Cleavable Linker Resin Beads for Cellular Response Screening
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Solution Overview
Problem
Current methods for screening combinatorial libraries in drug discovery are inefficient in testing large numbers of compounds for specific physiological effects on cells within a short time frame, requiring re-synthesis and testing in cell-based or in-vivo systems, and lack effective means for identifying compounds influencing cellular processes.
Innovation Solution
A method involving attaching living cells to resin beads linked with test compounds via a cleavable linker, releasing the compounds to influence cellular responses, and selecting beads with modified cells to identify the active compounds, using reporter systems for detection and subsequent chemical synthesis of the compounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If compounds are synthesized and tested in traditional cell-based or in-vivo systems, then testing accuracy and physiological relevance are improved, but time consumption and productivity are worsened
Solution Approach 1:
The invention segments the cell population into distinct subpopulations based on their response to compounds. By using flow cytometry to detect and sort cells displaying specific cellular responses, the method separates responsive cells from non-responsive ones, enabling parallel testing of multiple compounds simultaneously on divided cell populations rather than sequential testing of individual cells
Solution Approach 2:
The invention creates a simplified model system that copies key cellular response features without requiring complete physiological replication. By using reporter cells with specific markers and simplified assay readouts, the method captures essential cellular responses while dramatically reducing the complexity and time required for testing compared to full in-vivo systems
2Quantity of substance
If large numbers of compounds are screened using traditional methods, then comprehensive coverage is improved, but time consumption increases
Solution Approach 1:
The invention performs preliminary actions by pre-labeling cells with fluorescent markers and pre-preparing compound libraries before the actual screening begins. Cells are prepared with reporter systems and sorting capabilities in advance, allowing rapid parallel testing of multiple compounds without time-consuming setup during the screening process
Solution Approach 2:
The invention maintains continuous useful action through automated flow cytometry-based screening that can process multiple compounds simultaneously and continuously. The system enables uninterrupted testing of large compound libraries through automated detection and sorting operations, eliminating idle time between compound assessments
3Reliability
If compounds are released from resin beads to test cellular effects, then physiological relevance is improved, but control over release timing and conditions becomes more difficult
Solution Approach 1:
The invention introduces resin beads as an intermediary carrier that temporarily holds compounds before release. The beads serve as a controlled intermediate step between compound storage and cellular target, allowing standardization of compound delivery while maintaining physiological relevance through controlled release mechanisms that can be triggered by specific stimuli
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 rapid identification and selection of compounds modifying cellular responses, facilitating the drug discovery process by efficiently testing large numbers of compounds for physiological effects and identifying active compounds modifying cellular processes.
Implementation Method 1
resin beads linked with test compounds via a cleavable linker, releasing the compounds
Data Source
AI summary
The present invention relates to methods for identifying compounds capable of modulating a cellular response. The methods involve attaching living cells to solid supports comprising a library of test compounds. The test compounds are linked to the solid support via cleavable linkers and may thus be released from the solid supports. Solid supports comprising cells, wherein the cellular response of interest has been modulated are selected and the test compound of the solid support can then be identified. The cellular response may for example be changes in complex formation between proteins.