Simultaneous iPSC Reprogramming and Genome Engineering
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Solution Overview
Problem
The generation of induced pluripotent stem cells (iPSCs) is a time-consuming and expensive process, and existing methods require further genetic modification and extensive analysis, making them inefficient and costly.
Innovation Solution
An in vitro method involving the introduction of a first nucleic acid molecule for integration into somatic cells and an extra-chromosomal genetic element expressing reprogramming factors, followed by culturing under specific conditions to produce iPSCs with the first nucleic acid integrated but without the extra-chromosomal element, allowing for simultaneous reprogramming and engineering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional sequential methods are used to generate iPSCs followed by genetic modification, then the process ensures proper reprogramming and genetic engineering, but the time and cost increase significantly
Solution Approach 1:
The patent combines reprogramming and genetic engineering into a single integrated process by introducing both reprogramming factors and genetic modifications simultaneously through viral vectors, eliminating the need for sequential operations and reducing overall production time while maintaining reliability of both reprogramming and genetic engineering
2Ease of manufacture
If multiple separate steps are used for reprogramming and genetic modification, then each step can be optimized independently, but the process complexity and cost increase
Solution Approach 1:
The patent merges reprogramming and genetic engineering into a single integrated process using viral vectors that deliver both reprogramming factors and genetic modifications simultaneously, reducing process complexity and steps required while maintaining the ability to optimize each component independently through vector design
Solution Approach 2:
The viral vector system serves multiple functions simultaneously: delivering reprogramming factors, introducing genetic modifications, and enabling selection of successfully modified cells, thereby reducing the number of separate processes needed while maintaining ease of optimization for each function
3Measurement precision
If traditional methods are used for generating genetically engineered iPSCs, then proper characterization can be performed, but the cost and time requirements become prohibitive
Solution Approach 1:
The patent incorporates selection markers and tracking elements into the viral vectors before infection, enabling preliminary identification and selection of successfully reprogrammed and genetically modified cells during the process itself, rather than requiring extensive post-processing characterization, thereby maintaining measurement precision while dramatically improving productivity
Data Source
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AI summary
Methods for producing engineered induced pluripotent stem (iPS) cells are provided comprising introducing a first nucleic acid into somatic cells for integration into their genome and reprogramming the cells to produce engineered iPS cells having the nucleic acid integrated into their genome. For example, in certain aspects the cells are reprogrammed by introduction of a genetic element that expresses one or more reprogramming factor and culturing of the cells under conditions sufficient to produce reprogrammed cells.