Heat-Killed Enterococcus faecalis Inhibits Porphyromonas gingivalis
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Solution Overview
Problem
Porphyromonas gingivalis infections pose a significant challenge due to the bacterium's ability to cause periodontitis and various systemic diseases, with existing treatments facing limitations in effectively inhibiting its growth and gingipain activity.
Innovation Solution
The use of heat-killed lactic acid bacterium Enterococcus faecalis (HkEf) is proposed as a prophylactic and therapeutic agent to inhibit the growth and gingipain activity of P. gingivalis, offering a suppressive effect on both Arg-gingipain and Lys-gingipain activities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional treatments are used to inhibit P. gingivalis growth, then some level of inhibition is achieved, but the treatment effectiveness is insufficient and limitations remain
Solution Approach 1:
The patent introduces heat-killed Enterococcus faecalis (HkEf) as an intermediary substance that mediates the inhibition of P. gingivalis growth and gingipain activity. HkEf acts as a therapeutic agent that combines multiple mechanisms including direct antibacterial effects, inhibition of gingipain enzymes, and modulation of host immune response, thereby achieving superior treatment effectiveness while suppressing harmful gingipain activity.
2Adaptability or versatility
If P. gingivalis is treated as a pathogen causing multiple systemic diseases, then comprehensive treatment is needed, but existing treatments fail to address all aspects effectively
Solution Approach 1:
The patent applies multi-functionality by demonstrating that HkEf can simultaneously address multiple aspects of P. gingivalis infection and its systemic effects. The heat-killed bacterium provides broad-spectrum antibacterial activity, inhibits both Arg-gingipain and Lys-gingipain enzymes, and modulates host immune responses, making it a universal therapeutic agent capable of addressing periodontitis and associated systemic diseases through a single treatment mechanism.
Data Source
AI summary
Provided is a prophylactic and/or therapeutic agent for Porphyromonas gingivalis infection. A prophylactic and/or therapeutic agent for Porphyromonas gingivalis infection, comprising killed Enterococcus faecalis. A prophylactic and/or therapeutic agent for a disease attributable to Porphyromonas gingivalis, comprising killed Enterococcus faecalis. A medicine or food for prevention and/or treatment of Porphyromonas gingivalis infection, comprising killed Enterococcus faecalis. A medicine or food for prevention and/or treatment of a disease attributable to Porphyromonas gingivalis, comprising killed Enterococcus faecalis. A growth inhibitor for Porphyromonas gingivalis, comprising killed Enterococcus faecalis. An inhibitor for gingipain activity, comprising killed Enterococcus faecalis.