Extracellular Matrix Assay Using Quaternary Amine Lysis
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Solution Overview
Problem
Current methods for measuring the functionality of extracellular matrix (ECM) molecules synthesized by cells in culture are not direct, reliable, predictive, reproducible, or specific, and do not allow for the effective screening of cosmetic and pharmaceutical ingredients that enhance ECM functionality.
Innovation Solution
A method involving cell culture at confluence for 24 to 96 hours, followed by cell lysis with a quaternary amine solution, and immunological assay of ECM molecules in the extracellular matrix, allowing for quantitative and visual assessment of molecules within their functional form and interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional ELISA technique is used to measure ECM molecules in culture medium, then measurement can be performed, but the functionality of synthesized molecules cannot be determined
Solution Approach 1:
The invention extracts and isolates the ECM fraction from the culture system by removing culture medium and performing specific lysis steps. This separation allows direct measurement of functional ECM molecules embedded in the matrix structure, rather than measuring total molecules in culture medium, thereby enabling functionality assessment while maintaining measurement precision
Solution Approach 2:
The patent introduces specific lysis buffers and extraction reagents as intermediaries to access ECM molecules without destroying their functional structure. These intermediaries enable the immunological assay to detect molecules in their native ECM context, bridging the gap between quantity measurement and functionality assessment
2Reliability
If immunohistochemical analysis is used to determine ECM functionality, then location visualization is possible, but the technique is cumbersome, expensive, and subjective
Solution Approach 1:
The invention replaces the complex mechanical and visual assessment system of immunohistochemistry with an immunological assay system that uses biochemical interactions and quantitative detection. This substitution eliminates the need for expensive microscopy equipment and subjective visual interpretation while maintaining the ability to determine ECM functionality through objective quantification
Solution Approach 2:
The patent changes the detection parameters from visual fluorescence intensity assessment to quantitative immunological measurement parameters. By using standardized immunological assays with defined detection limits and quantification methods, the technique achieves objectivity and reproducibility without requiring complex equipment, thereby reducing device complexity while improving reliability
3Reliability
If cells are cultured for sufficient time to produce functional ECM, then ECM molecules are synthesized, but the measurement process becomes time-consuming
Solution Approach 1:
The invention performs preliminary actions by establishing cell cultures at confluence before initiating the measurement protocol. This preliminary confluence state ensures that cells have already organized functional ECM structures, allowing the subsequent extraction and measurement steps to directly assess functionality without requiring extended culture periods, thereby reducing time loss while maintaining reliability
4Quantity of substance
If radiolabeled molecules are used to measure overall collagen synthesis, then global synthesis intensity can be measured, but the technique is expensive, restrictive, and does not assess functionality
Solution Approach 1:
The patent replaces expensive radiolabeled molecules with inexpensive immunological reagents (antibodies) for detecting ECM molecules. This substitution uses disposable, non-radioactive detection methods that are both cost-effective and capable of assessing functionality through specific immunological recognition, thereby improving reliability while maintaining the ability to measure quantities
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 rapid, miniaturizable, and automatable screening of ingredients for their impact on ECM molecule quantity and functionality, providing objective and quantitative measurements without destroying the ECM, and allowing visualization of molecules in situ.
Implementation Method 1
a step of lysing the cells with a quaternary amine solution
Implementation Method 2
assaying by immunological technique said molecule of the ECM in the extracellular matrix
Data Source
AI summary
The present invention relates to a novel method for the in vitro assay of molecules from the extracellular matrix that are synthesized by cultured cells, and to the uses thereof as an in vitro measuring kit and/or as a method for screening for cosmetic and/pharmaceutical ingredients.