Cell Reprogramming via Mechanical Constriction
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Solution Overview
Problem
Current methods for cell reprogramming, such as induced pluripotent stem cell differentiation and somatic cell transdifferentiation, are inefficient and costly, with existing techniques like lentiviral vectors posing risks of insertional mutagenesis and cytotoxicity, and methods like electroporation affecting cell health.
Innovation Solution
A method involving passing a cell suspension through a constriction to deform cells, allowing reprogramming factors like nucleic acids or transcription factors to enter and reprogram cells into neurons, with parameters like pressure and cell density optimizing factor delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If lentiviral vectors are used for reprogramming, then reprogramming efficiency is improved, but the risk of insertional mutagenesis increases
Solution Approach 1:
The patent extracts the reprogramming function from viral vectors and implements it through a mechanical constriction device that delivers reprogramming factors without viral integration, thereby eliminating insertional mutagenesis while maintaining reprogramming efficiency
Solution Approach 2:
The patent uses a mechanical constriction as an intermediary device to deliver reprogramming factors into cells, replacing the viral vector intermediary and avoiding the harmful genetic integration associated with lentiviral delivery
2Productivity
If electroporation or lipofection is used for delivery, then reprogramming factor delivery is improved, but cell health and viability deteriorate
Solution Approach 1:
The patent replaces the harsh electrical (electroporation) or chemical (lipofection) mechanical systems with a gentle physical constriction mechanism that achieves factor delivery without the cytotoxic effects of high voltage or chemical detergents
Solution Approach 2:
The patent changes the delivery parameters from extreme conditions (high voltage, chemical exposure) to mild mechanical constriction parameters that preserve cell health while enabling efficient factor delivery
3Productivity
If conventional iPSC differentiation methods are used, then cell production is achieved, but the process time increases and cell heterogeneity worsens
Solution Approach 1:
The patent applies preliminary reprogramming action through constriction-induced factor delivery that directly programs cells toward specific lineages, bypassing the prolonged multi-stage differentiation process and reducing both time and heterogeneity
Solution Approach 2:
The patent changes the differentiation parameters by using mechanical constriction to directly induce lineage specification, transforming a slow, stochastic differentiation process into a faster, more controlled reprogramming process
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 enhances the efficiency and cost-effectiveness of cell reprogramming by increasing reprogramming factor delivery into cells, reducing cytotoxicity, and improving cell viability, enabling the production of consistent neuron populations for therapeutic applications.
Implementation Method 1
passing the cell suspension through the constriction under the one or more parameters deforms one or more cells of the population of cells
Implementation Method 2
deforms one or more cells of the population of cells, and thereby, causing a perturbation in the cell membrane
Data Source
AI summary
The present disclosure provides methods for reprogramming a cell, wherein the method comprises passing a cell suspension comprising the cell and a reprogramming factor through a constriction, wherein the constriction deforms the cell, thereby causing a perturbation of the cell such that the reprogramming factor enters the cell.