NCIt definition : A complex of polyethylene glycol conjugated with human recombinant cytokine interleukin-2
(IL-2) with antineoplastic activity. PEG-interleukin-2 induces natural killer (NK)
cell activity and the production of interferon-gamma (IFN-gamma), and enhances T cell-mediated
cytotoxicity. Pegylation of IL-2 protects the cytokine from degradation. (NCI04);