Prospective isolation and characterization of human bone marrow-derived MSCs

Area of Science:

• Stem cell biology
• Regenerative medicine
• Hematology

Background:

• Mesenchymal stem/stromal cells (MSCs) are of significant interest in hematology and regenerative medicine.
• Traditional MSC isolation relies on adherence to culture flasks, which is influenced by various biological factors and lacks information about the initial cell population.
• Limitations of conventional methods include unpredictable influences from secreted molecules, co-cultured cells, and arbitrary timing of non-adherent cell removal.

Purpose of the Study:

• To address the limitations of functional MSC isolation.
• To introduce strategies for prospective MSC isolation based on surface marker expression.
• To provide an overview of established and novel markers for antibody-based isolation and characterization of bone marrow-derived MSCs.

Main Methods:

• Review and summary of frequently used surface markers for MSC identification.
• Introduction of new potential targets for MSC isolation.
• Focus on antibody-based isolation techniques.
• Emphasis on quality control for MSC source and product.

Main Results:

• Conventional MSC isolation methods have inherent limitations affecting cell purity and characterization.
• Prospective isolation strategies using surface markers offer a more defined approach.
• Established and novel markers are crucial for accurate MSC identification and quality control.

Conclusions:

• Prospective isolation of mesenchymal stem/stromal cells (MSCs) using surface markers is superior to traditional adherence-based methods.
• Accurate characterization and quality control of MSCs are essential for their application in hematology and regenerative medicine.
• The identified markers facilitate improved isolation and characterization of bone marrow-derived MSCs.