Biologically based therapy for the intervertebral disk: who is the patient?

Area of Science:

• Biomedical Engineering
• Regenerative Medicine
• Spinal Research

Background:

• The intervertebral disc (IVD) is vital for spinal function, load tolerance, and cord protection.
• IVD degeneration leads to pain and disability, necessitating effective therapeutic strategies.
• The IVD's unique anatomy also presents a barrier to metastatic disease, a complex characteristic.

Purpose of the Study:

• To review challenges in treating degenerative intervertebral disc disease (IVDD).
• To summarize current regenerative approaches for IVDD, including biological agents and cell-based therapies.
• To emphasize the importance of patient-specific considerations in developing effective IVDD treatments.

Main Methods:

• Review of existing literature on IVD regeneration.
• Analysis of various biological agents (growth factors, hydrogels, plant sterols, spices) for IVD repair.
• Evaluation of stem/progenitor cells and autologous chondrocytes in preclinical and clinical studies.

Main Results:

• Multiple biological agents and cell therapies show promise in preclinical and some clinical settings.
• Current regenerative strategies face challenges in improving function and reducing pain compared to existing treatments.
• The "patient" context is crucial for tailoring regenerative therapies to individual needs.

Conclusions:

• Significant efforts are underway to regenerate or modulate degenerative changes in the intervertebral disc.
• Biological therapies for IVDD must demonstrate clear functional improvements and pain reduction over current standards of care.
• A patient-centered approach is essential for the successful clinical translation of IVD regenerative strategies.