Factors, Macrophage-Activating

Medical Condition:
Factors, Macrophage-Activating

Factors secreted by stimulated lymphocytes that prime macrophages to become nonspecifically cytotoxic to tumors. They also modulate the expression of macrophage cell surface Ia antigens. One MAF is interferon-gamma (INTERFERON TYPE II). Other factors antigenically distinct from IFN-gamma have also been identified.