Figure 2 shows that the concentrations of important chemokines such as IL-8 and MCP-1 were also elevated in NB patients at diagnosis with respect to the control group: IL-8 (535.63 pg/mL vs. 2.296 pg/mL) and MCP1 (1406.89 pg/mL vs. 314.62 pg/mL) (Figure 2). Here, CXCL8 is linked to neuroblastoma.