Aptamer-Based Monocyte Isolation Specificity

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Solution Overview

Problem

Current methods for isolating or depleting monocytes and macrophages from biological samples are inefficient and lack specificity, which hinders their application in therapeutic and diagnostic processes.

Innovation Solution

Development of aptamer sequences that specifically bind to monocytes and macrophages, allowing for the isolation or depletion of these cells through targeted binding and separation techniques.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If conventional methods are used for isolating or depleting monocytes and macrophages, then the process can be performed with existing techniques, but the isolation efficiency and specificity are insufficient

Engineering Contradiction:
Improveisolation specificityVSAvoidisolation efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent replaces conventional mechanical or physical separation methods with a biochemical recognition system. Aptamers are used as specific ligands that bind to surface markers on monocytes and macrophages, enabling selective isolation through biological recognition rather than mechanical separation. This substitution achieves both high specificity through molecular recognition and high efficiency through scalable biochemical processing.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces aptamers as intermediary molecules that mediate the isolation process. These aptamers serve as specific mediators that recognize and bind to target cells (monocytes and macrophages) through their surface markers, facilitating selective separation. The aptamers act as a bridge between the isolation system and the target cells, enabling precise control over which cells are isolated or depleted.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If conventional isolation methods are used, then existing equipment and procedures can be utilized, but the availability of pure cell populations for therapeutic applications is limited

Engineering Contradiction:
Improvetherapeutic applicabilityVSAvoidcell population purity
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent replaces conventional mechanical separation techniques with aptamer-based biochemical recognition. This substitution enables obtaining highly pure cell populations suitable for therapeutic applications by using specific molecular recognition rather than physical separation, which often results in mixed cell populations.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the isolation mechanism from physical/ mechanical parameters to biochemical parameters. By using aptamers with specific binding affinities for monocyte and macrophage surface markers, the system achieves precise control over cell population purity, ensuring therapeutic-grade purity levels that conventional methods cannot achieve.

Inventive Principle:
Principle #35Parameter changes

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 use of aptamers enables efficient and specific isolation or depletion of monocytes and macrophages, enhancing their availability for therapeutic applications and improving the accuracy of diagnostic methods.

Implementation Method 1

aptamer sequences that specifically bind to monocytes and/or macrophages

Methodology Applied
Scientific EffectMolecular recognition and binding:

Data Source

PatentUS12215324B2Monocyte and macrophage binding aptamers and their application
Publication Date: 2025.02.04 UNIV OF WASHINGTON
  • US12215324B2 patent drawing
  • US12215324B2 patent drawing
  • US12215324B2 patent drawing

AI summary

Provided herein are compositions comprising aptamers that specifically bind monocytes and/or macrophage and methods for their use. These aptamer compositions can be used in methods for isolating and/or enriching monocytes and/or macrophages or depleting cell populations of monocytes and/or macrophages. Further provided are methods of using the aptamers or cell populations generated using them in the methods disclosed herein for therapies and/or drug delivery.