NCIt definition : A recombinant therapeutic agent which is chemically identical to or similar to the
endogenous lymphokine interferon gamma (IFN-gamma) with antineoplastic, immunoregulatory,
and antiviral activities. Therapeutic IFN-gamma binds to and activates the cell-surface
IFN-gamma receptor, stimulating antibody-dependent cytotoxicity and enhances natural
killer cell attachment to tumor cells. This agent also activates caspases, thereby
inducing apoptosis in malignant cells. (NCI04);