Challenges and Controversies in Human Mesenchymal Stem Cell Therapy

Area of Science:

• Regenerative Medicine
• Translational Medicine
• Cell Therapy

Background:

• Mesenchymal stem cells (MSCs) are under intense investigation for therapeutic potential.
• High expectations exist for MSCs in translational medicine, but their mechanisms require further definition.
• While generally safe in vivo, MSC therapeutic effects are not yet spectacular.

Purpose of the Study:

• To critically review the complex nature of MSCs for effective and safe applications in regenerative medicine.
• To address challenges and define aspects of MSC therapy.
• To discuss MSC applications in various diseases, including graft-versus-host disease, cardiac, neurological, and orthopedic disorders.

Main Methods:

• Literature review and critical discussion of existing research on MSC therapy.
• Analysis of in vivo safety and efficacy data of MSC administration.
• Examination of potential risks associated with MSCs in specific cell niches.

Main Results:

• MSC administration in vivo has demonstrated safety and promising outcomes.
• The therapeutic efficacy of MSC-based treatments requires further enhancement.
• Potential risks associated with MSC application necessitate long-term observation.

Conclusions:

• MSC therapy holds significant promise for regenerative medicine but requires profound definition of its therapeutic mechanisms and safety profiles.
• Further research is essential to optimize MSC applications and mitigate risks for diverse diseases.
• Clarifying the complex nature of MSCs is crucial for advancing their clinical utility.