CXCL8 and cancer: These cancer-related processes include promotion of cell proliferation [21,22], evasion of apoptosis [13,23], tissue invasion mediated by matrix metalloproteinases (MMP) [24], cancer cell mobilisation and motility [8,25], expression of proinflammatory cytokines such as interleukin 6 (IL-6) and IL-8 by both cancer and immune cells [26,27,28], recruitment of macrophages into the tumour [12] and angiogenesis [24,29,30].