APOE Lipoprotein Systems with Glycerophospholipids for Brain Delivery
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Solution Overview
Problem
Effective in vivo delivery of agents such as small molecules, proteins, peptides, nucleic acids, and other biomolecules remains an ongoing clinical challenge, and lipoproteins are not adequately exploited for targeted delivery to specific tissues like the brain.
Innovation Solution
Lipoprotein systems comprising apolipoprotein E (APOE) and glycerophospholipids, such as phosphatidylglycerols, are designed to traverse the blood-brain barrier, offering improved polydispersity, thermal stability, and binding affinities, with customizable shapes and payloads for targeted delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional delivery systems are used, then general delivery is achieved, but targeted delivery to the brain is insufficient
Solution Approach 1:
The patent uses lipoprotein particles as intermediary carriers that naturally traverse the blood-brain barrier. These particles consist of apolipoproteins bound to lipid cores, creating a biocompatible delivery system that mimics natural lipoproteins to facilitate brain delivery while protecting therapeutic agents
Solution Approach 2:
The patent modifies physical and chemical parameters of the delivery system by controlling particle size (20-200 nm), lipid composition (phosphatidylcholine, phosphatidylethanolamine, cholesterol), and apolipoprotein content to optimize blood-brain barrier penetration and targeted delivery efficiency
2Reliability
If lipoprotein systems are designed with specific compositions, then binding affinity and stability are improved, but system complexity increases
Solution Approach 1:
The patent creates composite lipoprotein particles combining multiple lipid types (phosphatidylcholine, phosphatidylethanolamine, cholesterol, triglycerides) with apolipoproteins (APOE, APOA1, APOC3) to achieve enhanced binding affinity, thermal stability, and controlled degradation while maintaining a defined structural organization
Solution Approach 2:
The patent designs lipoprotein particles with multi-functional capabilities: the lipid core provides structural stability and binding affinity, apolipoproteins enable blood-brain barrier traversal and receptor interaction, and the modular structure allows incorporation of various therapeutic payloads (small molecules, proteins, nucleic acids) for different disease applications
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 lipoprotein systems provide efficient and targeted delivery of therapeutic agents to the brain, enhancing treatment options for neurological and other diseases by leveraging the biophysical advantages of APOE and glycerophospholipids.
Implementation Method 1
Apolipoproteins are known for their ability to bind lipid molecules
Implementation Method 2
apolipoproteins such as apolipoprotein E (APOE)... capable of modulating lipid metabolism and delivering payloads directly to the brain
Implementation Method 3
Inclusion of glycerophospholipids such as PG lipids affords the lipoprotein system of the present disclosure improved polydispersity, thermal stability, and binding affinities
Implementation Method 4
capable of modulating lipid metabolism and delivering payloads directly to the brain
Data Source
AI summary
The present disclosure includes systems and compositions based on lipoproteins. The lipoprotein systems may optionally include payloads for delivery to cells, tissues, organs and/or subjects in need thereof. Methods of utilizing the lipoprotein systems are also provided herein.