Bacteria-Derived Lipid Composition for Enhanced Cellular Uptake
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current delivery systems for heterologous functional agents face challenges in penetrating cell barriers effectively, limiting their ability to act on organisms.
Innovation Solution
A bacteria-derived lipid composition comprising bacterial lipids and an ionizable lipid, reconstructed through a process involving purification, film reconstitution in organic solvents, and processing in a microfluidics device, is developed to enhance cellular uptake of these agents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional delivery systems are used, then the delivery mechanism is simple, but the ability to penetrate cell barriers is limited
Solution Approach 1:
The patent employs composite lipid nanoparticles comprising both bacterial lipids and synthetic lipids (such as ionizable lipids or cationic lipids). This composite structure combines the natural biocompatibility of bacterial lipids with the enhanced cell-penetrating properties of synthetic lipids, thereby improving cell barrier penetration ability while maintaining a biologically inspired delivery system.
Solution Approach 2:
The patent modifies the chemical and physical parameters of the lipid components, including the incorporation of ionizable lipids with specific pKa values and cationic lipids with particular charge densities. These parameter changes enable the delivery system to respond to physiological conditions and enhance cellular uptake through electrostatic interactions with cell membranes.
2Reliability
If bacterial lipids alone are used, then the system is biocompatible, but the encapsulation efficiency of heterologous functional agents is insufficient
Solution Approach 1:
The patent creates composite lipid formulations by combining bacterial lipids with synthetic lipids that have superior encapsulation properties. The synthetic lipid components (ionizable or cationic) provide enhanced binding affinity for heterologous functional agents through electrostatic interactions, while the bacterial lipid component maintains biocompatibility and natural cellular recognition.
Solution Approach 2:
The patent introduces specific functional regions within the lipid nanoparticle structure by incorporating lipids with localized charged domains. These localized quality enhancements at specific regions of the nanoparticle surface improve the binding and encapsulation of heterologous functional agents without compromising the overall biocompatibility provided by the bacterial lipid matrix.
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 bacteria-derived lipid composition effectively increases the cellular uptake of heterologous functional agents, such as polynucleotides, by modifying the bacterial component with ionizable lipids, leading to improved delivery and encapsulation efficiency.
Implementation Method 1
A bacteria-derived lipid composition comprising (a) a bacterial component comprising one or more lipids extracted from a bacterial source; and (b) an ionizable lipid
Implementation Method 2
The ionizable lipid has two or more of the characteristics listed below: (i) at least 2 ionizable amines; (v) an N:P ratio of at least 10
Data Source
AI summary
Disclosed herein are bacteria-derived lipid compositions comprising (a) a bacterial component comprising one or more lipids extracted from a bacterial source; and (b) an ionizable lipid. The disclosure also includes a method for making a making a bacteria-derived lipid composition, comprising reconstructing (a) a bacteria component comprising one or more lipids extracted from a bacterial source in the presence of (b) an ionizable lipid, to produce the bacteria-derived lipid composition, and loading into the bacteria-derived lipid composition with one or more heterologous functional agents.