Spinal Cord Injury
Stem Cell Therapy for Spinal Cord Injury
Spinal cord injury (SCI) results from a mechanical injury to the spinal column. Worldwide, over 700,000 individuals sustain a spinal cord injury. This could be the result of a penetrating trauma (e.g. bullet) or blunt force trauma (e.g. car accident).
Eighty percent of spinal injuries occur in men, with 55% of injuries being in the cervical region. The rest are evenly split 15% each in the thoracic, thoracolumbar and lumbar. The average age of an individual sustaining an SCI is just over 40. What that means is without significant recovery, those affected will need substantial care for decades. Estimates for the economic burden of lifelong care average $4 million.
Spinal cord injury disrupts the nerve connections between the brain and the body, resulting in paralysis. There are two mechanisms of injury from an SCI, known as primary and secondary.
Primary Injury: Refers to the acute initial event. This could be any of the following:
- Missile
- Distraction
- Laceration
- Shear
- Impact Compression
Secondary Injury:
The secondary cascade of injury occurs in the hours and days after the initial injury.
This includes ischemia, anoxia, inflammation, swelling, cell death and scar formation.
While this is a complicated process, not much of these processes are actually helpful for healing. Free radicals accumulate, electrolye abnormalities occur, heart function decreases, blood pressure drops, and blood vessels spasm reducing blood flow.
Initial treatment includes ICU support and often high doses of steroids. Blood pressure stabilization is critical. Surgery may be needed to stabilize the spine.
Most recovery from a SCI will occur within the first six months, while additional recovery may occur for up to five years. Prior to stem cell therapy, no effective biologic has been available to assist with spinal cord recovery.
There are spontaneous healing mechanisms activated, such as endogenous stem cell activation, remyelination and neural plasticity. But without some sort of exogenous assistance, they have not resulted in significant functional recovery.
The goal with using stem cells for SCI is to achieve some meaningful functional recovery with safe biologics that provide more benefit than risks. To date, the best outcomes so far have been seen with what’s termed Adult Stem Cells and not Embryonic Stem Cells.
What does this mean? Well, embryonic stem cells are the ones that come from either aborted fetuses or left over embryos after an in vitro fertilization. Using them clinically may result in a significant rejection reaction, or possibly a tumorigenic response. Therefore, they are not ready for clinical use.
The adult stem cells, however, are what R3 International uses every day for patient treatments. These come from donated post-natal tissue after a regularly scheduled c-section. The mothers are consented and heavily screened for communicable diseases, and no harm occurs to either the baby or the mother.
The tissue consists of the umbilical cord, amniotic fluid and placenta. As weird as it sounds, the stem cells that come from the tissue fall into the adult stem cell category. The tissue is extremely rich in mesenchymal and hematopoetic stem cells, cytokines, growth factors, exosomes, secretomes, mRNA, translational proteins and hyaluronic acid.
What are the specific goals for patients undergoing stem cell therapy for spinal cord injury?
- Reduce cell death and damage
- Promote axon regeneration
- Enhance remyelination
- Produce bridging materials to fill cavities
- Reduce inflammation
- Promote angiogenesis
- Provide growth factors
In humans, regeneration of neurons may seem like a pipe dream. But all one needs to do is look at the salamander to see that it is possible to have proliferation of glial cells to stimulate axon growth, recreate the neural tube and regain significant function!
When looking at clinical studies on stem cells for SCI, comparisons between them can be difficult. This relates to the differences in numbers of cells used, types of cells and time differences in chronicity of SCI.
However, one overlying positive is just how safe the usage of adult stem cells has been. Most complications during studies using adult stem cells for SCI have shown minimal issues related to the stem cells themselves and more to simply the fact that the patient has a SCI and related effects.
How do injected stem cells actually help when injected directly into the spinal cord? There are various theories, one of which is that the cells indirectly affect axon regeneration. This involves activating the endogenous stem cells, removal of scarring and forming extracellular matrix to guide the regenerating axons.
Neuroprotection from MSC’s occurs due to the release of a number of neurotrophic factors. This may include brain-derived growth factor, glial derived growth factor, nerve growth factor, and basic fibroblast growth factor. The combination of these growth factors is instrumental I preventing nerve degeneration and cell death, while on the other hand supporting neurogenesis, axon growth, remyelination and cell metabolism.
In the video below, R3 CEO David Greene, MD, MBA, goes through several clinical studies looking at using MSC’s for spinal cord injury and the results.
R3 Stem Cell International offers amazingly effective regenerative procedures for spinal cord injury. Several options are available, with up to a billion live, active stem cells!
The process for receiving stem cell treatment for spinal cord injury starts with a free phone consultation, simply call us today at +1 (888) 988-0515.
References:
Current Status and Future Strategies to Treat Spinal Cord
Injury with Adult Stem Cells, Jeong et al, 2020, J Korean Neurosurg Soc, 153-162.
Mesenchymal Stem Cells for Spinal Cord Injury:
Current Options, Limitations, and Future of
Cell Therapy, Cofano et al, Int Journal of Molecular Sciences, 2019.
Clinical observation of umbilical cord mesenchymal stem cell transplantation in treatment for sequelae of thoracolumbar spinal cord injury, Cheng et al, J Transl Med 2014.