Regenerative strategies for intervertebral disc degeneration.

Area of Science:

• Regenerative Medicine
• Biomaterials Science
• Cell Biology
• Gene Therapy
• Exosome Biology

Background:

• Low back pain (LBP) is a global health issue, predominantly caused by intervertebral disc (IVD) degeneration.
• Current treatments for LBP primarily manage symptoms, failing to address the root cause of IVD degeneration.
• Regenerative strategies hold promise for restoring IVD structure and function by targeting degenerative mechanisms.

Purpose of the Study:

• To review recent advancements in regenerative approaches for intervertebral disc degeneration.
• To discuss the application of biomaterials, stem cells, exosomes, and gene therapy in IVD regeneration.
• To highlight challenges and future directions for clinical translation of regenerative therapies for LBP.

Main Methods:

• Comprehensive literature review of regenerative strategies for IVD degeneration.
• Analysis of biomaterial designs for drug delivery and tissue engineering.
• Evaluation of cell-based therapies, including stem cell sources and clinical trials.
• Exploration of cell-free approaches like exosome and gene therapies.

Main Results:

• Functional biomaterials are crucial for advanced delivery systems and IVD tissue engineering.
• Cell-based therapies show therapeutic potential but face challenges in cell survival and the disc microenvironment.
• Exosome and gene therapies offer promising cell-free avenues for IVD regeneration.
• Innovations like gene editing and 3D bioprinting are accelerating therapeutic development.

Conclusions:

• Regenerative medicine, encompassing biomaterials, cellular, and cell-free therapies, presents a vast potential for treating degenerative IVDs and reducing LBP.
• Overcoming challenges in immune compatibility, manufacturing, and regulatory pathways is essential for clinical translation.
• Interdisciplinary collaboration and global efforts are key to realizing the full potential of regenerative medicine for LBP.