Culture Supernatant Biocompatibility via Electrolyte Medium
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Culture supernatant preparations often contain medium components that can cause biocompatibility issues and reduce the effectiveness of administered therapies, as they are not designed for human use and may contain contaminants.
Innovation Solution
Using an electrolyte solution, such as an infusion liquid, as a medium in the final culturing step to produce a culture supernatant with higher biocompatibility and therapeutic efficacy, which includes a calcium ion and a buffering agent, and preferably no amino acids or vitamins, to minimize side effects and promote the expression of specific genes or proteins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional cell culture medium is used in the final culturing step, then cells can be cultured effectively, but the culture supernatant preparation has poor biocompatibility and may cause adverse reactions when administered
Solution Approach 1:
The patent changes the chemical composition parameters of the culture medium by replacing conventional media with electrolyte solutions (physiological saline, Ringer's solution, or balanced salt solutions) that have compositions similar to human body fluids. This parameter change eliminates harmful components while maintaining cell culture functionality, thereby improving biocompatibility and reducing adverse reactions when the culture supernatant is administered.
2Object-affected harmful factors
If a serum-free or animal-free medium is used to reduce contaminants, then fewer components from organisms other than human are present, but the medium is still not optimized for therapeutic administration
Solution Approach 1:
The patent employs electrolyte solutions that are simple, inexpensive, and readily available medical products designed for short-term therapeutic use. These solutions serve as disposable culture media for the final culturing step, eliminating the need for complex serum-containing media while ensuring the culture supernatant is safe for administration. The simplicity and medical-grade nature of these electrolyte solutions directly improve biocompatibility.
3Quantity of substance
If a medium designed for cell culture is used, then cells can be cultured, but the culture supernatant does not maximize therapeutic protein expression
Solution Approach 1:
The patent modifies the chemical environment parameters by using electrolyte solutions with specific ion compositions (Na+, K+, Ca2+, Mg2+, Cl-, HCO3-) that mimic physiological conditions. These parameter changes create an optimal environment that enhances cellular metabolism and secretion activity, thereby maximizing the quantity of therapeutic proteins in the culture supernatant while using a medium that is also suitable for therapeutic administration.
Data Source
AI summary
To provide a culture supernatant preparation which has excellent biocompatibility and contains a large quantity of specific genes or proteins. A method for producing the culture supernatant preparation including: a first culturing step of culturing cells to a confluent state using a first medium; a second culturing step of culturing the cells using a second medium that is different from the first medium after the first culturing step; and a culture supernatant preparation obtaining step of obtaining the culture supernatant preparation including the second medium after the second culturing step, the second medium including a calcium ion and a buffering agent.