Cell Surface Markers of Mesenchymal Stem Cells: Current Knowledge and Advances in Characterization Technologies

Area of Science:

• Stem Cell Biology
• Regenerative Medicine
• Immunology

Background:

• Mesenchymal stem cells (MSCs) possess multipotent differentiation capabilities and immunomodulatory functions, making them vital for tissue repair and regenerative therapies.
• Applications span cardiac, orthopedic, and hematological disorders, necessitating precise identification and characterization for efficacy and safety.
• Current MSC identification relies on plastic adherence, specific surface marker expression (CD105, CD73, CD90), lack of hematopoietic markers (CD45, CD34), and in vitro differentiation potential.

Purpose of the Study:

• To provide a comprehensive overview of the principal surface markers of mesenchymal stem cells (MSCs).
• To highlight the significance of these markers in stem cell biology.
• To discuss their role in clinical translation and therapeutic applications.

Main Methods:

• Literature review of studies focusing on mesenchymal stem cell surface markers.
• Analysis of established criteria for MSC identification and characterization.
• Synthesis of information on the functional relevance of key surface markers.

Main Results:

• MSCs are characterized by specific surface marker profiles, including CD105, CD73, and CD90, with minimal expression of hematopoietic markers.
• Understanding these marker expression patterns is critical for optimizing MSC isolation and therapeutic strategies.
• Surface markers play a significant role in modulating MSC behavior and therapeutic outcomes.

Conclusions:

• Accurate identification of MSCs via surface marker analysis is essential for advancing regenerative medicine.
• Further research into the functional significance of MSC surface markers will enhance therapeutic efficacy and minimize adverse effects.
• Targeting specific surface markers holds potential for improving MSC-based clinical applications.