Towards small molecule inhibitors of mono-ADP-ribosyltransferases
作者:Torun Ekblad、Anders E.G. Lindgren、C. David Andersson、Rémi Caraballo、Ann-Gerd Thorsell、Tobias Karlberg、Sara Spjut、Anna Linusson、Herwig Schüler、Mikael Elofsson
DOI:10.1016/j.ejmech.2015.03.067
日期:2015.5
Protein ADP-ribosylation is a post-translational modification involved in DNA repair, protein degradation, transcription regulation, and epigenetic events. Intracellular ADP-ribosylation is catalyzed predominantly by ADP-ribosyltransferases with diphtheria toxin homology (ARTDs). The most prominent member of the ARTD family, poly(ADP-ribose) polymerase-1 (ARTD1/PARP1) has been a target for cancer drug development for decades. Current PARP inhibitors are generally non-selective, and inhibit the mono-ADP-ribosyltransferases with low potency. Here we describe the synthesis of acylated amino benzamides and screening against the mono-ADP-ribosyltransferases ARTD7/PARP15, ARTD8/PARP14, ARTD10/PARP10, and the poly-ADP-ribosyltransferase ARTD1/PARP1. The most potent compound inhibits ARTD10 with sub-micromolar IC50. (C) 2015 The Authors. Published by Elsevier Masson SAS.
[EN] IMPLANTABLE TISSUE COMPOSITIONS AND METHOD<br/>[FR] COMPOSITIONS TISSULAIRES IMPLANTABLES ET PROCEDE
申请人:PATHAK CHANDRASHEKHAR P
公开号:WO2006026325A3
公开(公告)日:2009-04-09
On-Bead Screening of a Combinatorial Fumaric Acid Derived Peptide Library Yields Antiplasmodial Cysteine Protease Inhibitors with Unusual Peptide Sequences
A new class of cysteine protease inhibitors based oil fumaric acid derived oligopeptides was successfully identified from a high-throughput screening of a solid-phase bound combinatorial library. As target enzymes falcipain and rhodesain were used, which play important roles in the life cycles of the parasites which cause malaria (Plasmodium falciparum) and African sleeping sickness (Trypanosoma brucei rhodesiense). The best inhibitors with unusual amino acid sequences not reported before for this type of enzyme were also fully analyzed in detail in solution. K-i values in the lower micromolar and even nanomolar region were found. Some inhibitors are even active against plasmodia and show good selectivity relative to other enzymes. Also the mechanism of action was studied and could be shown to be irreversible inhibition.