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Designing drugs that encourage spinal cord injury healing
1University of Kansas Medical Center, Departments of Neurology, Physiology and Pharmacology , Kansas City, KS 66170 , USA.
Introduction:
Spinal cord injury (SCI) occurs within seconds, but host responses may take years. Although life expectancy has increased, half of the survivors end up as paraplegics, with many indeed as quadriplegics. Host responses may have multiple effects ranging from inhibiting inflammation to preventing repair and regeneration. Efforts seek to translate exciting results from unsatisfactory animal models to humans.
Areas Covered:
The author reviews the current basic and translational research for SCI treatment that: i) limits secondary injury; and ii) enhances endogenous repair and regeneration. The article provides an emphasis on pro-inflammatory factors (TNF-α, high-mobility group B protein 1) that are targeted to encourage healing.
Expert Opinion:
Research in the coming years needs to be directed at therapeutic agents - whether drugs, biologics or biomaterials - that encourage repair and regeneration and, at the same time, limit cell death and axonal lesions. The author believes that the process of harnessing the power of these innate responses will remain the challenge for the future in the quest for effective therapeutic options.
Insights
Spinal cord injury (SCI) research focuses on limiting secondary damage and enhancing natural healing. Future therapies must balance reducing cell death with promoting regeneration for effective treatment.
Area of Science:
- Neuroscience
- Regenerative Medicine
- Translational Research
Background:
- Spinal cord injury (SCI) has immediate effects, but long-term host responses can impede recovery and regeneration.
- Despite increased life expectancy, many SCI survivors experience significant paralysis, highlighting the need for effective treatments.
- Current research aims to translate findings from animal models to human therapies for SCI.
Purpose of the Study:
- To review current basic and translational research for spinal cord injury (SCI) treatment.
- To identify therapeutic strategies that limit secondary injury and enhance endogenous repair and regeneration.
- To emphasize the role of pro-inflammatory factors in healing after SCI.
Main Methods:
- Review of current scientific literature on SCI treatment.
- Analysis of research focusing on limiting secondary injury.
- Examination of strategies to enhance endogenous repair and regeneration, including targeting pro-inflammatory factors like TNF-α and high-mobility group B protein 1.
Main Results:
- Host responses to SCI can be multifaceted, influencing both inflammation and the potential for repair.
- Targeting pro-inflammatory factors such as TNF-α and high-mobility group B protein 1 shows promise for encouraging healing.
- Translational research is crucial for moving SCI treatment strategies from animal models to human application.
Conclusions:
- Future research should focus on developing therapeutic agents (drugs, biologics, biomaterials) that promote regeneration while minimizing cell death and axonal damage.
- Harnessing the body's innate repair mechanisms presents a significant challenge for developing effective SCI therapies.
- A balanced approach is needed to limit secondary injury and simultaneously encourage repair and regeneration for improved SCI outcomes.