Application of Off-Rate Screening in the Identification of Novel Pan-Isoform Inhibitors of Pyruvate Dehydrogenase Kinase
                                
                                    
                                        作者:Paul A. Brough、Lisa Baker、Simon Bedford、Kirsten Brown、Seema Chavda、Victoria Chell、Jalanie D’Alessandro、Nicholas G. M. Davies、Ben Davis、Loic Le Strat、Alba T. Macias、Daniel Maddox、Patrick C. Mahon、Andrew J. Massey、Natalia Matassova、Sean McKenna、Johannes W. G. Meissner、Jonathan D. Moore、James B. Murray、Christopher J. Northfield、Charles Parry、Rachel Parsons、Stephen D. Roughley、Terry Shaw、Heather Simmonite、Stephen Stokes、Allan Surgenor、Emma Stefaniak、Alan Robertson、Yikang Wang、Paul Webb、Neil Whitehead、Mike Wood                                    
                                    
                                        DOI:10.1021/acs.jmedchem.6b01478
                                    
                                    
                                        日期:2017.3.23
                                    
                                    Libraries of nonpurified resorcinol amide derivatives were screened by surface plasmon resonance (SPR) to determine the binding dissociation constant (off-rate, k(d)) for compounds binding to the pyruvate dehydrogenase kinase (PDHK) enzyme. Parallel off-rate measurements against HSP90 and application of structure-based drug design enabled rapid hit to lead progression in a program to identify pan-isoform ATP-competitive inhibitors of PDHK. Lead optimization identified selective sub-100-nM inhibitors of the enzyme which significantly reduced phosphorylation of the E1 alpha subunit in the PC3 cancer cell line in vitro.