PDGF-BB Acceleration for Mesenchymal Stem Cell Activation
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Solution Overview
Problem
The presence of mesenchymal stem cells in the dermis and subcutaneous fat, and their localization at vascular sites, as well as the factors influencing their increase or decrease with aging, are not well understood, limiting their availability for regenerative and aesthetic medicine.
Innovation Solution
A method involving the acceleration of platelet-derived growth factor-BB (PDGF-BB) expression in vascular endothelial cells to maintain and increase mesenchymal stem cells in the dermis and subcutaneous fat, using retinoic acid and other candidate drugs that enhance PDGF-BB expression, and applying these to the skin to inhibit aging and activate skin metabolism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If mesenchymal stem cells are isolated from bone marrow, then they can be used for regenerative medicine, but the number of available stem cells is extremely limited and the process is complex
Solution Approach 1:
The patent extracts mesenchymal stem cells from a new source (dermis and subcutaneous fat) rather than from bone marrow. This extraction from an accessible tissue source increases the quantity of available stem cells while simplifying the isolation process compared to bone marrow harvesting.
Solution Approach 2:
The patent utilizes the patient's own dermal and adipose tissues as a self-service source of mesenchymal stem cells. This eliminates the need for complex bone marrow aspiration procedures and provides an abundant, accessible source of autologous stem cells for regenerative applications.
2Reliability
If PDGF-BB expression is accelerated in vascular endothelial cells, then mesenchymal stem cell activity is enhanced and skin condition improves, but the mechanism of stem cell localization and aging-related changes is not yet understood
Solution Approach 1:
The patent performs preliminary actions by accelerating PDGF-BB expression in vascular endothelial cells before assessing skin activation effects. This preliminary intervention establishes a causal link between PDGF-BB upregulation and mesenchymal stem cell activation, providing a reliable mechanism for skin regeneration despite gaps in understanding stem cell localization dynamics.
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 identifies a novel skin activator by increasing PDGF-BB levels, enhancing mesenchymal stem cell activity, and improving skin condition by maintaining skin tightness and preventing wrinkles and age spots.
Implementation Method 1
skin activation by acceleration of platelet-derived growth factor-BB (PDGF-BB) activity
Implementation Method 2
acceleration of platelet-derived growth factor-BB (PDGF-BB) expression in vascular endothelial cells
Data Source
AI summary
This method, which screens drugs that activate the skin, is characterized by causing candidate drugs to act on vascular endothelial cells, and selecting drugs that enhance the expression of PDGF-BB by the cells as a skin activation agent.