Barcoded Cell Screening for Toxic Protein Identification
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing genetic and small molecule screening methods are costly, labor-intensive, and non-scalable, making it difficult to effectively identify candidate compounds or treatment modalities for diseases associated with toxic proteins.
Innovation Solution
A method using cell proliferation and differing growth rates between cell lines or strains to screen for candidate compounds, where cells are genetically modified to produce an exogenous protein associated with a disease state, and nucleic acid barcodes are used to track cell growth and identify compounds that rescue or inhibit the toxic effect of the protein.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional genetic and small molecule screening methods are used, then candidate compounds or treatment modalities can be identified, but the process becomes costly and labor-intensive
Solution Approach 1:
The patent combines multiple screening dimensions (genetic variations, small molecule treatments, and phenotypic outcomes) into a single pooled screening system. Multiple cell lines with different barcodes are mixed together and screened simultaneously, allowing parallel evaluation of numerous candidates without requiring separate assays for each, thereby dramatically improving throughput while maintaining identification accuracy
Solution Approach 2:
The barcoding system serves multiple functions simultaneously: it enables cell line identification, tracks proliferation rates, and allows multiplexed screening of both genetic and pharmacological interventions. This universal approach replaces multiple specialized screening methods with a single integrated platform that can handle diverse screening needs
2Reliability
If traditional screening methods are used, then candidate compounds can be identified, but the process is non-scalable
Solution Approach 1:
The patent introduces a new dimension to screening by using nucleic acid barcodes as molecular identifiers that can be detected through sequencing. This dimensional shift from traditional phenotypic readouts to molecular barcode analysis enables high-throughput parallel screening of thousands of cell lines simultaneously, making the system scalable without proportionally increasing experimental complexity
3Reliability
If cells are genetically modified to produce exogenous proteins, then disease models can be studied, but the cell growth rate is reduced
Solution Approach 1:
The patent converts the harmful effect of reduced cell growth caused by toxic protein expression into a beneficial screening signal. Cells expressing disease-associated proteins grow more slowly, but this growth defect becomes the readout for identifying compounds that rescue toxicity. The barcode system quantifies this growth difference, allowing identification of protective compounds while maintaining accurate disease modeling
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 the efficient identification of compounds that counteract the toxic effects of disease-associated proteins by tracking changes in cell growth rates and nucleic acid barcode representation, providing a scalable and cost-effective screening method.
Implementation Method 1
The nucleic acid barcode may be sequenced and counted to determine the number of cells representing the proliferating cell type or the altered cell type
Implementation Method 2
the exogenous protein is toxic to the cell type such that it results in reduced or slowed or inhibited growth of the cell type
Data Source
AI summary
A method of screening is provided including providing a combination of a plurality of proliferating cell types wherein each proliferating cell type has a unique associated barcode within its genome that is different from other proliferating cell types of the plurality and wherein each proliferating cell type includes an exogenous gene that when expressed produces an associated phenotype to the proliferating cell type which alters proliferation of the cell type, introducing a perturbation to one or more of the plurality of proliferating cell types, inducing expression of one or more of the exogenous genes, determining the relative number of unique associated barcodes after a period of proliferation, and comparing the relative number of unique associated barcodes to a control relative number of unique associated barcodes to indicate the effect of the perturbation on the one or more of the plurality of proliferating cell types.