Abstract
As bacterial resistance to antibiotics continues to threaten modern healthcare worldwide, the need for new approaches that control bacterial infections becomes evermore urgent. Membrane-active compounds (MACs) are currently gaining interest for their potential to address various antibiotic resistance challenges. Since MACs are able to target multiple vital bacterial functions simultaneously, they may have the advantage of fighting the infection while avoiding many of the known resistance mechanisms. This chapter reviews current data regarding the attempts to use oligomers of acylated cations (OACs) as a platform for optimizing the hydrophobic/cationic balance required for selective nonspecific membrane interactions of MACs, under in vitro and in vivo conditions. With the perspective gained over nearly a decade after their conception and after a few dozen investigations involving several hundreds of analogs, we describe the properties of a few representative lysyl-based OAC (OAK) sequences. These sequences reflect the OAC concept evolution from the original focus on bactericidal MACs that later shifted onto bacteriostatic derivatives and presently concentrates on seemingly inactive analogs that nonetheless improve the control of bacterial infections. Collectively, the current data appear to substantiate the potential of OAC-based MACs as a valuable resource for therapeutic antibacterial development, including for systemic applications.
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This work was supported by the Israel Science Foundation (grant 909/12).
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Mor, A. (2016). Engineered OAKs Against Antibiotic Resistance and for Bacterial Detection. In: Epand, R. (eds) Host Defense Peptides and Their Potential as Therapeutic Agents. Springer, Cham. https://doi.org/10.1007/978-3-319-32949-9_8
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DOI: https://doi.org/10.1007/978-3-319-32949-9_8
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