Spinal cord injuries remain especially difficult to treat because the human body cannot fully restore damaged nerve pathways. A major reason is the immune response that follows injury: instead of staying controlled, it can become excessive and trigger lasting damage in the affected area.

According to the report, this intense inflammation contributes to the buildup of scar tissue in the spinal cord. That scarring acts like a physical and biological barrier, preventing nerve cells from reconnecting and limiting the body’s ability to recover lost function.

The new findings point to a more helpful side of the immune system. Researchers say certain “good” immune cells may play an important role in regeneration by helping the injured spinal cord respond in a more balanced way. Rather than fueling damaging inflammation, these cells appear to support conditions that are more favorable for repair.

The work adds to growing interest in therapies that do not simply suppress immunity, but instead guide it toward healing. If scientists can learn how to strengthen these beneficial immune responses, it could open new paths for reducing scar formation and improving recovery after spinal cord injury.