Biomaterials for articular cartilage tissue engineering: Learning from biology

Area of Science:

• Orthopedics and Musculoskeletal Tissue Engineering
• Biomaterials Science
• Regenerative Medicine

Background:

• Articular cartilage, despite its simple appearance, possesses a complex, organized structure and unique biomechanical properties.
• Chondral and osteochondral defects present significant challenges in orthopedics and tissue engineering.
• Current limitations hinder the faithful repair and regeneration of native articular cartilage.

Purpose of the Study:

• To review current therapies for articular cartilage repair.
• To explore biomaterials developed for tissue engineering strategies.
• To assess the potential of these strategies in recreating cartilage structure and function.

Main Methods:

• Review of available literature on cartilage repair therapies.
• Analysis of research on biomaterials for articular cartilage tissue engineering.
• Evaluation of strategies for recreating cartilage composition, organization, and mechanical function.

Main Results:

• Articular cartilage's heterogeneous composition and high level of organization present significant repair challenges.
• Various biomaterials have been developed for tissue engineering, aiming to replicate cartilage structure and function.
• Current approaches face limitations in achieving high-fidelity repair and clinical translation.

Conclusions:

• The functional, organized composition of articular tissue dictates its mechanical properties, making its recreation difficult.
• Tissue engineering and biomaterials science, through an interdisciplinary approach, are revolutionizing cartilage repair strategies.
• Emerging technologies hold promise for improved clinical translation of articular cartilage regeneration.