Bone repair with skeletal stem cells: rationale, progress to date and clinical application

Area of Science:

• Stem cell biology
• Skeletal development
• Regenerative medicine

Background:

• Bone marrow harbors hematopoietic and nonhematopoietic stem cells.
• The role of nonhematopoietic stem cells, or skeletal stem cells (SSCs), is less understood.
• SSCs are crucial for skeletal development, giving rise to cartilage, bone, marrow fat, and supportive stroma.

Purpose of the Study:

• To review recent advances in understanding the origins and in vivo homeostatic functions of SSCs.
• To highlight current and future SSC-based therapeutic strategies for skeletal and joint disorders.

Main Methods:

• Literature review of recent research on skeletal stem cells.
• Analysis of in vivo studies on SSC origins and functions.
• Synthesis of information on current and emerging SSC-based treatments.

Main Results:

• Recent advances shed light on the origins and homeostatic roles of SSCs.
• SSCs orchestrate skeletal tissue formation during development.
• Emerging SSC-based therapies show promise for skeletal and joint conditions.

Conclusions:

• Further understanding of SSC biology is critical for advancing regenerative medicine.
• SSC-based treatments represent a promising frontier for skeletal and joint disorders.