C1-C3) and the two hydroxyls groups (C22 and C26) of neoboutomellerones are required for activity, modifications were focused on these functional groups. Biological evaluation by using a cellular assay for proteasome activity provided clues regarding the mechanism of action of these natural products and synthetic derivatives. Certain neoboutomellerone derivatives inhibited the proliferation of human WM-266-4 melanoma tumor cells at submicromolar concentration and warrant evaluation as anticancer agents. (C) 2011 Elsevier Ltd. All rights reserved.