Tissue-Specific Extracellular Vesicle Capture for Neuromuscular Biomarkers

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Solution Overview

Problem

Existing methods fail to isolate extracellular vesicles (EVs) from bodily fluids based on their tissue of origin, making it impossible to determine their source or target, limiting their use as biomarkers or therapeutic agents.

Innovation Solution

Develop methods to isolate tissue-specific EVs, such as muscle-derived EVs, by using capture agents that bind specifically to molecules on their surface, forming a complex that can be isolated from bodily fluids or cell culture media.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If EVs are isolated from bodily fluids using conventional methods, then EVs can be obtained for analysis, but it is impossible to determine their tissue of origin or target tissue

Engineering Contradiction:
Improvetissue origin informationVSAvoidisolation method complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent uses tissue-specific capture agents (such as antibodies or aptamers) as intermediaries to bridge the EVs and the isolation system. These capture agents specifically bind to molecules on the EV surface that are characteristic of the tissue of origin, thereby preserving and revealing the tissue origin information during the isolation process without requiring complex additional equipment

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the binding parameters of the isolation system by using capture agents with specific affinity for tissue-specific markers on EVs. This allows selective isolation of EVs from particular tissues based on their molecular surface characteristics, transforming the isolation from a non-specific physical process to a specific biochemical recognition process

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If tissue-specific capture agents are used to isolate muscle-derived EVs, then tissue origin can be determined, but the isolation process becomes more complex

Engineering Contradiction:
Improvetissue origin identification accuracyVSAvoidisolation procedure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The capture agent acts as a specific intermediary that recognizes and binds to tissue-specific markers on the EV surface. This intermediary approach enables precise identification of muscle-derived EVs through their unique molecular signatures while keeping the isolation methodology relatively simple and building upon conventional EV isolation techniques

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs capture agents that can serve multiple functions: they specifically bind to muscle-derived EVs for isolation, simultaneously preserve the tissue origin information, and can be used in conjunction with standard EV isolation workflows. This multi-functionality achieves high measurement precision without proportionally increasing system complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Enables the detection and monitoring of neuromuscular disorders through characterization of EV components, delivery of therapeutic agents, and treatment efficacy assessment.

Implementation Method 1

contacting the bodily fluid with a capture agent that specifically binds to a molecule on the surface of muscle-derived extracellular vesicles to form a capture agent:extracellular vesicle complex

Methodology Applied
Scientific EffectMolecular recognition and binding:

Data Source

PatentUS12371653B2Extracellular vesicles as biomarkers and therapeutics for neuromuscular disorders
Publication Date: 2025.07.29 IOWA STATE UNIV RES FOUND INC
  • US12371653B2 patent drawing
  • US12371653B2 patent drawing
  • US12371653B2 patent drawing

AI summary

This invention relates to extracellular vesicles and method of isolated tissue-specific extracellular vesicles from bodily fluids. The invention further relates to methods of using extracellular vesicles for diagnostic applications for detecting and monitoring diseases, conditions, and damage in a subject. The invention also relates to methods of using extracellular vesicles for therapeutic applications for treating diseases, conditions, and damage in a subject.