A Small-Molecule Inhibitor of Prion Replication and Mutant Prion Protein Toxicity
作者:Tania Massignan、Valeria Sangiovanni、Silvia Biggi、Claudia Stincardini、Saioa R. Elezgarai、Giulia Maietta、Ivan A. Andreev、Nina K. Ratmanova、Dmitry S. Belov、Evgeny R. Lukyanenko、Grigory M. Belov、Maria Letizia Barreca、Andrea Altieri、Alexander V. Kurkin、Emiliano Biasini
DOI:10.1002/cmdc.201700302
日期:2017.8.22
Into the fold: Prion diseases are neurodegenerative disorders characterized by the accumulation in the brain of a self-replicating, misfolded isoform (PrPSc ) of the cellular prionprotein (PrPC ). No therapies are available for these pathologies. We capitalized on previously described cell-based assays to screen a library of small molecules, and identified 55, a compound capable of counteracting both
Discovery of the 2-phenyl-4,5,6,7-Tetrahydro-1H-indole as a novel anti-hepatitis C virus targeting scaffold
作者:Ivan A. Andreev、Dinesh Manvar、Maria Letizia Barreca、Dmitry S. Belov、Amartya Basu、Noreena L. Sweeney、Nina K. Ratmanova、Evgeny R. Lukyanenko、Giuseppe Manfroni、Violetta Cecchetti、David N. Frick、Andrea Altieri、Neerja Kaushik-Basu、Alexander V. Kurkin
DOI:10.1016/j.ejmech.2015.04.022
日期:2015.5
Although all-oral direct-acting antiviral (DAA) therapy for hepatitis C virus (HCV) treatment is now a reality, today's HCV drugs are expensive, and more affordable drugs are still urgently needed. In this work, we report the identification of the 2-phenyl-4,5,6,7-Tetrahydro-1H-indole chemical scaffold that inhibits cellular replication of HCV genotype 1b and 2a subgenomic replicons. The anti-HCV genotype lb and 2a profiling and effects on cell viability of a selected representative set of derivatives as well as their chemical synthesis are described herein. The most potent compound 39 displayed EC50 values of 7.9 and 2.6 mu M in genotype lb and 2a, respectively. Biochemical assays showed that derivative 39 had no effect on HCV NS5B polymerase, NS3 helicase, IRES mediated translation and selected host factors. Thus, future work will involve both the chemical optimization and target identification of 2-phenyl-4,5,6,7-Tetrahydro-1H-indoles as new anti-HCV agents. (C) 2015 Elsevier Masson SAS. All rights reserved.