MIG (CXCL9) protein belongs to the family of chemotactic cytokines known as chemokines. The synthesis of MIG is specifically induced in macrophages and in other cells by IFN-gamma.Human neutrophils produce mig in response to IFN-gamma in combination with either TNF-alpha or bacterial lipopolysaccharides and this response is blocked by IL-10 and IL-4. MIG is a chemoattractant for stimulated but not resting T cells, however it is not active on neutrophils or monocytes.