IL4I1 and myeloid sarcoma: The expression of IL4I1 is not only seen in mice but also in individuals with MS, in which the increase in the expression of the Il4i1 gene could be detected in both normal appearing white matter (NAWM, log Fold change= 2.39, p = 0.00032) and demyelinated white matter lesions (WMLs, log Fold change= 2.88, p = 0.00010) of MS donors compared to white matter of control donors (CWM)40.