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Synthesis of Infectious Bacteriophages in an E. coli-based Cell-free Expression System
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Nano/microformulations for Bacteriophage Delivery
Pilar Cortés1, Mary Cano-Sarabia2, Joan Colom3
1Departament de Genètica i Microbiologia, Universitat Autònoma de Barcelona, Campus de Bellaterra, Cerdanyola del Vallès, Spain.
Methods in Molecular Biology (Clifton, N.J.)
|December 8, 2023
Summary
Encapsulating bacteriophages using lipid or alginate materials protects them from harsh conditions. These methods enhance bacteriophage stability and delivery for effective phage therapy.
Area of Science:
- Microbiology
- Biotechnology
- Therapeutic drug delivery
Background:
- Bacteriophages (phages) are viruses that infect bacteria and show promise for treating infections.
- Phage therapy faces challenges due to phage instability in environmental conditions and difficulties in controlled delivery.
- Encapsulation techniques offer a solution to protect phages and improve their therapeutic application.
Purpose of the Study:
- To describe and evaluate two distinct encapsulation methods for bacteriophages.
- To assess the suitability of biocompatible materials for phage encapsulation.
- To determine if encapsulation affects the antibacterial efficacy of bacteriophages.
Main Methods:
- Two encapsulation methodologies were employed: a lipid cationic mixture and an alginate-CaCO3 combination.
- Purified, high-concentration phage lysates (10^10–10^11 pfu/mL) and specialized equipment were utilized.
- Salmonella bacteriophages with varying morphologies were successfully encapsulated using both techniques.
Main Results:
- Both lipid-cationic and alginate-CaCO3 encapsulation methods were successfully applied to Salmonella phages.
- The encapsulation materials did not alter the inherent antibacterial activity of the bacteriophages.
- The developed technologies demonstrated adaptability to different phage types and potential delivery routes.
Conclusions:
- Encapsulation is a viable strategy to protect bacteriophages and enhance their stability for therapeutic use.
- The described methods offer versatile approaches for bacteriophage delivery in therapy.
- These advancements hold significant innovative value for the field of bacteriophage therapy.
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