Pseudo Microgravity Culture of Bone Marrow Stromal Cells
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Solution Overview
Problem
Current methods for transplanting bone marrow stromal cells (BMSCs) or mesenchymal stem cells (MSCs) for central nervous system diseases face challenges such as immunological rejections, cell supply limitations, and ethical concerns, with intravenous transplantation methods requiring cell proliferation in an undifferentiated state to improve survival ratios and therapeutic effects.
Innovation Solution
A culture method involving multi-axis rotation to create a pseudo microgravity environment for BMSCs or MSCs, reducing cell size and maintaining an undifferentiated state, which enhances the survival ratio and therapeutic efficacy of intravenous cell transplantation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bone marrow stromal cells or mesenchymal stem cells are cultured in conventional gravity environment, then cells can be maintained in undifferentiated state, but cell size becomes large which reduces survival ratio and therapeutic effect in intravenous transplantation
Solution Approach 1:
The patent changes the physical parameter of gravity from 1G (conventional gravity) to microgravity conditions using a clinostat device. This parameter change enables cells to maintain undifferentiated state while reducing cell size, thereby improving survival ratio and therapeutic effect in intravenous transplantation.
2Reliability
If embryonic stem cells or neural stem cells are transplanted into the brain, then nerve regeneration can be achieved, but immunological rejections and ethical problems occur
Solution Approach 1:
The patent uses bone marrow stromal cells or mesenchymal stem cells as alternative transplant materials that can be obtained from the patient's own bone marrow. These cells are easier to obtain, have lower immunological rejection risk, and cause fewer ethical problems compared to embryonic or neural stem cells, while still achieving nerve regeneration.
3Object-affected harmful factors
If bone marrow stromal cells are obtained from bone marrow, then immunological rejections are reduced and ethical problems are minimized, but cell proliferation and distribution to target areas is insufficient
Solution Approach 1:
The patent performs preliminary in vitro culture of bone marrow stromal cells or mesenchymal stem cells under microgravity conditions before transplantation. This preliminary action promotes cell proliferation and maintains cells in undifferentiated state with reduced size, thereby improving cell distribution and survival ratio after intravenous transplantation while maintaining low immunological rejection risk.
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 pseudo microgravity culture method effectively reduces cell size and suppresses differentiation, leading to improved survival ratios and therapeutic effects in central nervous system disease treatments by facilitating better cell distribution and integration in target areas.
Implementation Method 1
by culturing bone marrow stromal cells under a pseudo micro-gravity environment generated by multi-axis rotation
Data Source
AI summary
In a culture method of the present invention, by culturing bone marrow stromal cells or mesenchymal stem cells under a pseudo micro-gravity environment generated by multi-axis rotation, bone marrow stromal cells or mesenchymal stem cells having an average cell size smaller than that before the culture are obtained. The bone marrow stromal cells or mesenchymal stem cells thus cultured are suitable as graft cells for a central nerve diseases therapy.