CXCL8 and ovarian cancer: High levels of IL-8 were produced by all three pancreatic cell lines tested (mean range 735–959 pg/mL), by SKOV3 ovarian cancer cells (mean 2492 pg/mL), and by the triple negative breast cancer (TNBC) cell lines CAL51, BT20, and MDA-MB-468 (mean range 197–790 pg/mL).