Optogenetic Co-Differentiation Using Wavelength-Specific Recombinases
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Solution Overview
Problem
Existing technologies are unable to co-differentiate cells from the same population into multiple, different cell lineages with high temporal and spatial precision.
Innovation Solution
A method and system utilizing optogenetics and recombinases to control the differentiation of cells into specific lineages by illuminating cells with light at specific wavelengths or using chemical inducers, modulating expression of transcription factors, and employing exogenous nucleic acids with promoters and recombinase recognition sites to excise or invert DNA sequences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If existing differentiation methods are used, then cells can be differentiated into single cell lineages, but co-differentiation into multiple cell lineages with high temporal and spatial precision is not possible
Solution Approach 1:
The patent segments the control of cell differentiation by using multiple independent optogenetic systems, each responsive to different wavelengths of light. This allows separate control of different transcription factors (e.g., MyoD for muscle, PPARĪ³ for adipocytes) with independent light stimuli, enabling precise temporal and spatial control over multiple differentiation pathways simultaneously
Solution Approach 2:
The patent employs a universal optogenetic platform that can direct cell differentiation into multiple lineage types using a common system architecture. The same basic optogenetic components (light-sensitive transcription factors, light delivery system) are used across different differentiation pathways, providing multi-functionality while maintaining precision control
2Adaptability or versatility
If multiple transcription factors are expressed simultaneously, then multiple cell lineages can be targeted, but precise control over which cells differentiate into which lineage is lost
Solution Approach 1:
The patent applies local quality by using spatially patterned light delivery to activate optogenetic transcription factors in specific locations within the cell population. Different regions receive different wavelengths or intensities of light, creating local differentiation zones with distinct cell lineages while maintaining overall population control
Solution Approach 2:
The patent implements dynamic control by using temporal modulation of light stimuli to regulate differentiation timing. Light pulses can be applied sequentially or simultaneously with varying durations and intensities, allowing dynamic adjustment of which cells differentiate into which lineages based on real-time conditions
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 precise and simultaneous co-differentiation of cells into multiple cell types, such as adipocytes, myocytes, and chondrocytes, with spatial and temporal control, using light-activatable recombinases and chemical inducers.
Implementation Method 1
The methods and systems described herein utilize optogenetics and recombinases to control the differentiation of cells into specific lineages by illuminating cells with light at specific wavelengths
Implementation Method 2
using light-activatable recombinases and chemical inducers
Data Source
AI summary
Provided herein are methods and systems for co-differentiating differentiatable cells in a population of differentiatable cells into two or more different cell lineages. In some embodiments, the methods and systems use light- or chemically-activatable recombinases to drive expression of one or more transcription factors and/or differentiation factors.