Design of membrane targeting tobramycin-based cationic amphiphiles with reduced hemolytic activity
作者:Ido M. Herzog、Mark Feldman、Anat Eldar-Boock、Ronit Satchi-Fainaro、Micha Fridman
DOI:10.1039/c2md20162c
日期:——
Tobramycin-based cationicamphiphiles differing in the chemical bond linking their hydrophobic and hydrophilic parts were synthesized and biologically evaluated. Several compounds demonstrated potent antimicrobial activities compared to the parent drug. One analogue exhibited a significant reduction in red blood cells hemolysis, demonstrating that it is possible to maintain the antimicrobial potency
6′′-Thioether Tobramycin Analogues: Towards Selective Targeting of Bacterial Membranes
作者:Ido M. Herzog、Keith D. Green、Yifat Berkov-Zrihen、Mark Feldman、Roee R. Vidavski、Anat Eldar-Boock、Ronit Satchi-Fainaro、Avigdor Eldar、Sylvie Garneau-Tsodikova、Micha Fridman
DOI:10.1002/anie.201200761
日期:2012.6.4
Amphiphilic tobramycinanalogues with potent antibacterial activity against tobramycin‐resistant bacteria were synthesized. Most analogues were found to be less prone to deactivation by aminoglycoside‐modifying enzymes than tobramycin. These compounds target the bacterial membrane rather than the ribosome (see picture). The lipophilic residue of these analogues is key to their antibacterial potency
Di-<i>N</i>-Methylation of Anti-Gram-Positive Aminoglycoside-Derived Membrane Disruptors Improves Antimicrobial Potency and Broadens Spectrum to Gram-Negative Bacteria
作者:Raphael I. Benhamou、Pazit Shaul、Ido M. Herzog、Micha Fridman
DOI:10.1002/anie.201506814
日期:2015.11.9
activity and a broader antimicrobialspectrum. While the parent compounds were either modestly active or inactive against Gram‐negative pathogens, the corresponding di‐N‐methylated compounds were potent against the tested Gram‐negative as well as Gram‐positive bacterial strains. The reported modification offers a robust strategy for the development of broad‐spectrummembrane‐disrupting antibiotics for topical