Moreover, IFN-γ affects tumour cells to be more susceptible to T-cell-mediated killing (Gerrard et al, 1988) and upregulates the chemokines IP-10 (interferon-inducibleprotein) and MIG (monokine induced by gamma interferon) resulting in decreased angiogenesis (Angiolillo et al, 1995; Palmer et al, 2001). This evidence concerns the gene CXCL9 and neoplasm.