Platelet Membrane-Coated Nanoparticles for Damaged Vasculature
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Solution Overview
Problem
Current methods for developing functional nanoparticles to treat diseases associated with damaged or leaky vasculature are hindered by unanticipated material properties and biological events, failing to replicate complex interfaces and leading to exposure of foreign materials.
Innovation Solution
The use of nanoparticles with an inner core of non-cellular material and an outer surface comprising a cellular membrane derived from platelets, optionally combined with therapeutic agents, to target and treat damaged vasculature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If bottom-up nanoengineering and surface chemistry approaches are used to develop functional nanoparticles, then nanoparticle functionality can be enhanced, but foreign material exposure increases and complex biological interfaces cannot be replicated
Solution Approach 1:
The patent uses cell-free platelet membranes as biological templates to create nanoparticle coatings that replicate natural platelet-vasculature interfaces. This copying approach allows the nanoparticles to exhibit native biological recognition properties without requiring synthetic functionalization, thereby maintaining functionality while eliminating foreign material exposure.
Solution Approach 2:
The invention creates composite nanoparticles consisting of a synthetic or natural core material coated with cell-free platelet membranes. This composite structure combines the stability and functionality of the core material with the biocompatibility and biological recognition capabilities of the platelet membrane coating, resolving the contradiction between functionality and biocompatibility.
2Adaptability or versatility
If reductionist functionalization approaches are used to create functional nanoparticles, then specific functions can be added, but the complex interfaces present in nature cannot be replicated
Solution Approach 1:
Instead of attempting to replicate complex platelet-vasculature interfaces through stepwise functionalization, the patent directly copies intact platelet membranes onto nanoparticle surfaces. This approach preserves the native complexity and multifunctionality of platelet interfaces, including protein coronas and cell-adhesion molecules, without requiring reductionist assembly.
3Ease of manufacture
If conventional nanoparticle approaches are used, then manufacturing simplicity is maintained, but unanticipated material properties and biological events negatively impact effectiveness
Solution Approach 1:
The patent employs a self-assembly approach where cell-free platelet membranes spontaneously coat nanoparticle surfaces through natural adsorption processes. This self-service mechanism eliminates complex manufacturing steps while ensuring reliable nanoparticle performance by utilizing inherent biological properties of platelet membranes for stable coating formation.
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
This approach enables selective adherence to damaged vasculature, reduced immune activation, and enhanced therapeutic efficacy, as demonstrated by improved drug delivery in models of coronary restenosis and bacterial infection.
Implementation Method 1
This approach enables selective adherence to damaged vasculature
Implementation Method 2
an outer surface comprising a cellular membrane derived from a platelet
Data Source
AI summary
The present invention relates to prevention and/or treatment of diseases or disorders associated with a damaged or leaky vasculature in a subject. The present invention provides for methods, combinations and pharmaceutical compositions for preventing and/or treating a disease or disorder associated with a damaged or leaky vasculature in a subject, using, inter alia, an effective amount of a nanoparticle comprising an inner core comprising a non-cellular material, an outer surface comprising a cellular membrane derived from a platelet; and optionally an agent for preventing, treating, diagnosing, or prognosing the disease or disorder and/or monitoring prevention or treatment of the disease or disorder. Exemplary diseases or disorders include hemorrhage (bleeding), cardiovascular diseases or disorders, diseases or disorders associated with narrowing of a blood vessel, tumors or cancers.