Bacillus Polypeptide Vaccine Composition Broad-Spectrum Protection
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Solution Overview
Problem
Current methods lack effective solutions for addressing the broad spectrum protection against Bacillus species infections, particularly in immunocompromised individuals and nosocomial settings, due to the variability and virulence of Bacillus strains like B. anthracis, B. cereus, and B. thuringiensis.
Innovation Solution
Development of a composition comprising iron-regulated polypeptides natively expressed by Bacillus spp., which are upregulated in iron-chelated culture media, along with corresponding antibodies and whole cell preparations, to provide immunological protection and diagnostic tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the existing anthrax vaccine primarily targeting protective antigen (PA) is used, then protection against B. anthracis is achieved, but protection against other Bacillus species (B. cereus, B. thuringiensis, etc.) is insufficient
Solution Approach 1:
The patent develops a multicomponent vaccine composition that includes polypeptides from multiple Bacillus species (B. anthracis PA, B. cereus hemolysin BL, B. thuringiensis crystal protein, and B. subtilis neutral sphingomyelinase). This multi-functional approach enables the vaccine to provide broad-spectrum protection against various Bacillus species simultaneously, rather than targeting a single pathogen.
2Adaptability or versatility
If conventional vaccine approaches targeting single Bacillus species are used, then specific immunity is achieved, but protection in immunocompromised individuals and nosocomial settings is inadequate
Solution Approach 1:
The patent employs a composite vaccine formulation combining four distinct polypeptide components derived from different Bacillus species. Each component targets different virulence mechanisms (protective antigen, hemolysin, crystal protein, sphingomyelinase), creating a synergistic effect that provides robust protection against diverse Bacillus strains including those affecting immunocompromised individuals.
3Productivity
If iron-chelated culture media is used to upregulate polypeptide expression, then production yield of target polypeptides increases, but culture conditions become more complex
Solution Approach 1:
The patent utilizes changes in cultural conditions, specifically iron availability through chelators, to regulate and upregulate the expression of target polypeptides. By controlling iron parameters in the culture medium, the system achieves enhanced polypeptide production without requiring complex genetic engineering or post-production purification steps.
Data Source
AI summary
The present invention provides isolated polypeptides isolatable from a Bacillus spp. Also provided by the present invention are compositions that include one or more of the polypeptides, and methods for making and methods for using the polypeptides.