2-Phenylquinoline S. aureus NorA Efflux Pump Inhibitors: Evaluation of the Importance of Methoxy Group Introduction
摘要:
Antimicrobial resistance (AMR) represents a hot topic in drug discovery. Besides the identification of new antibiotics, the use of nonantibiotic molecules to block resistance mechanisms is a powerful alternative. Bacterial efflux pumps exert an early step in AMR development by allowing bacteria to grow at subinhibitorial drug concentrations. Thus, efflux pump inhibitors (EPIs) offer a great opportunity to fight AMR Given our experience in developing Staphylococcus aureus NorA EPIs, in this work, starting from the 2-phenylquinoline hit 1, we planned the introduction of methoxy groups on the basis of their presence in known NorA EPIs. Among the 35 different synthesized derivatives, compounds 3b and 7d exhibited the best NorA inhibition activity by restoring at very low concentrations ciprofloxacin MICs against resistant S. aureus strains. Interestingly, both compounds displayed EPI activities at nontoxic concentrations for human cells as well as highlighted promising results by preliminary pharmacokinetic studies.
2-Phenylquinoline S. aureus NorA Efflux Pump Inhibitors: Evaluation of the Importance of Methoxy Group Introduction
摘要:
Antimicrobial resistance (AMR) represents a hot topic in drug discovery. Besides the identification of new antibiotics, the use of nonantibiotic molecules to block resistance mechanisms is a powerful alternative. Bacterial efflux pumps exert an early step in AMR development by allowing bacteria to grow at subinhibitorial drug concentrations. Thus, efflux pump inhibitors (EPIs) offer a great opportunity to fight AMR Given our experience in developing Staphylococcus aureus NorA EPIs, in this work, starting from the 2-phenylquinoline hit 1, we planned the introduction of methoxy groups on the basis of their presence in known NorA EPIs. Among the 35 different synthesized derivatives, compounds 3b and 7d exhibited the best NorA inhibition activity by restoring at very low concentrations ciprofloxacin MICs against resistant S. aureus strains. Interestingly, both compounds displayed EPI activities at nontoxic concentrations for human cells as well as highlighted promising results by preliminary pharmacokinetic studies.
NEW METHOD FOR IDENTIFYING COMPOUNDS USEFUL FOR TREATING AND/OR PREVENTING DISEASES ASSOCIATED WITH BONE LOSS
申请人:Centre National de la Recherche Scientifique
(CNRS)
公开号:EP2331967B1
公开(公告)日:2015-11-04
Compounds for treating and/or preventing diseases associated with bone loss
申请人:CENTRE NATIONAL DE
LA RECHERCHE SCIENTIFIQUE -CNRS-
公开号:EP2716285B1
公开(公告)日:2016-04-27
JP2012500393A
申请人:——
公开号:JP2012500393A
公开(公告)日:2012-01-05
METHOD FOR IDENTIFYING COMPOUNDS USEFUL FOR TREATING AND/OR PREVENTING DISEASE-ASSOCIATED BONE LOSS
申请人:Blangy Anne
公开号:US20110212974A1
公开(公告)日:2011-09-01
The present invention concerns a method for identifying a compound which inhibits the activation of RAC GTPase by DOCK5 protein comprising the steps of (i) coexpressing the DOCK5 and the RAC proteins in a cell, wherein said DOCK5 protein induces the conversion of inactive RAC, which inactive RAC is bound to GDP, to active RAC, which active RAC is bound to GTP, (ii) contacting or not said cell with said compound, (iii) determining the conversion of inactive RAC to active RAC in the presence or absence of said compound, and (iv) selecting the compound inhibiting the conversion of inactive RAC to active RAC. Said compound is useful for treating disease-associated bone loss.