Markers for characterization of bone marrow multipotential stromal cells

Area of Science:

• Cell Biology
• Biotechnology
• Regenerative Medicine

Background:

• Mesenchymal stem cells (MSCs) show therapeutic potential in graft-versus-host and cardiac diseases.
• Current characterization of manufactured MSC batches for purity and potency is limited.
• Standardized methods are needed to ensure MSC product quality and efficacy.

Purpose of the Study:

• To review surface and molecular markers for assessing MSC potency, including proliferative and differentiation potential.
• To critically discuss surface markers for isolating uncultured bone marrow (BM) MSCs.
• To identify markers with translational value for MSC research and therapeutic applications.

Main Methods:

• Literature review of proposed surface and molecular markers for MSC potency.
• Critical analysis of surface markers for prospective isolation of native bone marrow MSCs.
• Discussion of markers with cross-reactivity in animal models for translational research.

Main Results:

• Several surface and molecular markers have been proposed to indicate MSC potency.
• No definitive consensus exists on optimal markers for isolating bone marrow MSCs.
• Markers like CD271 and W8-B2/MSCA-1 show translational potential due to cross-reactivity in animal models.

Conclusions:

• Accurate characterization of MSCs is essential for their clinical application.
• Further research is needed to establish robust markers for MSC isolation and potency assessment.
• Animal models are critical for validating marker function, safety, and efficacy in MSC-based therapies, particularly in tissue engineering.