CXCL8 and hilar cholangiocarcinoma: In addition, the high expression of IL-8 is associated with low survival of patients with basal-like breast cancer [31], colorectal cancer [32], chronic lymphocytic leukemia [33, 34], hilar cholangiocarcinoma [35], lung adenocarcinoma [31], non-small cell lung carcinoma [31], pancreatic cancer [36], and ovarian cancer [31, 37, 38].