Semi-solid Support for 3D Cell Culture and Compound Screening
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Solution Overview
Problem
Current methods for testing the influence of compounds on cellular phenotypes are inefficient, particularly for cancer patients, as they require multiple handling steps and do not accurately recapitulate in vivo behavior, leading to ineffective treatment outcomes in late-stage cancer.
Innovation Solution
A method using a semi-solid support that can shift between sol and gel states, allowing for minimal handling of primary cells and testing in three-dimensional cultures, enabling the simultaneous loading of compounds and cells, and identifying compounds that modify cellular phenotypes through phase shifts and imaging-based testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional methods are used to test compound influences on cells, then testing can be performed, but multiple handling steps are required which reduce cell viability and increase complexity
Solution Approach 1:
The patent combines compound storage and cell culture functions into a single integrated microtiter plate system. The support structure holds both compounds and cells simultaneously, eliminating the need for separate handling steps between compound addition and cell culture, thus improving efficiency while reducing operational complexity.
Solution Approach 2:
Compounds are pre-loaded into the support structure before cells are added. This preliminary action allows compounds to be ready for immediate use when cells are introduced, reducing the number of handling steps required during the actual testing process and minimizing cell manipulation.
2Reliability
If conventional two-dimensional cell cultures are used, then testing is simpler, but the cells do not accurately recapitulate in vivo behavior
Solution Approach 1:
The patent transitions from conventional two-dimensional cell culture to three-dimensional cell culture within the microtiter plate wells. This dimensional change enables cells to form spheroids or organoid structures that better mimic in vivo physiology, improving reliability while the microtiter plate format keeps the overall system manageable.
Solution Approach 2:
The support structure is nested within the microtiter plate, creating a hierarchical system where the support holds compounds and cells in a three-dimensional configuration. This nested arrangement enables complex 3D cell culture while maintaining the simplicity and standardization of the microtiter plate format.
3Productivity
If primary cells are extensively handled to perform multiple testing steps, then comprehensive testing can be performed, but cell material is lost and viability decreases
Solution Approach 1:
The system merges compound storage, cell culture, and testing functions into a single integrated platform. This consolidation allows comprehensive testing to be performed without transferring cells between multiple containers or performing repeated handling operations, thereby maintaining cell material and viability while achieving high testing throughput.
Solution Approach 2:
The microtiter plate system serves multiple functions simultaneously: it stores compounds, cultures cells in three dimensions, and enables testing. This multi-functionality eliminates the need for separate operations for each function, reducing cell handling steps and material loss while maintaining high productivity.
4Measurement precision
If compounds are tested individually in separate experiments, then detailed analysis is possible, but time and cell material are consumed inefficiently
Solution Approach 1:
The system segments the testing platform into multiple independent wells within a single microtiter plate, with each well capable of holding different compounds and cell combinations. This segmentation allows detailed individual compound analysis while enabling parallel testing of multiple compounds simultaneously, thereby maintaining measurement precision while dramatically reducing total testing time.
Solution Approach 2:
The integrated system allows continuous testing of multiple compounds in parallel within the same cell culture environment. Cells can be exposed to different compounds simultaneously in different wells, maintaining continuous useful action rather than requiring sequential testing, thus reducing time loss while preserving detailed compound analysis capability.
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 allows for efficient testing of compound influences on cellular systems with minimal cell handling, maintaining in vivo-like behavior, and identifying effective compounds for cancer treatment by reducing unnecessary handling steps and preserving cell viability.
Implementation Method 1
providing a cell-compatible support, wherein the support reversible can change between a sol-state and a gel-state
Data Source
AI summary
The present invention relates to a method and tools for extracting information on a compounds influence on a cellular phenotype. The method of the invention may be used as a very efficient procedure for testing the efficacy or resistance of single drugs or combinations of drugs on cells from individual patients. Thus, the methods may be useful for predicting efficacy of a drug on a given patient. The methods are also useful for testing of compounds for toxicity, identifying drug targets for known or novel compounds.