In a study of therapeutic effects of ipilimumab (monoclonal antibody targeting CTLA-4), an increased secretion of IL-1β, IL-2, IL-4, IL-5, IL-7, IL-8, IL-10, IL-13, IL-17, Granulocyte-colony stimulating factor (G-CSF), Granulocyte-macrophage colony-stimulating factor (GM-CSF), HGF, IFNγ, Monocyte chemoattractant protein 1 (MCP-1, CCL2) and VEGF from peripheral blood mononuclear cells (PBMCs) showed a trend towards better recurrence free survival in melanoma [69]. Here, IL2 is linked to melanoma.