Bacteriophage-Polymer Hybrid Vector for Gene Delivery
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Solution Overview
Problem
Bacteriophages are inefficient vectors for delivering transgenes to mammalian cells due to their inherent inability to target and deliver genes to mammalian cells, limiting their clinical application in gene therapy and other genetic applications.
Innovation Solution
A novel hybrid vector system comprising a recombinant bacteriophage genetically engineered to display tumor-targeting ligands and complexed with cationic polymers, creating a bacteriophage-polymer complex with a net positive charge that enhances target-specific cellular transduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bacteriophages are used as gene delivery vectors, then safety is improved and production simplicity is improved, but gene delivery efficiency to mammalian cells deteriorates
Solution Approach 1:
The patent combines bacteriophage particles with cationic polymers to create a hybrid vector system. The bacteriophage provides safety and targeting capabilities, while the cationic polymer enhances gene delivery efficiency by facilitating cellular uptake and protecting the genetic material during transit to mammalian cells.
2Measurement precision
If bacteriophages are genetically engineered to display tumor-targeting ligands, then targeting specificity is improved, but inherent inability to deliver genes to mammalian cells persists
Solution Approach 1:
The patent merges the targeting functionality of genetically engineered bacteriophages with the gene delivery capability of cationic polymers. The bacteriophage displays tumor-targeting ligands for specific localization, while the cationic polymer complex provides the mechanism for efficient gene transfer into mammalian cells, thus combining both functions in a single hybrid vector system.
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
The bacteriophage-polymer complex significantly improves the ability of bacteriophages to perform target-specific cellular transduction and gene delivery, offering a safer and more efficient method for gene therapy applications, including cancer treatment and vaccine delivery.
Implementation Method 1
complexed with cationic polymers, creating a bacteriophage-polymer complex with a net positive charge that enhances target-specific cellular transduction
Data Source
AI summary
The invention provides a targeted bacteriophage-polymer complex comprising a recombinant targeted-bacteriophage and a cationic polymer. The complex has a net positive charge. The invention provides methods of preparing bacteriophages and complexes thereof, and to their uses for the delivery of transgenes in a variety of gene therapy applications.