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Notochordal cell-derived therapeutic strategies for discogenic back pain
D Purmessur1, M C Cornejo1, S K Cho1
1Orthopaedic Research Laboratory, Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, New York, United States.
Abstract:
An understanding of the processes that occur during development of the intervertebral disk can help inform therapeutic strategies for discogenic pain. This article reviews the literature to identify candidates that are found in or derived from the notochord or notochordal cells and evaluates the theory that such factors could be isolated and used as biologics to target the structural disruption, inflammation, and neurovascular ingrowth often associated with discogenic back pain. A systematic review using PubMed was performed with a primary search using keywords "(notochordal OR notochord) And (nerves OR blood vessels OR SHH OR chondroitin sulfate OR notch OR CTGF) NOT chordoma." Secondary searches involved keywords associated with the intervertebral disk and pain. Several potential therapeutic candidates from the notochord and their possible targets were identified. Studies are needed to further identify candidates, explore mechanisms for effect, and to validate the theory that these candidates can promote structural restoration and limit or inhibit neurovascular ingrowth using in vivo studies.
Insights
The notochord may offer therapeutic targets for discogenic back pain. Identifying notochordal factors could lead to biologics that repair disc structure and reduce inflammation and nerve growth.
Area of Science:
- Biomedical research
- Regenerative medicine
- Spinal health
Background:
- Discogenic pain is a significant health issue.
- The intervertebral disc's development is key to understanding disc degeneration.
- The notochord's role in disc development is increasingly recognized.
Purpose of the Study:
- To review literature on notochord-derived factors for treating discogenic pain.
- To evaluate the potential of these factors as biologics for disc repair.
- To identify targets for therapeutic intervention in discogenic back pain.
Main Methods:
- Systematic literature review using PubMed.
- Primary search terms: notochordal/notochord AND nerves/blood vessels/SHH/chondroitin sulfate/notch/CTGF NOT chordoma.
- Secondary searches focused on intervertebral disc and pain keywords.
Main Results:
- Several potential therapeutic candidates derived from the notochord were identified.
- These candidates may target structural disruption, inflammation, and neurovascular ingrowth.
- The notochordal origin of these factors suggests a biological basis for disc regeneration.
Conclusions:
- Notochord-derived factors show promise for treating discogenic back pain.
- Further in vivo studies are needed to validate therapeutic potential.
- Research should focus on identifying candidates, understanding mechanisms, and promoting structural restoration.
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