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A Method to Assess Bacteriocin Effects on the Gut Microbiota of Mice
Published on: July 25, 2017
Genetically engineered bacteriocins and their potential as the next generation of antimicrobials
Osnat Gillor1, Lisa M Nigro, Margaret A Riley
1Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06511, USA. Osnat.gillor@yale.edu
Abstract:
The discovery of penicillin by Fleming in 1928 was an historical milestone in the fight against infectious disease. Over the following fifty years, pharmaceutical companies discovered and developed over 100 antibiotics effective against a wide range of human pathogens. More recently, the dramatic rise in antibiotic-resistant pathogens has stimulated renewed efforts to identify, develop or redesign antibiotics active against these multi-resistant bacteria. This review focuses on such efforts directed at one large and highly diverse family of toxins, the bacteriocins, which hold great promise as the next generation of antimicrobials. The majority of bacteriocins differ from traditional antibiotics in one critical way: they have a relatively narrow killing spectrum and are, therefore, toxic only to bacteria closely related to the producing strain. Accordingly, they can be considered "designers drugs" that target specific bacterial pathogens. In this review we focus on recent attempts to generate custom designed bacteriocins using genetic engineering techniques. These efforts illustrate the potential of genetically-modified bacteriocins to solve some of the most challenging problems in disease control.
Insights
Bacteriocins, a class of toxins, show promise as next-generation antimicrobials. Genetic engineering techniques are being used to create custom bacteriocins to combat antibiotic-resistant bacteria.
Area of Science:
- Microbiology
- Biotechnology
- Drug Discovery
Background:
- The discovery of penicillin marked a milestone in combating infectious diseases, leading to the development of over 100 antibiotics.
- The rise of antibiotic-resistant pathogens necessitates the development of novel antimicrobial strategies.
- Bacteriocins, a diverse family of toxins, are being explored as potential next-generation antimicrobials due to their targeted activity.
Purpose of the Study:
- To review recent efforts in generating custom-designed bacteriocins using genetic engineering.
- To highlight the potential of genetically-modified bacteriocins in addressing challenges posed by multi-resistant bacteria.
Main Methods:
- Focus on genetic engineering techniques for bacteriocin design.
- Review of literature on bacteriocin development and application.
Main Results:
- Bacteriocins possess a narrow killing spectrum, targeting specific bacterial strains.
- Genetic modification allows for the creation of custom bacteriocins with tailored activity.
- These engineered bacteriocins show potential in combating challenging multi-resistant pathogens.
Conclusions:
- Genetically modified bacteriocins represent a promising approach to overcome antibiotic resistance.
- The targeted nature of bacteriocins offers a "designer drug" strategy for specific pathogens.
- Further development of engineered bacteriocins could significantly impact disease control efforts.
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