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Published on: May 12, 2020
The Potential of Phage Therapy against the Emerging Opportunistic Pathogen Stenotrophomonas maltophilia
Jaclyn G McCutcheon1, Jonathan J Dennis1
1Department of Biological Sciences, University of Alberta, Edmonton, AB T6G 2E9, Canada.
Abstract:
The isolation and characterization of bacteriophages for the treatment of infections caused by the multidrug resistant pathogen Stenotrophomonas maltophilia is imperative as nosocomial and community-acquired infections are rapidly increasing in prevalence. This increase is largely due to the numerous virulence factors and antimicrobial resistance genes encoded by this bacterium. Research on S. maltophilia phages to date has focused on the isolation and in vitro characterization of novel phages, often including genomic characterization, from the environment or by induction from bacterial strains. This review summarizes the clinical significance, virulence factors, and antimicrobial resistance mechanisms of S. maltophilia, as well as all phages isolated and characterized to date and strategies for their use. We further address the limited in vivo phage therapy studies conducted against this bacterium and discuss the future research needed to spearhead phages as an alternative treatment option against multidrug resistant S. maltophilia.
Insights
Bacteriophages offer a promising alternative to antibiotics for treating multidrug-resistant Stenotrophomonas maltophilia infections. Further research into in vivo phage therapy is crucial for clinical application.
Area of Science:
- Microbiology
- Infectious Diseases
- Phage Therapy
Background:
- Multidrug-resistant Stenotrophomonas maltophilia causes increasing nosocomial and community-acquired infections.
- Bacterial virulence factors and antimicrobial resistance genes contribute to infection severity.
- Phage therapy presents a potential alternative to conventional antibiotics.
Purpose of the Study:
- To review the clinical significance, virulence, and resistance mechanisms of S. maltophilia.
- To summarize characterized bacteriophages targeting S. maltophilia.
- To discuss current and future strategies for phage therapy against S. maltophilia.
Main Methods:
- Literature review of S. maltophilia clinical significance, virulence, and resistance.
- Compilation and characterization of S. maltophilia bacteriophages.
- Analysis of existing in vitro and in vivo phage therapy studies.
Main Results:
- S. maltophilia possesses significant virulence and resistance mechanisms.
- Numerous bacteriophages targeting S. maltophilia have been isolated and characterized.
- Limited in vivo studies exist, highlighting a gap in translational research.
Conclusions:
- Bacteriophages are viable candidates for treating S. maltophilia infections.
- Further in vivo studies are essential to advance phage therapy.
- Phage therapy requires development to combat multidrug-resistant S. maltophilia.
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