Electrospinning and 3D bioprinting for intervertebral disc tissue engineering.

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Orthopedics

Background:

• Intervertebral disc (IVD) degeneration is a primary cause of low back pain, imposing a significant socioeconomic burden.
• Existing treatments for IVD degeneration often fail to restore the native tissue architecture and functionality.
• Tissue engineering presents a potential alternative for treating IVD degeneration.

Purpose of the Study:

• To review recent advancements in 3D bioprinting and electrospinning for IVD degeneration treatment.
• To highlight the limitations of current tissue engineering approaches for IVD repair.
• To identify future research directions for clinical translation of these technologies.

Main Methods:

• Review of current literature on 3D bioprinting and electrospinning techniques for IVD tissue engineering.
• Analysis of scaffold fabrication, cell seeding, and extracellular matrix replication strategies.
• Evaluation of studies focusing on functional restoration of degenerated IVDs.

Main Results:

• 3D bioprinting and electrospinning enable the creation of cell-seeded scaffolds mimicking the native IVD extracellular matrix.
• These techniques show potential in replicating the complex structural and mechanical properties of the IVD.
• Significant challenges remain in achieving full functional restoration and long-term clinical efficacy.

Conclusions:

• 3D bioprinting and electrospinning are advanced tissue engineering strategies for addressing IVD degeneration.
• Further research is needed to overcome limitations related to vascularization, cell integration, and long-term outcomes.
• Optimizing these technologies holds promise for future clinical translation in treating low back pain caused by IVD degeneration.