Micropurification With Protective Barriers for Precise Cell Isolation
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Solution Overview
Problem
Current methods for isolating specific cell types from histological samples, particularly in the context of tumor heterogeneity, are costly, labor-intensive, prone to operator error, and lack precision, making them unsuitable for high-throughput applications in personalized medicine.
Innovation Solution
A method involving the use of a specific probe that forms a protective barrier on target cells, followed by a micropurification solution that differentially processes unlabeled cells, allowing for high-precision isolation of labeled cells using a chemical material deposited by the probe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual scraping or micromanipulators are used to isolate cells, then spatial resolution is low and non-target cell types may be captured, but the method is low cost and simple to perform
Solution Approach 1:
The patent applies preliminary action by depositing a protective barrier on target cells before the isolation process. The barrier is formed by incubating the tissue section with a probe that binds to target cells, followed by application of a protective solution that creates a physical barrier. This preliminary protective action enables subsequent high-precision isolation without requiring complex manual manipulation tools, resolving the contradiction between spatial resolution and method complexity.
2Manufacturing precision
If laser capture microdissection or mesodissection techniques are used, then spatial resolution is maintained suitable for isolating cells in heterogeneous environments, but the techniques are costly, labor and time intensive, and subject to operator error
Solution Approach 1:
The patent implements self-service by enabling the tissue section to selectively protect its own target cells through probe binding. The probe specifically binds to target cells and the protective solution automatically forms barriers only on these bound cells, eliminating the need for operator intervention during the isolation process. This self-service mechanism maintains spatial resolution while dramatically improving throughput efficiency by removing labor-intensive manual operations.
3Manufacturing precision
If immunohistochemistry-based microdissection methods are used, then improved yield and precision are achieved, but the methods remain costly and labor intensive
Solution Approach 1:
The patent merges the detection function (probe binding to target cells) with the protection function (barrier formation on bound cells) into a single integrated process. Instead of separate steps for identification and isolation, the probe simultaneously performs both functions by binding to target cells and enabling protective barrier formation. This merging reduces process complexity while maintaining high isolation precision.
4Manufacturing precision
If conventional isolation methods are used on heterogeneous tissue sections, then all cell types are captured including non-target cells, but the methods are simple and low cost
Solution Approach 1:
The patent applies local quality by creating protective barriers with spatially selective properties. The probe binds specifically to target cells at particular locations within the tissue section, and the protective solution forms barriers only at these localized binding sites. This local differentiation enables high cell type specificity and purity, as only target cells receive protective coverage while non-target cells remain unprotected and can be selectively removed.
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 high-resolution, high-throughput isolation of specific cell types with minimal human intervention, reducing costs and improving precision compared to existing techniques, suitable for molecular analysis without complex instrumentation.
Implementation Method 1
a chemical material is produced that covers the cell to which the probe is bound
Implementation Method 2
forming a protective barrier on target cells, followed by a micropurification solution that differentially processes unlabeled cells
Implementation Method 3
micropurification solution that selectively degrades or differentially processes cells or cellular components not covered by the protective barrier
Data Source
Figure 1A~1E
Figure 2
Figure 3A~3E
AI summary
Methods, techniques, and kits are provided herein for purifying cells using molecular targeting, at a cellular or subcellular level. The techniques comprise labeling a biological sample comprising cells with a probe capable of producing a protective barrier. The barrier is deposited onto the surface of the labeled cells or structures, to protect and retain the biological material under the barrier. A micropurification solution is applied to the biological sample, wherein the micropurification solution degrades, digests, or otherwise processes cells not covered by the barrier, allowing isolation of the target cells. In some aspects, a plurality of probes, each specific to a different target, may be used. The techniques may be performed without the need for complex instrumentation involving microscopy.