Iron-Responsive Probiotic for Inflamed Gut Survival
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Solution Overview
Problem
Conventional Lactobacillus-based probiotics struggle to survive and compete in the hostile environment of the inflamed intestine, particularly due to increased iron levels from conditions like intestinal bleeding, leading to reduced efficacy in treating intestinal diseases.
Innovation Solution
A Streptococcus thermophilus strain, designated as Streptococcus thermophilus JB010 (NCIMB 41856), which can increase its growth rate in response to iron availability, allowing it to compete effectively in iron-rich environments and survive in both healthy and diseased gut conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional Lactobacillus-based probiotics are administered, then they provide general probiotic benefits in healthy conditions, but they fail to survive and compete in the iron-rich environment of the inflamed intestine
Solution Approach 1:
The patent changes the key parameter of iron responsiveness in probiotic bacteria. Conventional Lactobacillus strains are iron-non-responsive and fail to grow in iron-rich inflamed environments. The invention uses Streptococcus thermophilus strains that are iron-responsive, meaning their growth rate increases in response to iron availability. This parameter change enables the probiotic to thrive specifically in the iron-rich conditions of intestinal inflammation, turning the previously harmful iron excess into a selective advantage for the probiotic organism.
2Productivity
If iron levels increase in the intestine due to conditions like intestinal bleeding, then pathogenic bacteria growth is promoted, but conventional probiotics cannot compete and their efficacy is reduced
Solution Approach 1:
The invention changes the growth parameter of the probiotic bacteria in response to iron levels. Streptococcus thermophilus JB010 exhibits increased growth rate specifically in the presence of iron, allowing it to outcompete pathogenic bacteria that also respond to iron. This differential response creates a competitive advantage for the probiotic in iron-rich inflamed environments where pathogenic bacteria would normally proliferate unchecked.
Solution Approach 2:
The invention converts the harmful effect of iron excess in inflamed intestines into a beneficial selective pressure. Instead of iron being merely a harmful factor that promotes pathogen growth, it becomes a signal that stimulates the growth of the iron-responsive probiotic Streptococcus thermophilus. The probiotic utilizes the iron-rich environment to its advantage, converting what was previously a harmful condition into a beneficial growth-promoting environment for the therapeutic organism.
3Adaptability or versatility
If a probiotic is to effectively treat intestinal disease by outcompeting pathogenic bacteria, then it must survive in the hostile inflamed environment, but conventional probiotics lack the necessary adaptability
Solution Approach 1:
The invention changes the adaptability parameter of the probiotic by selecting Streptococcus thermophilus strains with specific iron-responsive characteristics. These strains can detect and respond to iron availability by modulating their growth rate, providing adaptability to the varying conditions of the intestinal environment. This adaptability ensures reliable therapeutic efficacy in inflamed conditions where conventional non-adaptive probiotics fail.
Data Source
AI summary
A probiotic organism which is capable of proliferation in iron-rich media, an environment which is generally unfavourable to probiotic organisms, is described.