Researchers at Northeastern University have developed an innovative stem cell–based technique to repair nerve damage, offering new hope for patients who suffer severe injuries from car accidents, wartime trauma, or major physical injuries. The breakthrough focuses on generating Schwann cells, which play a crucial role in supporting and repairing damaged nerves.
The Challenge of Repairing Nerve Damage
Severe physical trauma often damages the peripheral nervous system, which carries signals from the spinal cord to the rest of the body. In such cases, surgeons rely on Schwann cells because these cells help regenerate and support injured nerves.
However, obtaining Schwann cells is not simple. Traditionally, surgeons must remove a healthy nerve from another part of the patient’s body, usually from the back of the calf. Although effective, this procedure can lead to complications such as loss of sensation and additional surgical trauma.
A New Approach Using Nasal Stem Cells
To address this challenge, researchers Ryan Koppes and Abigail Koppes, associate professors of chemical engineering at Northeastern University, have developed a method that converts stem cells from the patient’s nasal cavity into Schwann cells.
In a clinical setting, doctors would first collect nasal stem cells through a simple outpatient biopsy, taken from an area similar to where a COVID-19 nasal swab is performed. Because stem cells function like a blank slate, they can transform into different cell types during growth, repair, or recovery.
According to Katelyn Neuman, a former Ph.D. student in Ryan Koppes’ laboratory who co-led the project, these nasal stem cells are easier to collect and more readily converted into Schwann cells.
Transforming Stem Cells into Schwann Cells
Once extracted, researchers grow the stem cells in a specialized laboratory environment containing specific proteins and culture media. These biological signals guide the cells to differentiate into Schwann cells, which can later be used to repair damaged nerves.
Reducing Risks and Improving Treatment
Importantly, because the stem cells come from the same patient, the risk of immune rejection significantly decreases. The method could also eliminate the need to remove healthy nerves, thereby reducing surgical complications and improving recovery outcomes.
Future Research and Clinical Trials
As reported by medicalxpress, the research team recently received a patent for this discovery. Moving forward, they plan to conduct preliminary human trials using nasal stem cells obtained from cadavers, which will help evaluate the treatment’s clinical potential.
Ultimately, this breakthrough could transform nerve regeneration therapies and improve recovery for patients with serious nerve injuries worldwide.