Avian Egg Stem Cell Conditioned Medium for Serum-Free Culture
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for promoting cell proliferation and skin regeneration lack effective, serum-free solutions that prevent contamination and ensure safe, efficient proliferation of human stem cells and skin cells without infectious agent transmission.
Innovation Solution
A medium composition utilizing a conditioned medium from avian egg-derived stem cells, such as pluripotent stem cells, neural stem cells, or embryonic fibroblasts, which are cultured in a serum-free medium to extract growth factors and cytokines, promoting cell proliferation and skin regeneration without the need for animal serums or support cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If animal serums or support cells are used to promote cell proliferation, then cell growth is enhanced, but contamination and infectious agent transmission risks increase
Solution Approach 1:
The patent extracts and utilizes specific growth factors (EGF, bFGF, TGF-β1, IGF-1) and cytokines from avian egg-derived stem cell conditioned medium, removing the need for animal serums and support cells while maintaining cell proliferation benefits. This extraction approach eliminates contamination risks associated with serum-based media.
Solution Approach 2:
The patent employs conditioned medium from avian egg-derived stem cells as an intermediary substance that mediates cell proliferation without direct contact between human cells and potential contaminants. The conditioned medium serves as a safe bridge, transferring growth-promoting factors while blocking harmful agents.
2Productivity
If feeder cells are used to support stem cell growth, then proliferation is maintained, but the complexity of the culture system increases and contamination risks arise
Solution Approach 1:
The patent removes feeder cells from the culture system by extracting and applying growth factors and cytokines directly to the culture medium. This simplification eliminates the need for maintaining a separate feeder cell line while preserving the proliferative support function.
Solution Approach 2:
The patent enables stem cells to proliferate using only the conditioned medium containing growth factors, without requiring feeder cells to provide support. The system becomes self-sufficient, with the conditioned medium alone providing all necessary proliferative signals.
3Productivity
If conventional cell culture methods are used, then cell proliferation is achieved, but skin regeneration and wrinkle improvement effects are insufficient
Solution Approach 1:
The patent creates a composite culture medium by combining conditioned medium from avian egg-derived stem cells with specific growth factors (EGF, bFGF, TGF-β1, IGF-1) and cytokines. This composite medium provides both proliferation support and enhanced skin regeneration effects that conventional media cannot achieve.
Solution Approach 2:
The patent changes the compositional parameters of the culture medium by incorporating specific growth factors and cytokines at optimized concentrations. This parameter optimization enhances both cell proliferation and skin regeneration effects, addressing the insufficiency of conventional media.
Data Source
AI summary
The present invention relates to a medium composition for cell proliferation, skin regeneration, and wrinkle improvement that contains a conditioned medium of pluripotent stem cells (PSCs), neural stem cells (NSCs), and embryonic fibroblasts (FBs) as cells isolated from avian eggs as an active ingredient. Specifically, the conditioned medium of egg cells can fundamentally block contamination due to the use of animal serums, exhibits a proliferation effect of various cells containing human stem cells and skin cells without the possibility of transmission by infectious agents between heterogeneous species due to the use of support cells, and exhibits significant skin regeneration or wrinkle improvement effects, and thus the conditioned medium of egg cells can be usefully used for a medium composition for cell proliferation and a cosmetic composition for skin regeneration or wrinkle improvement.