Researchers from Helmholtz Munich and the LMU have discovered that, in the case of brain injuries, specific cells in the brain become active in disease situations, exhibiting properties of neural stem cells. The authors further discovered that a specific protein regulates these cells and hence could function as a target for therapy and thereby contribute to better treatments for brain injuries in the future. The new findings shed light on the specificity of astrocyte reaction in different injury conditions and the results are now published in Nature Medicine.