Muscle-Derived Progenitor Cell Differentiation Without Cell Separation
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Solution Overview
Problem
Existing methods for obtaining differentiated cells from mesenchymal stem cells, such as bone marrow-derived cells, are invasive, painful, and yield low production, necessitating alternative sources like muscle-derived progenitor cells that can be obtained without separation techniques.
Innovation Solution
A method involving placing a muscle microbiopsy in a culture medium, allowing cells to grow, reaching confluency, and differentiating them in a suitable medium without prior separation techniques, utilizing culture mediums like DMEM/F12 with fetal bovine serum and antibiotics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bone marrow-derived mesenchymal stem cells are used, then differentiated cells can be obtained, but the sampling process is painful and production yield is low
Solution Approach 1:
The patent applies universality by using muscle tissue as a multi-functional source that can provide both large quantities of stem cells and avoid painful sampling. Muscle-derived progenitor cells serve the same function as bone marrow-derived cells (differentiating into multiple lineages) while eliminating the harmful sampling procedure, thus achieving both high productivity and patient comfort.
Solution Approach 2:
The patent employs copying by using muscle-derived progenitor cells as an alternative source that replicates the functionality of bone marrow-derived mesenchymal stem cells. Instead of relying on the traditional bone marrow source, the invention copies the stem cell function from muscle tissue, achieving similar differentiation capabilities without the drawbacks of invasive sampling.
2Reliability
If separation techniques are used to isolate mesenchymal stem cell populations, then cell purity is improved, but the process complexity increases
Solution Approach 1:
The patent applies extraction by directly isolating muscle-derived progenitor cells from muscle tissue through a simplified process that extracts the needed cells without requiring complex separation techniques. The method takes out the essential stem cell population from the muscle sample through culture expansion, achieving sufficient purity without elaborate separation steps.
Solution Approach 2:
The patent inverts the traditional approach by not starting with pure stem cells and then differentiating them, but rather by directly using muscle-derived progenitor cells that inherently possess differentiation capacity. This inversion eliminates the need for complex separation techniques while maintaining cell purity and functionality.
3Device complexity
If muscle-derived progenitor cells are used without separation techniques, then process complexity is reduced, but cell purity may be compromised
Solution Approach 1:
The patent applies self-service by allowing muscle-derived progenitor cells to self-differentiate and self-organize in culture without requiring external separation techniques. The cells naturally exhibit their differentiation potential when provided with appropriate culture conditions, achieving both process simplicity and functional purity through their inherent biological properties.
Data Source
AI summary
The present invention relates to a method for preparing differentiated mammalian cells comprising collecting muscle microbiopsy, placing the sample in a cell culture medium, collecting and growing the cells and differentiating them in suitable differentiation medium.