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Evaluation of Phage Therapy in the Context of Enterococcus faecalis and Its Associated Diseases
Andrei S Bolocan1,2, Aditya Upadrasta3,4, Pedro H de Almeida Bettio5,6
1APC Microbiome Ireland, University College Cork, Cork T12 YT20, Ireland. andrei.s.bolocan@gmail.com.
Abstract:
Bacteriophages (phages) or bacterial viruses have been proposed as natural antimicrobial agents to fight against antibiotic-resistant bacteria associated with human infections. Enterococcus faecalis is a gut commensal, which is occasionally found in the mouth and vaginal tract, and does not usually cause clinical problems. However, it can spread to other areas of the body and cause life-threatening infections, such as septicemia, endocarditis, or meningitis, in immunocompromised hosts. Although E. faecalis phage cocktails are not commercially available within the EU or USA, there is an accumulated evidence from in vitro and in vivo studies that have shown phage efficacy, which supports the idea of applying phage therapy to overcome infections associated with E. faecalis. In this review, we discuss the potency of bacteriophages in controlling E. faecalis, in both in vitro and in vivo scenarios. E. faecalis associated bacteriophages were compared at the genome level and an attempt was made to categorize phages with respect to their suitability for therapeutic application, using orthocluster analysis. In addition, E. faecalis phages have been examined for the presence of antibiotic-resistant genes, to ensure their safe use in clinical conditions. Finally, the domain architecture of E. faecalis phage-encoded endolysins are discussed.
Insights
Bacteriophages (phages) show promise as natural antimicrobial agents against antibiotic-resistant Enterococcus faecalis infections. This review explores phage efficacy, genomic analysis, and safety for potential phage therapy applications.
Area of Science:
- Microbiology
- Virology
- Infectious Diseases
Background:
- Enterococcus faecalis is a common bacterium that can cause severe infections in immunocompromised individuals.
- Antibiotic resistance in E. faecalis necessitates alternative therapeutic strategies.
- Bacteriophages (phages) are viruses that infect bacteria and are being explored as antimicrobial agents.
Purpose of the Study:
- To review the efficacy of bacteriophages in controlling Enterococcus faecalis infections.
- To analyze the genomes of E. faecalis phages for therapeutic potential.
- To assess the safety of phages for clinical application.
Main Methods:
- Literature review of in vitro and in vivo studies on E. faecalis phages.
- Genomic comparison of E. faecalis phages using orthocluster analysis.
- Examination of E. faecalis phages for antibiotic-resistant genes and endolysin domain architecture.
Main Results:
- Accumulated evidence supports the efficacy of phage therapy against E. faecalis infections.
- Genomic analysis helps categorize phages for therapeutic suitability.
- Assessment of antibiotic-resistant genes and endolysins ensures phage safety for clinical use.
Conclusions:
- Bacteriophages represent a viable therapeutic option for E. faecalis infections.
- Further research and development are needed for commercial phage cocktails.
- Phage therapy holds potential for combating antibiotic-resistant bacterial infections.
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