Urine Stem Cells and Alginate Microspheres for Skeletal Muscle Regeneration
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Solution Overview
Problem
The shortage of viable cell sources for regenerative medicine applications, such as treating urinary incontinence and vesicoureteral reflux, limits the supply and effectiveness of current treatments, necessitating alternative cell sources and improved strategies for cell administration.
Innovation Solution
The use of urine-derived stem cells (USCs) administered to the urethra, combined with growth factors encapsulated in alginate microspheres, promotes the differentiation of USC into skeletal muscle cells, enhancing tissue regeneration and vascularization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If alternative cell sources are used to overcome donor shortage, then cell supply availability improves, but cell differentiation efficiency and tissue regeneration quality may worsen
Solution Approach 1:
Growth factors serve as intermediaries between the urine-derived stem cells and the target tissue, mediating the differentiation process. The growth factors (VEGF, PDGF, HGF, IGF, NGF, FGF) are delivered via polymeric microspheres to guide USC differentiation into skeletal muscle cells, ensuring reliable tissue regeneration despite using alternative cell sources
Solution Approach 2:
The patent changes the chemical and biological parameters of the cell microenvironment by introducing specific growth factors at controlled concentrations and release rates. This parameter modification directs the differentiation pathway of urine-derived stem cells toward skeletal muscle lineage, ensuring high-quality tissue regeneration
2Productivity
If growth factors are administered to promote stem cell differentiation, then tissue regeneration efficiency improves, but treatment complexity and manufacturing difficulty worsen
Solution Approach 1:
The treatment system is segmented into distinct functional components: urine-derived stem cells as the regenerative source, polymeric microspheres as the delivery vehicle, and multiple growth factors as the differentiation inducers. This segmentation allows each component to be optimized independently while simplifying the overall treatment protocol
Solution Approach 2:
Growth factors are pre-loaded into polymeric microspheres before administration, creating a controlled release system that automatically delivers the differentiation-inducing agents at the appropriate time and location. This preliminary preparation simplifies the treatment protocol by eliminating the need for multiple separate administrations
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 effectively induces USC differentiation into myogenic and endothelial lineages, improving tissue repair and reducing the need for invasive cell sourcing, with controlled release of growth factors enhancing cell survival and tissue regeneration.
Implementation Method 1
the growth factors are released over a period of from 2 to 6 weeks (e.g., about 4 weeks)
Data Source
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AI summary
Provided herein are methods of treating a subject in need of treatment for a urological condition including administering urine stem cells to said subject in a treatment effective amount; and, in conjunction therewith, administering growth factors to said subject in an amount effective to promote differentiation of said stem cells into skeletal muscle cells. Compositions useful for the same are also provided.