Fatty Acid Cryopreservation Medium for Cell Viability
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Solution Overview
Problem
Current cryopreservation methods for regenerative medicine products face challenges in minimizing cell death and maintaining quality during storage, particularly in central allogeneic regenerative medicine, where cells from a donor are cultured and processed centrally for use in patients, necessitating a cryopreservation technique that ensures high cell viability and quality after thawing.
Innovation Solution
A composition for cryopreservation containing fatty acids or fatty acid esters is used to immerse cells before freezing, which helps in preserving cells in a three-dimensional form, reducing cell death and maintaining cell viability and differentiation capabilities post-thawing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cryopreservation methods using serum and DMSO are employed, then cells can be stored and transported, but cell death increases and quality control becomes difficult
Solution Approach 1:
The patent removes serum and DMSO from the cryopreservation medium, extracting the harmful components while retaining the essential cryopreservation function. The serum-free formulation eliminates biological contamination risks and immunogenic substances, while the DMSO-free approach reduces cell toxicity and death.
Solution Approach 2:
The invention changes the chemical composition parameters of the cryopreservation medium by replacing traditional serum-based components with a defined chemical mixture containing amino acids, vitamins, and other essential nutrients. This parameter change maintains cell viability while eliminating harmful effects of conventional components.
2Object-affected harmful factors
If serum-free chemically-defined medium is used, then contamination risks are minimized, but cryopreservation quality and cell recovery are compromised
Solution Approach 1:
The patent creates a composite cryopreservation medium combining multiple chemically-defined components including amino acids, vitamins, minerals, and growth factors. This composite formulation provides all necessary nutrients for cell survival during freezing and thawing while maintaining the serum-free, contamination-free advantage.
Solution Approach 2:
The invention optimizes the concentration and composition of individual chemical components in the serum-free medium to enhance cell recovery. Specific parameters such as amino acid concentrations, vitamin types, and additive combinations are adjusted to improve cryopreservation effectiveness without compromising the chemically-defined nature of the medium.
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 use of fatty acid-based compositions effectively reduces cell death and ensures good cell recovery and viability after cryopreservation and thawing, maintaining the cells' therapeutic properties, such as differentiation abilities, without relying on serum or other contaminants.
Implementation Method 1
a composition for cryopreservation of cells, the composition containing a fatty acid
Implementation Method 2
The use of fatty acid-based compositions effectively reduces cell death and ensures good cell recovery and viability after cryopreservation and thawing
Data Source
AI summary
An object is to achieve cryopreservation that yields no or few dead cells and that ensures good quality. A composition for cryopreservation in accordance with an aspect of the present invention is a composition for cryopreservation of cells, and contains a fatty acid.