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Updated: May 12, 2026
05:46
A Proinflammatory, Degenerative Organ Culture Model to Simulate Early-Stage Intervertebral Disc Disease.
Published on: February 14, 2021
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Hydrogel delivery systems in intervertebral disc degeneration: Current status and future perspectives
Jianming Zhang1, Chao Li1, Haoran Liu1
1Orthopaedic Department, Peking University First Hospital, Beijing, China.
Summary
Hydrogels offer promising solutions for intervertebral disc degeneration (IVDD) by modulating the microenvironment and delivering cells. These advanced materials pave the way for functional regeneration, moving beyond conventional treatments for low back pain.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Orthopedics
Background:
- Intervertebral disc degeneration (IVDD) is a major cause of low back pain, marked by extracellular matrix (ECM) degradation, oxidative stress, inflammation, and cellular exhaustion.
- Current therapies for IVDD, including pharmacological and surgical options, often fail to achieve functional disc regeneration.
- Hydrogel delivery systems present a promising approach for bridging the gap between palliative care and regenerative repair in IVDD.
Purpose of the Study:
- To systematically review recent advancements in hydrogel applications for treating intervertebral disc degeneration (IVDD).
- To analyze hydrogels based on the 'soil-seed' theory, focusing on microenvironment modulation, cell delivery, and smart responsiveness.
- To highlight breakthrough applications and discuss challenges and future directions in hydrogel-based IVDD therapy.
Main Methods:
- Systematic review of literature on hydrogel applications for IVDD.
- Categorization of hydrogels based on their functions: microenvironment modulation, cell delivery/protection, and smart responsiveness.
- Analysis of specific applications including drug delivery, ECM repair, mechanical design, and synergistic therapies.
Main Results:
- Microenvironment-modulating hydrogels (e.g., pH/ROS-responsive, decellularized matrix) can remodel degenerative disc environments.
- Cell delivery and protective hydrogels (cell-laden, gene-activated, exosome-encapsulated) enhance cell survival and function.
- Smart-responsive and multifunctional hydrogels enable precise, spatiotemporal therapeutic delivery for IVDD.
Conclusions:
- Hydrogels represent a significant advancement in IVDD treatment, offering tailored solutions for microenvironment repair and cell therapy.
- Challenges include optimizing degradation-regeneration cycles and establishing standardized evaluation systems for hydrogel therapies.
- Future directions involve interdisciplinary approaches, including AI and gene editing, to develop intelligent hydrogels for functional disc reconstruction.
Keywords:
Extracellular matrixHydrogelsIntervertebral disc degenerationMicroenvironmentRegenerative medicineMore Related Videos
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