Journal
CURRENT OPINION IN BIOTECHNOLOGY
Volume 68, Issue -, Pages 15-22Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.copbio.2020.08.014
Keywords
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Funding
- Research Foundation Flanders (FWO) [G066919N]
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Phage lysins are advanced antibacterials that degrade peptidoglycan, now being developed as effective treatment against Gram-negative pathogens. Three research approaches have been explored: lysins with a positively charged C-terminus for disrupting outer membranes, physical/chemical methods for membrane integrity, and protein engineering for membrane permeability.
Phage lysins are one of the most advanced classes of antibacterials under clinical evaluation and have a new mode of action based on peptidoglycan degradation. Lysins were initially excluded from use against Gram-negative pathogens because of their impermeable outer membrane, but are now increasingly developed as effective antibacterials against these critical priority pathogens. Generally, three routes of investigation have been recently explored and advanced to different extents, including the use of lysins that possess intrinsic activity due to a positively charged C-terminus that destabilizes the outer membrane, the use of physical or chemical means to disrupt the outer membrane integrity and protein engineering to equip the lysin with the necessary tools to overcome the outer membrane.
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