The combination of this growth factor with MNC hUCB for the treatment of myeloid malignancies in human adults after radiation promoted cell engraftment in bone marrow replacement therapies.30, 31 Also, co‐administration of G‐CSF with MNC hUCB into an animal model of traumatic brain injury results demonstrated reduction of neuroinflammation and promotion of stem cells into the injured side of the brain.32 Here, CSF3 is linked to brain injury.