Introducing anti-IL-8 antibody into co-culture CM in the same subcutaneous xenograft tumor model (Fig. 6G) suppressed the tumor volume and weight of both 143B-Luc and SJSA-1 cells in the anti-IL-8 antibody group (Fig. 6H–J, Supplemental Fig. 5D–F) compared with that in the control group. The gene discussed is CXCL8; the disease is neoplasm.