Stem Cell Conditioned Medium Induces ZO-1 for Skin Firming
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Solution Overview
Problem
Current methods for treating sagging and wrinkling skin are expensive, invasive, and often require expert intervention, with limited effectiveness in reducing skin aging without injury, and existing growth factors are not suitable for non-flaking or non-injured skin.
Innovation Solution
A stem cell conditioned medium from human Wharton's jelly-derived mesenchymal stem cells is used to induce ZO-1 protein expression in skin cells, created by culturing stem cells in a specific growth medium and sub-culturing them multiple times to enhance the expression of tight junction proteins, promoting skin regeneration, repair, and firming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional methods (laser facelift, injections) are used to treat sagging skin, then skin firmness can be improved, but the treatment becomes expensive and requires expert intervention
Solution Approach 1:
The patent extracts the essential active components (growth factors, cytokines, extracellular vesicles) from stem cells and delivers them through topical application of stem cell-conditioned medium or isolated exosomes, eliminating the need for invasive procedures while maintaining therapeutic effectiveness for skin firmness
Solution Approach 2:
The patent uses stem cell-conditioned medium and isolated exosomes as a simplified copy or surrogate of the complex stem cell therapy, delivering the same bioactive molecules through a less invasive topical application method that is more accessible and cost-effective
2Reliability
If protein growth factors are used to treat skin aging, then wound healing can be promoted, but they cannot reduce aging of non-injured skin
Solution Approach 1:
The patent formulates stem cell-conditioned medium containing a comprehensive mix of growth factors (EGF, FGF, TGF-β), cytokines, and extracellular vesicles that can simultaneously address multiple skin concerns including wound healing, anti-aging, and firmness improvement, making it universally applicable to both injured and non-injured skin
Solution Approach 2:
The patent creates a composite formulation combining multiple bioactive components (growth factors, cytokines, extracellular vesicles, and conditioning medium) that work synergistically to provide both wound healing and anti-aging benefits, expanding applicability beyond单一功能
3Quantity of substance
If stem cells are obtained from adult bone marrow, then MSCs can be harvested, but invasive procedures cause pain and discomfort
Solution Approach 1:
The patent extracts stem cells from the umbilical cord Wharton's jelly, a byproduct of birth that is readily available and contains abundant MSCs, eliminating the need for invasive bone marrow aspiration and associated pain while providing sufficient cell quantities for therapeutic use
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
The stem cell conditioned medium effectively increases ZO-1 protein activation, promoting cell growth, arrangement, and wound healing, thereby improving skin firmness and elasticity, addressing the challenges of sagging skin and wrinkles while being less invasive and more accessible than traditional methods.
Implementation Method 1
The conditioned medium obtained from human Wharton's jelly-derived mesenchymal stem cells (WJMSCs) conditioned basal medium can effectively increase the activation of tight junction protein Zonula occludens-1 (ZO-1) in skin cells
Implementation Method 2
recent studies showed that human mesenchymal stein cell-derived conditioned medium (MSC-CM) can enhance corneal endothelial cells proliferation
Data Source
AI summary
A use of a stem cell conditioned medium to induce ZO-1 proteins expression for skin regeneration, repair and finning is revealed herein. First, mesenchymal stem cells are cultured in a cell culture dish containing complete growth media, wherein the complete growth media include α-MEM, fetal bovine serum, and human-basic fibroblast growth factors. After mesenchymal stem cells are sub-cultured in the complete growth media for three times, a conditioned medium which can effectively increase the activation of tight junction protein Zonula occludens-1 (ZO-1) can be acquired from the basal medium.