CXCL1 and neoplasm: Our analysis was devoted to both receptors (CXCR1/2) and ELR+CXCL cytokines (CXCL1, 2, 3, 5, 6, 7, 8) selected from six independent datasets (M1–M6) and compared with datasets from a normal brain (NB) and a tumour brain (TB).