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Lysin Therapy for Staphylococcus aureus and Other Bacterial Pathogens
1Laboratory of Bacterial Pathogenesis and Immunology, Rockefeller University, 1230 York Avenue, New York, NY, 10021, USA. vaf@rockefeller.edu.
Current Topics in Microbiology and Immunology
|January 6, 2016
Summary
Lysins, novel anti-infectives from bacteriophages, rapidly kill bacteria by degrading their cell walls. These enzymes offer a promising alternative to antibiotics, especially against resistant strains.
Area of Science:
- Microbiology
- Biochemistry
- Infectious Diseases
Background:
- Bacteriophage (phage) lysins are highly evolved enzymes.
- Lysins cleave bacterial cell wall peptidoglycan for phage release.
- They offer a novel approach to anti-infective therapy.
Purpose of the Study:
- To evaluate the efficacy of purified recombinant lysins as anti-infectives.
- To explore lysins' potential against Gram-positive bacteria.
- To investigate lysins' synergistic effects with antibiotics.
Main Methods:
- External application of purified recombinant lysins to Gram-positive bacteria.
- Experimental models for systemic and topical infections (sepsis, pneumonia, meningitis, endocarditis).
- Assessment of lysins' impact on mucosal decolonization and biofilms.
Main Results:
- Lysins induce rapid bacterial lysis and log-fold death.
- Effective in systemic, topical, and mucosal models, including biofilms.
- Demonstrated synergy with antibiotics, resensitizing resistant bacteria.
Conclusions:
- Lysins are potent, specific anti-infectives with low resistance potential.
- They effectively target pathogens without harming normal flora.
- Lysins represent a vital therapeutic option amid rising antibiotic resistance.
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