Lipid Nanoparticles for Long-Chain Ceramide Delivery
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Solution Overview
Problem
Long-chain ceramides have extremely low solubility in aqueous solutions, limiting their use and requiring organic solvents for dissolution, which poses challenges for targeted delivery to specific cells like cancer cells, potentially causing side effects on normal cells.
Innovation Solution
The development of lipid nanoparticles comprising long-chain ceramides with excellent water solubility and dispersibility, achieved by incorporating exogenous long-chain ceramides into a lipid layer, which enhances their target delivery properties and stability in aqueous environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If long-chain ceramides are dissolved in organic solvents, then solubility is improved, but water solubility deteriorates
Solution Approach 1:
The patent uses lipid nanoparticles as an intermediary carrier to deliver long-chain ceramides. The ceramides are encapsulated within the lipid nanoparticle structure, allowing them to be transported in aqueous environments without direct contact with water, thus resolving the solubility contradiction.
Solution Approach 2:
The patent changes the physical state and delivery form of long-chain ceramides from direct dissolution to encapsulation within lipid nanoparticles. This parameter change allows the ceramides to maintain their integrity while achieving water dispersibility through the nanoparticle carrier system.
2Measurement precision
If long-chain ceramides are delivered to specific cells, then target delivery is improved, but side effects on normal cells are reduced
Solution Approach 1:
The patent applies local quality by functionalizing the lipid nanoparticle surface with specific ligands or antibodies that recognize target cells. This allows the ceramide delivery system to exhibit different properties at different locations - high affinity for target cells while having minimal interaction with normal cells, thus reducing side effects.
Solution Approach 2:
The patent segments the ceramide delivery system into distinct functional components: the lipid nanoparticle carrier, the encapsulated ceramide payload, and the targeting moiety. This segmentation allows independent optimization of each component for targeted delivery while minimizing off-target effects.
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 lipid nanoparticles effectively deliver long-chain ceramides to in vivo targets, inducing cell apoptosis specifically in cancer cells while maintaining high water solubility and dispersibility, thus enhancing their utility as a cell therapy product.
Implementation Method 1
incorporating exogenous long-chain ceramides into a lipid layer
Data Source
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AI summary
A long-chain ceramide such as an exogenous C18-ceramide has very low solubility in an aqueous solution and thus has limited use, and when even used as a drug, has had poor cell delivery. In this regard, the prevent invention provides lipid nanoparticles comprising a long-chain ceramide and a preparation method therefor. Through the present invention, by delivering long-chain ceramides such as C18-ceramides to an in vivo target through lipid nanoparticles, cell death may be effectively induced according to the purpose, and utilization as a cell therapy product with high water solubility and high water dispersibility may be increased.