Efforts to promote osteogenesis-angiogenesis coupling for bone tissue engineering.

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Orthopedic Surgery

Background:

• Critical-size bone defects pose significant clinical challenges.
• Tissue engineering offers a promising alternative to traditional bone grafts.
• Achieving coupled osteogenesis and angiogenesis is crucial for effective bone regeneration.

Purpose of the Study:

• To comprehensively review current strategies for enhancing osteogenesis-angiogenesis coupling in bone tissue engineering.
• To analyze the advantages, limitations, and underlying mechanisms of various approaches.
• To propose future research directions for improved vascularized bone formation.

Main Methods:

• Review of existing literature on bone tissue engineering and regenerative medicine.
• Analysis of strategies focusing on scaffold components, structure, bioactive substance loading, and cell selection.
• In-depth discussion of the interplay between osteogenesis and angiogenesis.

Main Results:

• Scaffold component optimization, structural modification, bioactive substance loading, and cell employment are key strategies.
• Each strategy offers specific advantages and faces unique challenges in promoting coupled bone and vascular growth.
• Understanding these strategies is vital for advancing bone regeneration therapies.

Conclusions:

• Optimizing scaffold design, incorporating bioactive factors, and selecting appropriate cells are critical for vascularized bone formation.
• Further research into synergistic approaches is needed to overcome current limitations.
• This review provides insights for developing more efficient bone regeneration strategies.