CXCL8 and neoplasm: Quantification of ZC3H13, CCL5, CXCL8, and macrophage infiltration in clinical samples and cell line-derived xenograft (CDX) tumor models was conducted using real-time quantitative PCR (qRT-PCR), western blot (WB), immunohistochemistry (IHC), Immunofluorescence (IF), and Enzyme-linked immunosorbent assay (ELISA).