Stem Cell Proliferation Control via Dynamic Temperature Shifts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for culturing stem cells in automatic devices without passaging struggle to control stem cell proliferation, leading to excessive growth, increased costs, and waste due to unpredictable cell growth rates and the inability to manage cell numbers effectively.
Innovation Solution
The method involves culturing stem cells under a hibernation condition, specifically at temperatures between 20°C to 34°C, which suppresses cell proliferation. This is followed by a temperature shift to 36°C to 38°C to allow the cells to reach a predetermined number, enabling precise control over stem cell production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If stem cells are cultured in an automatic culture device without passaging, then automation and ease of operation are improved, but proliferation control deteriorates leading to excessive cell growth
Solution Approach 1:
The patent applies parameter changes by controlling culture temperature within a specific range (20-34°C) to suppress stem cell proliferation. This temperature parameter modification allows the automatic culture device to maintain automated operation while achieving effective control over cell number increase, resolving the contradiction between automation and proliferation control.
2Productivity
If stem cells are cultured at normal temperature (36-38°C), then cell proliferation rate increases improving productivity, but cell number becomes uncontrollable increasing costs and waste
Solution Approach 1:
The patent applies dynamics by enabling flexible temperature adjustment during the culture process. The culture temperature can be dynamically changed from the suppression range (20-34°C) to the proliferation range (36-38°C) based on the desired cell quantity and time requirements. This dynamic control allows optimization of both productivity and waste reduction by matching temperature conditions to specific cultivation stages and goals.
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 allows for controlled stem cell proliferation and timely production of a predetermined amount of stem cells, reducing costs and minimizing waste, while maintaining the viability and functionality of the cells for therapeutic applications.
Implementation Method 1
a temperature controller that controls a temperature of the culture vessel... the temperature controller controls the temperature to culture the stem cells under a hibernation condition
Implementation Method 2
a temperature controller that controls a temperature of the culture vessel... the temperature controller controls the temperature to culture the stem cells under a hibernation condition and a normal culture condition
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present disclosure provides a method for causing stem cells to proliferate while suppressing proliferation. In one aspect, the present disclosure provides a method for causing stem cells to proliferate while suppressing proliferation, the method including a step of culturing the stem cells under a hibernation condition of the stem cells. In another aspect, the present disclosure provides a method for producing a predetermined amount of stem cells in a timely manner, the method including: a step (a) of culturing the stem cells under a hibernation condition of the stem cells; and a step (b) of culturing the stem cells to a predetermined amount of the stem cells at about 36°C to 38°C.