Factor-Introduced Cell Culturing Without Cloning
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Solution Overview
Problem
Current methods for culturing factor-introduced cells are inefficient and require cloning and manual isolation of colonies, which can lead to variations in cell populations and reduced scalability.
Innovation Solution
A method for culturing factor-introduced cells that involves seeding and passaging cells without cloning, allowing for the mixing of cells from different single cell sources and eliminating the need for manual isolation of colonies, enabling efficient expansion and differentiation into various cell types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If cloning and manual isolation of colonies is performed, then cell population uniformity is improved, but productivity deteriorates due to time-consuming manual operations
Solution Approach 1:
The patent extracts and removes the cloning step from the traditional iPS cell culturing process. By seeding factor-introduced cells without cloning, the manual isolation of colonies is eliminated, dramatically improving productivity while maintaining cell quality through alternative quality control mechanisms.
Solution Approach 2:
The patent enables factor-introduced cells to self-organize and form stable cell populations without manual intervention. By allowing cells to be seeded directly and mixed without cloning, the system serves itself through natural cell behavior rather than requiring operator intervention for colony isolation.
2Reliability
If cloning is performed to isolate individual colonies, then cell line purity is improved, but device complexity increases due to additional manual handling steps
Solution Approach 1:
The patent removes the cloning operation from the workflow, eliminating the need for manual colony isolation and reducing operational complexity. The cell line purity is maintained through direct seeding of factor-introduced cells without requiring additional manual handling steps.
Solution Approach 2:
Instead of isolating individual colonies and then expanding them (traditional approach), the patent inverts the process by directly seeding and expanding factor-introduced cells as a mixed population, which then stabilizes into pure cell lines through natural selection and proliferation.
3Reliability
If manual picking of colonies is performed, then contamination risk is reduced, but loss of time increases due to sequential processing
Solution Approach 1:
The patent enables continuous culturing of factor-introduced cells without interruption for colony picking. By seeding cells directly without cloning, the process maintains continuous useful action, eliminating time losses associated with sequential manual operations while maintaining contamination control through controlled seeding conditions.
Solution Approach 2:
The patent extracts the time-consuming colony picking step from the process, replacing it with direct seeding of factor-introduced cells. This elimination of the intermediate picking step reduces both time loss and potential contamination risks from repeated manual handling.
4Manufacturing precision
If factor-introduced cells are cultured without mixing, then cell differentiation uniformity is improved, but scalability deteriorates due to limited expansion capacity
Solution Approach 1:
The patent merges multiple factor-introduced cells from different single cell sources into a mixed population. By seeding and mixing these cells together without cloning, the system achieves both scalability through expanded cell numbers and differentiation uniformity through the stabilizing effect of mixed cell interactions.
Solution Approach 2:
The patent changes the cell density and composition parameters by seeding factor-introduced cells at optimized concentrations and mixing them from different sources. This parameter optimization enables both large-scale expansion and uniform differentiation outcomes by controlling initial cell population characteristics.
Data Source
AI summary
According to the present disclosure, there is provided a method for culturing factor-introduced cells, the method including culturing factor-introduced cells and recovering the factor-introduced cells and seeding at least part of the recovered cells in a medium for seeding. In addition, there is provided a method for culturing factor-introduced cells, the method including culturing factor-introduced cells and inducing the factor-introduced cells to somatic cells different from pluripotent stem cells without passaging.