[Current basic understanding and clinical application of mesenchymal stromal/stem cells].

Area of Science:

• Cellular biology
• Immunology
• Regenerative medicine

Background:

• Mesenchymal stromal/stem cells (MSCs) possess immunomodulatory, regenerative, anti-inflammatory, and hematopoietic supportive properties.
• Clinical applications of MSCs are being developed for various diseases.
• Allogeneic MSC products are approved in Japan for treating acute graft-versus-host disease (GVHD).

Purpose of the Study:

• To provide an overview of MSC-based cell therapy's clinical development status.
• To summarize the fundamental understanding of MSC biology.
• To introduce a novel strategy for anti-GVHD effects using MSC-derived extracellular vesicles.

Main Methods:

• Review of current clinical development of MSC-based cell therapy.
• Summary of basic MSC biology.
• Investigation of bone marrow MSC-derived extracellular vesicles for anti-GVHD potential.

Main Results:

• MSCs have demonstrated therapeutic potential across various conditions.
• Clinical trials are ongoing to evaluate MSC efficacy and safety.
• Extracellular vesicles derived from MSCs are being explored as a cell-free therapeutic alternative.

Conclusions:

• MSC-based cell therapy is a rapidly advancing field with approved applications.
• Further research into MSC biology and novel delivery systems like extracellular vesicles is crucial.
• MSC-derived extracellular vesicles represent a promising avenue for managing GVHD.