CXCL5 and pancreatic neoplasm: Further supporting that CXCL5 is secreted by epithelial pancreatic cancer cells, Chao et al., using tumor-bearing KPC and KPC with the RosaLSL-YFP-allele (KPCY) mice, found that the CXCL5 expression was primarily concentrated in the tumor as opposed to the stroma [69].