Bacteriophage ECTA-47 Lytic Control of E. coli
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Solution Overview
Problem
There is a need for novel bacteriophages and methods to effectively control the growth and colonization of Escherichia coli (E. coli) in various environments, including food products, equipment, animals, and humans, particularly to address antibiotic-resistant organisms and food-borne illnesses, as well as to detect and remove undesirable bacteria from industrial and medical settings.
Innovation Solution
The development of specific bacteriophages such as ECTA-47, ECML-83, ECML-119, and ECML-122, which exhibit lytic activity against E. coli, allowing for their use in compositions to inhibit bacterial growth, detect bacterial presence, and remove antibiotic-resistant pathogens from environments, and treat diseases caused by these bacteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antibiotics are used to control bacterial infections, then broad-spectrum antibacterial effect is achieved, but antibiotic resistance develops and safety concerns arise
Solution Approach 1:
The patent applies segmentation by using multiple specific bacteriophages (ECTA-47, ECML-83, ECML-119, ECML-122) each targeting specific E. coli strains, rather than relying on a single broad-spectrum antibiotic. This segmented approach allows precise targeting of different bacterial strains while avoiding the development of broad antibiotic resistance.
Solution Approach 2:
The patent uses bacteriophages as intermediary agents that specifically infect and lyse E. coli bacteria. These phages act as mediators between the treatment goal and the bacterial target, providing selective pressure only on E. coli without affecting other bacteria or developing cross-resistance with antibiotic treatments.
2Quantity of substance
If conventional detection methods are used for E. coli, then general bacterial presence is detected, but specific identification of target strains is difficult
Solution Approach 1:
The patent applies local quality by developing detection methods that specifically identify certain properties or markers of target E. coli strains. The bacteriophages exhibit local specificity by binding to particular receptors on E. coli surface, enabling precise identification of target strains rather than general bacterial detection.
Solution Approach 2:
The patent employs colorimetric detection methods where bacteriophage infection of E. coli produces visible color changes. This allows specific identification of target E. coli strains through colorimetric assays, providing both detection and strain-specific identification in a single process.
3Adaptability or versatility
If broad-spectrum antimicrobial agents are used, then multiple bacterial types are controlled, but specificity against target E. coli strains is reduced
Solution Approach 1:
The patent achieves universality by developing a panel of bacteriophages (ECTA-47, ECML-83, ECML-119, ECML-122) that collectively cover multiple E. coli strains. Each phage in the panel has specific activity against particular strains, but together they provide broad coverage while maintaining high specificity for each target strain.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
These bacteriophages effectively inhibit E. coli growth and colonization, enable specific detection of E. coli, and reduce the presence of antibiotic-resistant pathogens, thereby preventing food-borne illnesses and treating related diseases in both humans and animals.
Implementation Method 1
Bacteriophages are bacterial viruses that attach to their specific hosts and kill them by internal replication and bacterial lysis involving a complex lytic cycle involving several structural and regulatory genes
Data Source
AI summary
The present invention is directed to isolated bacteriophage having strong lytic activity against strains of E. coli, and methods of using that bacteriophage, and/or progeny or derivatives derived therefrom, to control the growth of E. coli in various settings.