Spinal cord injuries are devastating because the body forms a thick scar that blocks nerves from regrowing, leading to permanent paralysis. To solve this, Northwestern researchers grew "mini-spinal cords" in a lab and treated them with "dancing molecules." These special molecules move quickly to "talk" to human cells and tell them to heal. The benefit is that the treatment shrank the scars and helped new nerve fibres grow, proving this therapy could one day help paralyzed people walk again.
