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Isolation of Human Mesenchymal Stem Cells and their Cultivation on the Porous Bone Matrix
Published on: February 9, 2015
Simplified protocol to isolate, purify, and culture expand mesenchymal stem cells
Sonja Schrepfer1, Tobias Deuse, Claudia Lange
1Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA 94305-5407, USA.
Stem Cells and Development
|March 14, 2007
Summary
Researchers developed a simple protocol to isolate and expand murine bone marrow mesenchymal stem cells (MSCs). Cytokine supplementation boosted MSC proliferation while maintaining their regenerative potential for tissue repair.
Area of Science:
- Stem Cell Biology
- Regenerative Medicine
- Tissue Engineering
Background:
- Mesenchymal stem cells (MSCs) are crucial for regenerative medicine due to their differentiation capabilities.
- Standardized isolation protocols for MSCs are lacking due to the absence of specific surface markers.
- Murine bone marrow is a common source for MSCs in experimental research.
Purpose of the Study:
- To establish a straightforward method for isolating, purifying, and expanding murine bone marrow MSCs.
- To evaluate the impact of cytokine supplementation on MSC proliferation and pluripotency.
- To provide a reliable protocol for MSC expansion in regenerative medicine research.
Main Methods:
- Utilized magnetic cell sorting (MACS) for initial MSC enrichment.
- Employed plastic adherence for further purification and culture expansion.
- Assessed MSC pluripotency and proliferation rates post-cytokine supplementation.
Main Results:
- Successfully isolated and expanded functional murine bone marrow MSCs using a combined MACS and plastic adherence technique.
- Demonstrated that specific cytokine supplementation significantly enhances MSC proliferation rates.
- Confirmed that enhanced proliferation does not compromise the differentiation capacity or pluripotency of the expanded MSCs.
Conclusions:
- The described protocol offers a simple, efficient, and reproducible method for obtaining high-purity murine bone marrow MSCs.
- Cytokine supplementation is a viable strategy to increase MSC numbers for experimental applications without affecting their stem cell characteristics.
- This optimized protocol facilitates the use of MSCs in regenerative medicine and tissue engineering studies.
